# MCM Composites, LLC

This MFR.ID profile was supplied, reviewed, and approved by MCM Composites, LLC. Originally approved on 10/5/2026; last updated 10/5/2026. Capability data is manufacturer-approved for public sourcing and RFQ use.

## Profile Links

- Canonical profile: https://mfr.io/mcmusa
- JSON data: https://mfr.io/mcmusa.json

## Company Overview

MCM Composites, LLC is a specialist thermoset molder delivering precision injection, compression and transfer molded parts for electronics, appliance and industrial markets. Since 1983 the company has produced parts ranging from 0.1 g to 10 lb using phenolics, alkyds, polyester (BMC/SMC), carbon‑filled and composite compounds. In‑house tooling, a fully equipped tool room, quality lab, finishing and secondary operations (tapping, drilling, coating, assembly) enable rapid prototyping through multi‑million part runs and tight process control.

## Quick Reference

- Processes: Thermoset Injection Molding, Thermoset Compression Molding, Mold Fabrication (Tool & Die), Engineering & Design Services, Inspection & Quality Control, Secondary Operations & Value-Added Services
- Lead Time: 1-4 weeks
- Location: Manitowoc, WI 54220
- Employees: 51-200
- Revenue: $5M-$10M
- Founded: 1983
- Contact: info@mcmusa.net - +1 920-684-7800
- Verified: Manufacturer Approved

## Capabilities

### Thermoset Injection Molding

Precision thermoset injection molding for electrical, appliance, and industrial parts that need dimensional stability, insulating performance, and resistance to heat, chemicals, and wear. Inside MCM's molding operation, 75 to 500 ton presses, insert molding support, and advanced controls such as degas, gate-cut, core-pull, and runnerless injection-compression help carry programs from prototype through sustained production. In-house tooling, repair, and quality resources keep cost, lead time, and process control tightly aligned.

- Process: Thermoset Injection Molding
- Highlights: 75–500 ton press capacity supports small precision parts through larger molded components, Thermoset material mix includes phenolics, BMC/SMC, carbon-filled, and other composite compounds, Insert molding and engineered process controls support more demanding assemblies, In-house tooling, repair, QA, and secondary operations keep programs under one roof
- Subprocesses: Transfer Molding, Overmolding, Multi-Cavity & Complex Action Molds, Mold Transfer & Requalification, Tooling Maintenance & Refurbishment, Secondary Operations & Value-Added Services, Drilling, Tapping
- Specifications:
  - Reinforcements & Fillers Supported: Carbon Fiber - Carbon-fiber compound selection depends on strength, stiffness, conductivity, surface, and molding requirements.
  - Clamp Force Range: 75-500 ton (667.2-4448 kN) - Press selection depends on projected area, cavity pressure, cavity count, and mold design.
  - Process Monitoring & Controls: Degas Sequence - Degas sequencing helps manage trapped air and volatiles; sequence requirements depend on the compound, part, and mold.
  - Process Configurations Supported: Injection-Compression - Injection-compression is available where the compound, part geometry, and mold design support a controlled fill-and-compress sequence; confirm suitability during DFM.
