Colvin-friedmancompany

Custom Foam Gaskets

Engineered Solutions for Sealing, Compression, and Environmental Protection

Colvin-Friedman manufactures custom foam gaskets that seal, compress, and protect assemblies across multiple industries. Every gasket is precision die-cut to your specifications with controlled tolerances that hold from prototyperuns through high-volume production.

Based in Petaluma, California, we’ve cut foam gaskets for over 70 years and have zero recorded quality rejections.

or call Vice President Josh Rodman at (707) 769-4488

Where Custom Foam Gaskets Deliver Function

The following applications illustrate where custom foam gaskets deliver measurable functional value:

Application Functional Requirement + Colvin-Friedman Solution
Electronics Enclosures Block moisture ingress or provide EMI shielding at mechanical seams. We match gasket design to required compression behavior and conductivity.
EV Battery Modules Manage compression and thermal interface between module layers. We convert thermal pads, compressible foams, and layered constructions with embedded adhesive.
Lighting Housings Maintain the seal under outdoor exposure and thermal cycling. We convert closed-cell materials that resist moisture intrusion and hold profile over time.
Medical Device Housings Create controlled seals or compliant spacers within diagnostic equipment. We convert medical-grade foams with stable adhesive backing.
Industrial Control Panels Provide sealing at interface points. We cut to spec around irregular geometries and supply adhesive-backed gaskets for fast installation.
Aerospace Interiors Absorb vibration and control compression set under load. Lightweight gaskets are cut to consistent thicknesses for manual or automated installation.

Foam Materials We Convert for Custom
Gasket Applications

These foam materials are commonly used in custom gasket applications, with defined cutting constraints.

Foam Type Where It's Used Cutting Constraints
Neoprene Foam Compression seals for outdoor enclosures; general-purpose gasketing resistant to oil Susceptible to shape loss under pressure; blade geometry adjusted for material hardness
EPDM Foam Environmental seals in assemblies exposed to UV and temperature extremes Can deform under cutting pressure; blade settings calibrated to preserve shape
Polyethylene Foam (Closed-Cell) Moisture-resistant gaskets in lighting and electronics May rebound after cutting if not stabilized; test cuts characterize recovery behavior
Polyurethane Foam (Open-Cell) Low-pressure gasketing in thin-format builds Thick sections collapse under press pressure; edge definition requires support
Silicone Foam Temperature and chemical-resistant seals for aerospace and medical applications Flexible material requires controlled blade depth to prevent incomplete cuts
EVA Foam Shock absorption in sports equipment and protective packaging Requires sharp dies to maintain clean edges; valued for UV resistance

Part Formats and Delivery Methods

  • Kiss-Cut on Liner: Supplied for peel-and-place installation. Liner stays intact until application.
  • Pull-Tab or Slit-Liner: Designed for manual separation. Tab or slit allows fast release.
  • Multi-Layer Stackups: Includes adhesives or films bonded and cut in register.
  • Sheeted Parts: Delivered flat or nested for hand assembly.
  • Slit Rolls & Webs: Used for sealing strips. Tension and width held throughout the run.

How We Control Dimensional Accuracy in Foam Gasket Conversion

Control Blade Pressure to Prevent Edge Distortion

  • Issue EPDM and neoprene can deform under cutting pressure, causing overtravel that affects part fit.
  • Solutionr We adjust blade geometry and press dwell based on material hardness and thickness..

Stabilize Foam Rebound to Maintain Dimensional Accuracy

  • Issue Foams can recover or collapse unpredictably after cutting, leading to undersized parts..
  • Solution Test cuts characterize rebound. Press settings are adjusted to hold shape without overcompression.

Prevent Adhesive Transfer in Kiss-Cut Gaskets

  • Issue Adhesives can stretch during cutting or resist clean release from the liner.
  • Solution We set kiss-cut depth based on liner construction and adhesive mass. Release performance is verified before production.

Maintain Stack Registration During Laminated Conversion

  • Issue Thin films may shift under tension, resulting in misalignment between functional layers.
  • Solution We maintain tension to keep the stack layers stable and confirm registration accuracy during setup.

Why Engineering Teams Choose
Colvin-Friedman

Colvin-Friedman supports engineers by addressing the practical realities of foam conversion:

Common Oversight

  • Specifying foam material without verifying cut behavior
  • Releasing drawings with dimensional tolerance conflicts
  • Assuming the converter will select adhesive without impact on fit
  • Delivering stackup designs without accounting for cut alignment

What Colvin-Friedman Delivers

  • We review how the material performs during cutting and confirm adhesive fit before production.
  • Our team checks that the part layout and dimensions will hold across volume.
  • We ask how the part will be installed and then recommend an adhesive and liner that match.
  • We confirm how the build behaves at scale to prevent thickness variation across the part.

Our Process for Custom Foam Gasket Manufacturing

01

Application Review (1-3 Days)

We gather sealing requirements, compression targets, and installation methods. Material and adhesive recommendations are confirmed

02

Design and Tooling (2-7 Days)

CAD specialists create die layouts optimized for material yield. Dies are custom-tooled using high-grade steel, with blade geometry matched to foam type.

03

First Article Approval

Sample parts are inspected for dimensional accuracy and adhesive performance. Test cuts verify compression behavior. Clients receive samples for fit testing.

04

Production and Quality Control

Tooling is calibrated for each material. Kiss-cut depth is held within ±0.001″ where required. Parts are spot-checked during production for edge quality and profile accuracy.

05

Supply Chain Integration

We integrate into your production schedule with blanket orders and scheduled releases. Our 99.99% on-time delivery rate eliminates the need for emergency orders.

Dimensional Capabilities

We offer multiple cutting methods to meet different dimensional and production requirements:

Capability Rotary Die Cutting Flatbed Die Cutting
Maximum Width 16 inches 40 inches
Maximum Thickness 0.015 inches (varies by material) 0.5 inches (material dependent)
Tolerance Level ±0.005 inches ±0.010 inches
Production Capacity Up to 40,000 units/hour 2,000-4,000 parts/hour
Average Lead Time 3 weeks 3 weeks

Start Your Custom Foam Gasket Quote

Colvin-Friedman delivers precision foam gaskets with predictable lead times and zero-defect quality. Contact Vice President Josh Rodman directly at (707) 769-4488 or upload your file to start your quote.

Frequently Asked Questions

We convert neoprene, EPDM, polyethylene, polyurethane, silicone, and EVA. We also handle
specialty foams, including medical-grade formulations. Send us the material spec, and we’ll confirm manufacturability.

Yes. We laminate acrylic and silicone pressure-sensitive adhesives to foam substrates before cutting. Adhesive selection depends on your surface material and exposure to temperature. We can supply kiss-cut parts on liner or adhesive-backed gaskets sheeted for hand assembly.

Standard tolerances range from ±0.010″ to ±0.020″ depending on foam type. Thinner materials cut with rotary dies can hold ±0.005″ on critical dimensions.

Yes. We cut prototype quantities to verify fit and material performance before committing to production tooling. Prototypes allow you to test compression behavior and installation method before scaling.

Yes. We integrate into your production schedule with blanket orders. Our supply chain integration ensures you maintain inventory without carrying excess stock.