CAPABILITIES / APPLICATIONS / SEALING & GASKETS

Sealing & Gaskets

Keep moisture, dust, air, and contaminants where they belong. PAX engineers custom closed-cell foams, silicone sponge, and die-cut gaskets built to your enclosure's CAD.

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Recommended Materials

Sealing-grade foams & sponge

A short list of the materials we run most often for sealing and gasket work. We’ll spec the right grade for your environment, durometer, and compression-set requirements.

Silicone Sponge

Closed-cell · ZZ-R-765 · −100°F to +500°F · medium compression set

EPDM Closed-Cell

Weather, ozone, UV stable · low water absorption · HVAC standard

Neoprene Closed-Cell

Oil & abrasion resistance · medium compression · industrial baseline

Closed-Cell PE (Volara)

Lightweight · cost-effective · excellent dust seal · 0.060″–0.500″

PORON Urethane

High recovery · long-term load retention · electronics-grade

Solid Silicone

Custom durometer 30A–70A · FDA & medical grades available

Case Studies

How sealing parts ship from PAX

Two representative engagements showing the kind of problem PAX is built to solve. Real customer details abstracted.

Medical Devices

Class II ventilator enclosure seal

ProblemRepeated autoclave-cycle failures: customer’s incumbent gasket compressed permanently and leaked during sterilization, blocking IPX4 certification.

SolutionClosed-cell silicone sponge die-cut to enclosure CAD with PSA backing pre-applied. PAX’s materials engineer specified a 25% compression-set grade rated for repeated 134°C cycles.

MaterialsSilicone sponge (ZZ-R-765 medium) · 3M 9472LE PSA backing

✓IPX4 passed · assembly time −30%

Industrial Equipment

Pump motor flange gasket failure

ProblemField-deployed pump fleet experiencing premature nitrile gasket failure under combined oil + petrochemical exposure, driving unplanned maintenance every 6–9 months.

SolutionSwitched to fluorosilicone solid die-cut to existing flange profile. PAX prototyped 4 durometers in 5 business days; customer field-tested and selected 60A.

MaterialsFluorosilicone solid 60A · steel-rule tooling

✓5× service life · zero unplanned MX

Related Capabilities

How we build sealing parts

→Flatbed Die CuttingSteel-rule and engraved dies for clean repeatable gasket geometries. →Rotary Die CuttingHigh-volume continuous-feed conversion with PSA-backed roll stock. →Adhesive LaminationPre-applied PSA backing or composite seal+barrier stacks. →Precision SlittingEngineered widths for strip, weatherstripping, and seal stock.

Industries Served

Where sealing parts ship

Medical DevicesElectronics EnclosuresIndustrial EquipmentAutomotiveHVACAerospaceOutdoor / Telecom

LET'S TALK

Have a Sealing & Gaskets project?

Send a drawing, a sample, or just a description of the problem. We'll help you pick the material and quote the job.

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