  - Secondary Operations: Deflashing, Drilling, Tapping, Machining, Epoxy Application, Adhesive Bonding, Metal Insertion, Metallizing, Painting, Potting, Coating, Assembly - In-house finishing and assembly can reduce handoffs after molding; operation sequencing and inspection requirements are reviewed with the part.
  - Thermoset Compound Forms Supported: Bulk Molding Compound (BMC), Sheet Molding Compound (SMC) - BMC and SMC availability depends on the resin system, reinforcement package, feed requirements, and mold design; confirm injection suitability during DFM.
  - Insert & Encapsulation Capabilities: Insert Molding, Metal Inserts, Multiple Inserts - Insert molding supports metal and multiple-insert applications; insert geometry, retention, loading, and thermal expansion are reviewed during DFM.
  - Platen Size Range: Min: 18.7W x 20.7H in (475W x 525.8H mm), Max: 52.7W x 47.2H in (1339W x 1199H mm) - Platen size is the mold-mounting area, not the molded-part envelope; confirm tie-bar clearance and daylight.
  - Supported Performance Requirements: Dielectric Performance, Heat Resistance, Chemical Resistance, Dimensional Stability, Creep Resistance, Low Moisture Absorption - Material selection and qualification determine attainable electrical, thermal, chemical, dimensional, creep, and moisture-performance levels.
  - Post Bake & Post Cure Capability: Post Bake - Post-bake is available when required by the resin system and performance specification; temperature and duration are application-specific.
  - Production Stages Supported: Prototype, Short Run, High Volume - Programs can progress from prototype development to high-volume production; tooling strategy and qualification requirements vary by stage.
  - Shot Mass Capacity Range: Up to 7.908 lb (Up to 3587 g) - Maximum shot capacity varies by compound and includes runners and gates, so it is not a finished-part-weight limit.
  - Dimensional Tolerance Capability: 0.0015 in (0.0381 mm) - Published tolerance capability is subject to material, geometry, tooling, datum scheme, and drawing review.
  - Quality Documentation Available: AS9102 First Article Inspection, Production Part Approval Process (PPAP), Statistical Process Control (SPC), Capability Studies, Gage R&R, CMM Inspection, NIST-Traceable Calibration - PPAP, AS9102 first articles, SPC, capability studies, Gage R&R, CMM inspection, and NIST-traceable calibration support applicable program requirements.
  - Resin Families Supported: Phenolic, Alkyd, Unsaturated Polyester, Melamine, Epoxy, Vinyl Ester - Material selection is matched to the application's electrical, thermal, chemical, structural, and dimensional requirements.
  - Mold & Tooling Configurations Supported: Single-Cavity Mold, Multi-Cavity Mold, Family Mold, Insert Tooling, Core-Pull / Side-Action - Single-cavity, multi-cavity, family, insert, and side-action tooling are available; final configuration depends on geometry, volume, and quality requirements.
  - Molded Part Weight Range: 0.0002205-10 lb (0.1-4536 g) - Part-weight fit depends on material, geometry, inserts, runner system, and available shot capacity.
  - Runner & Gate Systems Supported: Runnerless, Cold Runner, Gate-Cut - Runnerless, cold-runner/manifold, and gate-cut options are available; selection depends on compound behavior, geometry, and tooling economics.

### Thermoset Compression Molding

Close-tolerance thermoset compression molding for lightweight, high-strength parts where heat resistance, dimensional stability, and structural performance all matter. Up-acting and down-acting presses from 50 to 800 tons, plus top, bottom, and double transfer options, give MCM flexibility across short prototype runs and higher-volume production. The capability is especially well suited to BMC and SMC programs that need durable performance with less downstream finishing and tighter repeatability.

- Process: Thermoset Compression Molding
- Highlights: 50–800 ton press capacity supports a broad range of thermoset compression programs, BMC, SMC, and related thermoset compounds support structural and electrical applications, Transfer options and insert encapsulation expand part-design flexibility, Finishing support helps reduce manual cleanup and improve part consistency
- Subprocesses: Transfer Molding, Insert Molding, Multi-Cavity & Complex Action Molds, Deflashing (Rubber)
- Specifications:
  - Mold & Tooling Configurations Supported: Multi-Cavity Mold, Core-Pull / Side-Action - Multi-cavity and core-pull tooling are available; final configuration depends on geometry, inserts, volume, handling, and qualification requirements.
  - Machine Minimum Mold Height Range: 9-26.5 in (228.6-673.1 mm) - Minimum mold-height ratings help screen machine fit but must be evaluated with platen layout, daylight, stroke, and mold construction.
  - Secondary Operations: Deflashing, Drilling, Tapping, Machining, Epoxy Application, Adhesive Bonding, Metal Insertion, Metallizing, Painting, Potting - Integrated post-molding operations can reduce handoffs; sequencing, tolerances, finish, inspection, and delivery location are defined for the part.
  - Press Daylight Range: 23.75-49 in (603.2-1245 mm) - Available daylight supports a range of mold stack heights and opening needs; installed mold height, stroke, ejection, and handling clearance remain part-specific.
  - Thermoset Compound Forms Supported: Bulk Molding Compound (BMC), Sheet Molding Compound (SMC) - BMC and SMC selection depends on resin system, reinforcement, flow length, geometry, charge preparation, and surface requirements.
  - Reinforcements & Fillers Supported: Carbon Fiber - Carbon-fiber compound selection depends on strength, stiffness, conductivity, surface, and molding requirements.
  - Transfer Configurations Supported: Top Transfer, Bottom Transfer, Double Transfer - Top, bottom, and double-transfer options support different feed paths, insert layouts, mold architectures, and handling needs.
  - Supported Performance Requirements: Heat Resistance, Chemical Resistance, Dimensional Stability - Compound selection and qualification determine attainable thermal, chemical, and dimensional performance for the application.
  - Molded Part Weight Range: 0.0002205-50 lb (0.1-22680 g) - Part-weight fit depends on compound, geometry, inserts, charge size, mold layout, and handling requirements.
  - Resin Families Supported: Phenolic, Alkyd, Unsaturated Polyester, Melamine, Epoxy, Vinyl Ester - Material selection is matched to the application's structural, thermal, electrical, chemical, dimensional, and appearance requirements.
  - Dimensional Tolerance Capability: 0.0015 in (0.0381 mm) - Published tolerance capability is subject to compound, geometry, wall section, tooling, datum scheme, and drawing review.
  - Clamp Stroke Range: 12-36 in (304.8-914.4 mm) - Clamp stroke is evaluated with molded-part depth, ejection travel, insert loading, and automation clearance.
  - Press Acting Directions Supported: Up-Acting, Down-Acting - Up-acting and down-acting press options provide flexibility for mold construction, loading, ejection, and automation strategy.
  - Maximum Tie Bar Clearance: 85W x 38H in (2159W x 965.2H mm) - Tie-bar clearance is a mold-installation limit and should be checked with mold orientation, connections, handling access, and platen layout.
  - Production Stages Supported: Prototype, Short Run, High Volume - Programs can progress from prototype or short-run molding to high-volume production with tooling and operating mode selected for each stage.
  - Insert & Encapsulation Capabilities: Insert Molding, Metal Inserts - Molded-in metal inserts are supported, with insert retention, placement, loading, thermal expansion, and shut-off strategy reviewed during DFM.
  - Supported Annual Volume: 1-1000000 parts/year - Programs can range from single-piece needs through annual production; tooling, automation, and release strategy are matched to demand.
  - Runner & Gate Systems Supported: Cold Runner, Gate-Cut - Cold-manifold and gate-cutoff approaches are available where compound behavior, mold construction, part geometry, and production economics support them.
  - Quality Documentation Available: AS9102 First Article Inspection, Production Part Approval Process (PPAP), Statistical Process Control (SPC), Capability Studies, Gage R&R, CMM Inspection, NIST-Traceable Calibration - First-article, PPAP, statistical, capability, measurement-system, CMM, and traceable-calibration support can be matched to program requirements.
  - Ejector Configurations Supported: Bottom Mechanical, Top Mechanical, Bottom Hydraulic, Top Hydraulic - Top and bottom mechanical or hydraulic ejection options can support different part-release, handling, and mold-layout requirements.
  - Platen Size Range: Min: 15W x 15.5H in (381W x 393.7H mm), Max: 72W x 63H in (1829W x 1600H mm) - Platen dimensions describe mold-mounting capacity, not molded-part size; tie-bar clearance, daylight, mold height, and stroke also govern fit.
  - Transfer Stroke Range: 8-18 in (203.2-457.2 mm) - Transfer stroke is selected with transfer-pot design, charge volume, mold architecture, and fill requirements.
  - Process Configurations Supported: Direct Compression, Compression Transfer - Direct compression and compression-transfer routes are available; material form, geometry, inserts, flow requirements, and tooling determine the best fit.
  - Post Bake & Post Cure Capability: Post Bake - Post-bake is available when required by the resin system and performance specification; temperature and duration are application-specific.
  - Clamp Force Range: 50-800 ton (444.8-7117 kN) - Press selection depends on projected area, molding pressure, part geometry, mold configuration, and required process control.
  - Charge Preparation Methods Supported: Preforming - Preforming can support repeatable charge placement and handling where the compound, geometry, and production method benefit from a shaped charge.
  - Mold Operation Modes Supported: Hand-Assembled, Semiautomatic, Automatic - Manual, semiautomatic, and automatic operating modes allow tooling and labor content to be matched to prototype, short-run, and production demand.

### Mold Design & Fabrication

In-house mold design and fabrication keep tool development, maintenance, and production support closely connected to the molding floor. MCM builds and maintains single-cavity, multi-cavity, family, and insert molds with attention to gate design, cold manifolds, rising islands, and other details that affect cycle time, part quality, and cost. That integration helps accelerate prove-out, simplify engineering changes, and reduce launch risk as programs move from prototype to full production.

- Process: Mold Fabrication (Tool & Die)
- Highlights: In-house toolroom supports new molds, maintenance, repair, and engineering changes, Single-cavity, multi-cavity, family, and insert mold programs are all within scope, DFM and engineering input help improve manufacturability before the tool is released, Prototype through production support helps programs scale without changing suppliers
- Subprocesses: Custom Injection Mold Building, Multi-Cavity & Complex Action Molds, Tooling Maintenance & Refurbishment, Prototype Tooling Design & Build, Prototyping
- Specifications:
  - Tooling Delivery Model: In-House Design, In-House Fabrication, In-House Maintenance / Repair - Tool design, fabrication, and maintenance are coordinated with molding, machining, quality, and production teams.
  - Engineering Software Supported: AutoCAD, Fusion 360, SolidWorks, MasterCAM, SpinFire - The published software stack supports CAD, CAM, and design-data review; native-file format and version requirements should be confirmed at kickoff.
  - Tooling Validation Deliverables: Prototype Tool Testing, First Article Inspection, PPAP - Prototype tool testing and first-article or PPAP support are available before production release.
  - Tooling Lifecycle Support: Post-Run Mold Inspection, Mold Maintenance, Mold Repair, Customer Mold Storage - Customer molds can be inspected after production runs, maintained or repaired on site, and held in dedicated storage.
  - Tooling Services Supported: Mold Design, Mold Fabrication, Machining Fixture Design, Machining Fixture Fabrication - In-house support covers new molds and machining fixtures from design through manufacturing implementation.
  - Molding Processes Tooled: Thermoset Injection Molding, Thermoset Compression Molding, Thermoset Transfer Molding - Tooling support is integrated with thermoset injection, compression, and compression-transfer molding programs.
  - Tooling Design Features Supported: Gate Cutoff, Cold Manifold, Rising Islands, Insert Positioning / Shut-Offs - These mold details can be addressed during design to support material flow, insert placement, manufacturability, and production efficiency.
  - Mold & Tooling Configurations Supported: Single-Cavity Mold, Multi-Cavity Mold, Family Mold, Insert Tooling - Configuration is selected against the part family, insert strategy, expected volume, molding process, and qualification plan.

### Engineering, DFM & Prototyping

Engineering services are built to solve manufacturability questions before they become tooling cost or production delay. The team supports mold and fixture design, finite-element analysis, MasterCAM programming, metal-to-plastic conversion, and early DFM review so part geometry, tooling strategy, and downstream operations are aligned up front. Because this work is tied directly to MCM's toolroom and molding teams, design decisions can move quickly into practical manufacturing action.

- Process: Engineering & Design Services
- Highlights: DFM review helps catch molding, tooling, and tolerance issues earlier, Prototype support gives teams a way to test fit, function, and manufacturability before release, FEA supports design decisions where structural or thermal performance matters, Engineering input is tied closely to the in-house tooling and production teams
- Subprocesses: DFM Analysis, Prototype Development (Concept-to-Function), Finite-Element Analysis (FEA) Service
- Specifications:
  - Prototype Methods Supported: Prototype Tool Testing, Production-Intent Molding - Prototype tooling and production-intent molded samples can validate design and tooling decisions before scale-up.
  - Engineering Analysis Targets: Molded Part - Published finite-element analysis support is centered on molded-part evaluation.
  - Engineering Deliverables Available: 3D CAD Model, Tool / Mold Design, Machining Fixture Design, CAM Program, First Article / PPAP Package - Confirm model formats, revision requirements, and the validation package to be included when defining the engineering scope.
  - DFM Review Scope: Material Selection, Tool / Mold Architecture, Gate / Runner Strategy, Insert Integration, Secondary Machining & Finishing, Assembly, Cost Drivers, Process Selection - DFM can address material choice, mold architecture, insert integration, downstream operations, process fit, and cost drivers before tooling release.
  - Quality Documentation Available: First Article Inspection (FAI), Production Part Approval Process (PPAP) - First-article and PPAP support can be included when required for design or production release.
  - Thermoset Prototype Pathways Supported: Prototype Tool Testing, Production-Intent Molded Prototype - Production-intent trials provide a direct path from design validation into molding scale-up.
  - Engineering Software Supported: AutoCAD, Fusion 360, SolidWorks, MasterCAM, SpinFire - The published software stack spans CAD, CAM, and design-data review; native-file and version requirements should be confirmed at kickoff.
  - Thermoset Processes Engineered: Thermoset Injection Molding, Thermoset Compression Molding - Engineering services are connected to in-house thermoset injection and compression molding operations.
  - Engineering Analysis Types Supported: Finite-Element Analysis (FEA) - FEA is available for molded-part evaluation; loads, material data, assumptions, boundary conditions, and acceptance criteria are defined in the project scope.
  - Engineering Services Supported: Design for Manufacturability (DFM), Tool / Mold Design, Fixture Design, Finite-Element Analysis (FEA), Metal-to-Plastic Conversion, New Application Development, CAM Programming, Prototype Development - Engineering support can begin with part and tooling review and continue through prototype validation and manufacturing implementation.
  - Thermoset Conversion Services Supported: Metal-to-Thermoset Conversion, Multi-Part Assembly Consolidation, New Thermoset Application Development - Engineering support includes replacing metal components and consolidating multi-piece assemblies into molded thermoset designs.
  - Engineering Project Stages Supported: Concept / New Application, New Design, Redesign, Prototype, Tooling, Production Launch - Support can start with a new application or redesign and continue through prototype, tooling, and production launch.
  - Thermoset DFM Scope: Resin / Compound Selection, Tooling Architecture, Gate / Runner / Cold-Manifold Strategy, Insert Placement / Shut-Off, Secondary Machining / Assembly - Thermoset DFM can address compound choice, mold and flow strategy, insert shut-offs, and downstream machining or assembly before tooling release.
  - Thermoset Material Selection Scope: Thermoset Resin Selection, Insert-Material Matching - Material selection can consider the thermoset resin, insert material, and target application requirements.

### Quality Assurance & Inspection

Quality assurance is built around documented process control, production visibility, and inspection depth that customers can rely on from launch through repeat runs. MCM pairs ISO 9001:2015 discipline with FAIR, PPAP, real-time SPC, capability studies, traceability, and on-site metrology that includes CMM and optical inspection. The result is stronger qualification support up front and tighter feedback while production is running.

- Process: Inspection & Quality Control
- Highlights: ISO 9001-backed quality system supports documented inspection and release control, AS9102 FAIR and PPAP support fit customers with aerospace or automotive documentation needs, On-site metrology combines CMM, optical inspection, calibration, and capability analysis, SPC and traceability help maintain consistency across repeat production runs
- Subprocesses: First Article Inspection (AS9102), PPAP Documentation & Submission, Statistical Process Control (SPC)
- Specifications:
  - Inspection & Test Methods: Dimensional Inspection, Visual Inspection, Mechanical Testing - Dimensional, visual, and mechanical verification can be matched to critical part features and assembly-integrity requirements.
  - Dimensional Metrology Capabilities: CMM Inspection, Optical Comparator Inspection, Hand Measurement, Custom Gaging - CMM, optical, hand-measurement, and custom-gage methods provide options for programmed layouts and feature-level checks.
  - Quality Reporting Capabilities: Dimensional Layout - Dimensional layouts can document measured results against the defined drawing and acceptance requirements.
  - Calibration Traceability: NIST-Traceable Gage Calibration - Traceable calibration supports auditable measurement results; certificate and interval requirements should be defined for the program.
  - Process & Measurement System Controls: Real-Time SPC, Capability Studies, Gage R&R - Statistical and measurement-system controls help establish process stability and reliable inspection results during production.
  - Quality Documentation Available: AS9102 First Article Inspection, Production Part Approval Process (PPAP) - First-article and PPAP documentation support customer qualification before production release and during applicable program changes.
  - Quality Engineering & Custom Gaging Support: On-Site Six Sigma Black Belt, Custom Inspection Fixture Design & Manufacturing, Custom Hand Gages - In-house quality engineering and custom gaging can support program-specific control plans and inspection strategies.
  - Metrology Equipment & Software: Hexagon Global S SCAN+, Starrett HB400 Optical Comparator, PC-DMIS Programming, Standard Hand Measurement Equipment - The measurement method is selected around part geometry, datum structure, tolerance, accessibility, and reporting requirements.
  - Inspection Stages Supported: Incoming Material Inspection, In-Process Inspection, Last-Piece / Final Inspection, Final Shipping Audit - Inspection coverage can extend from incoming material through final release to support launch and repeat-production control plans.

### Secondary Operations & Assembly

Secondary operations and value-added services extend the molding cell into a more complete finishing workflow, reducing the need to move parts to outside vendors for post-mold work. Machining, drilling, tapping, deflashing, coatings, assembly, and packaging are coordinated with the molding program so critical features, cosmetic requirements, and shipment-ready output stay aligned. For buyers, that means fewer handoffs and better control over the last mile of part completion.

- Process: Secondary Operations & Value-Added Services
- Highlights: Post-mold machining supports drilled, tapped, and tighter-finish part requirements, Deflashing and surface finishing help improve edge quality and appearance, Coating and bonding steps support cosmetic or functional finishing needs, Assembly and packaging options reduce downstream handling for the customer
- Subprocesses: Contract Assembly & Integration, Drilling, Tapping, Deflashing (Rubber), Coating Processes
- Specifications:
  - Bonding, Potting & Post Bake Capabilities: Epoxy Application, Adhesive Bonding / Gluing, Potting, Post Bake - Bonding, potting, and post-bake can be integrated after molding, with chemistry, coverage, and cure requirements selected for the application.
  - Post Mold Machining Operations: CNC Milling, Drilling, Tapping, Reaming, Profiling, Pocketing - These operations add holes, threads, pockets, and profiles after molding when the feature is better completed outside the tool.
  - Coating & Metallization Capabilities: Painting, Coating, Bright Chrome-Like Metallizing, Custom-Color Metallizing - Functional and cosmetic finishes are available, with color, masking, adhesion, and substrate requirements defined for the part.
  - Deflashing & Surface Preparation: Deflashing, Tumbling, Jet Blasting, Deburring - These operations support flash removal, edge cleanup, and surface preparation before coating, inspection, or assembly.
  - Supported Annual Volume: 1-1000000 parts/year - Finishing and machining support spans single-part work through annual production programs; assembly capacity is quoted separately.
  - Machining Configurations Supported: 4-Axis CNC, Automated Machining, At-Press Machining - Automated and at-press machining can reduce handling between molding and final inspection; fixtures and tolerances remain part-specific.
  - Special Post Processing Capabilities: Hydrogen Embrittlement Relief, Annealing - These special processes are available within the value-added scope; applicable standards and processing location should be confirmed during quotation.
  - Assembly Verification Methods: Mechanical Testing, Dimensional Inspection, Visual Inspection - Completed assemblies can be checked for mechanical integrity and dimensional and visual conformance before release.
  - Order & Delivery Programs: Custom Orders, Blanket Orders, Just-in-Time Programs - Scheduled releases and repeat-order programs are available; cadence and inventory commitments are defined during quotation.
  - Secondary Service Delivery Model: In-House Machining, In-House Finishing - Core machining and finishing operations can be integrated in house to reduce handoffs between molding, secondary work, and inspection.
  - Packaging Services: Custom Packaging, Product Packaging, Product Repackaging, Cleaned & Packed at Press - Packaging can be integrated with production to reduce downstream handling and prepare parts or assemblies for delivery.
  - Assembly & Component Installation: Mechanical Assembly, Box-Build Assembly, Subassembly, Multi-Piece Assembly, Post-Applied Metal Inserts, Feet / Clip / Decal Installation - Molded parts, inserts, contacts, and supplied components can be combined into customer-ready subassemblies or box builds.

## Certifications

- CAGE Code Registration (Type: Registration; Authority: U.S. Defense Logistics Agency (DLA); Status: Needs info; Scope: To provide; URL: https://cage.dla.mil)
- Cybersecurity Maturity Model Certification (CMMC) Level 1 (Type: Compliance; Authority: U.S. DoD CIO / Cyber AB; Status: Needs info; Scope: To provide.; URL: https://dodcio.defense.gov/CMMC)
- ISO 9001:2015 (Type: Certification; Authority: International Organization for Standardization (ISO); Status: Active; Scope: Manufacture and assembly of thermoset plastic components at 1315 South 41st Street, Manitowoc, Wisconsin 54220, USA.; Issue date: 2024-06-24; Expiration date: 2027-06-23; URL: https://www.iso.org/iso-9001-quality-management.html)
- UL Fabricated Parts Recognition (QMMY2) (Type: Certification; Authority: UL Solutions; Status: Needs info; Scope: Company-declared UL QMMY2 recognition for material traceability of fabricated thermoset plastic parts; current recognition file and status have not been independently verified.; URL: https://code-authorities.ul.com/wp-content/uploads/sites/2/2017/01/QMMY2-The-UL-Fabricated-Parts-Program.pdf)
- ITAR Compliance (Self-Declared) (Type: Compliance; Authority: Supplier attestation; regulatory framework administered by the U.S. Department of State, Directorate of Defense Trade Controls (DDTC); Status: Needs info; Scope: MCM states “ITAR Compliant” on its official Quality Assurance page. This is a company-declared compliance claim; DDTC registration and independent verification are not established by that statement.; URL: https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M)

## Industries Served

- Aerospace & Defense: mcmusa (MCM Composites, LLC) supplies thermoset molded internal components and composite parts used within civilian, commercial, and military aircraft cabins, tying its thermoset compression and injection molding capabilities directly to aerospace applications.
- Appliances: mcmusa manufactures thermoset composite parts—motor housings, control panels, handles, trims and other injection- and compression-molded components—explicitly for appliance applications.
- Automotive & Transportation: mcmusa provides thermoset molding solutions (including carbon-fiber composites) for lightweight and high-strength components used in automotive manufacturing.
- Electronics & Semiconductors: mcmusa produces thermoset-molded electrical and electromechanical components—connector housings, switchgear parts, insulators, and related assemblies—linking its molding capabilities to electronics and electrical equipment applications.
- Food & Beverage Processing: mcmusa manufactures food-grade thermoset injection-molded parts (e.g., mixer chambers) and assemblies used in food & beverage processing equipment, including sanitary, high-temperature-resistant components.
- Medical Devices & Healthcare Equipment: mcmusa supplies thermoset plastic components and housings for medical and pharmaceutical equipment, leveraging compression and injection molding for lightweight, durable casings and parts used in medical devices.
- Oil, Gas & Petrochemical: Upstream exploration and drilling, midstream transport, refining, and integrated petrochemical processing. Designs must withstand high pressure, corrosive media, and hazardous environments while meeting API/ASME and IECEx/ATEX safety standards across global operations.
- Power Distribution & Switchgear: Low- and medium-voltage switchgear, busbars, panelboards, and protective devices that route electrical power from generation or transformers to end-use loads. Fabrication involves precision sheet-metal enclosures, copper bus machining, and assembly to UL 1558 / IEC 62271 for arc-flash mitigation and operator safety.

## Facilities

### MCM Composites, LLC

MCM Composites, LLC operates a thermoset injection molding manufacturing facility producing precision parts from phenolics, alkyds, polyester (BMC and SMC), and carbon-fiber compounds, with part weights from 0.1 g to 10 lbs. On-site capabilities include a custom mold shop, in-house tooling and tool repair, a quality lab, a cool room for raw materials and molds, and electrical and hydraulic injection presses ranging from 75 to 500 tons.

- Type: manufacturing_facility
- Headquarters: Yes
- Email: info@mcmusa.net
- Phone: +1 920-684-7800
- Address: 1315 South 41st Street, Manitowoc, Wisconsin 54220, United States

## Verification Status

- Business Entity: Verified 3/2/2026
- Technical Capabilities: Verified 10/5/2026
- Locations & Facilities: Verified 3/2/2026
- Reviews & Ratings: Not yet verified
- MFR.ID Created: 3/2/2026
- Last Updated: 10/5/2026