Foams & Elastomers
Closed-cell elastomeric foams, PORON microcellular PU, structural core foams, and machinable tooling foams for sealing, cushioning, vibration damping, and composite applications.
Converting Options
Overview
ALS Tape supplies and converts a range of foam and elastomer materials for sealing, cushioning, thermal insulation, vibration damping, and structural composite applications. Closed-cell elastomeric foams include EPDM, neoprene, nitrile, and PVC blends, providing moisture resistance, thermal and acoustic insulation, and UV resistance for automotive, HVAC, and electronics enclosure sealing. PORON microcellular polyurethane foam from Rogers Corporation delivers precision compressible sealing with consistent compression set resistance over millions of cycles, suited to electronics gaskets and medical device cushioning. Structural core foams including cross-linked PVC and PET foam are used in composite sandwich structures where lightweight, high-stiffness panels are required for marine, aerospace, and transportation applications. Machinable syntactic foams and tooling boards support CNC machining to tight tolerances for prototype tooling and composite mold applications.
Material Types
Closed-cell EPDM foam for outdoor sealing and thermal insulation
Closed-cell neoprene and nitrile foam for oil-resistant sealing
PORON microcellular PU foam for precision electronics and medical sealing
Cross-linked PVC structural foam for composite sandwich panels
Syntactic foam and tooling board for CNC-machinable tooling applications
Key Properties
Density range: 2 lb/ft³ to 40 lb/ft³ depending on foam type
Temperature resistance: -60°C to 200°C depending on elastomer chemistry
Closed-cell construction: moisture-resistant and dimensionally stable
Available forms: sheet, roll, slit strip, and precision die-cut parts
Applications
Electronics enclosure and panel gasket sealing
Automotive door, window, and body seam sealing
HVAC duct and equipment insulation and sealing
Vibration damping pads in industrial and appliance assemblies
Composite sandwich panel core for marine and transportation structures
Related Products
FAQ
What makes PORON foam different from standard polyurethane foam?
PORON microcellular PU has a very fine, uniform cell structure that gives it consistent compression set resistance over millions of cycles. Standard PU foam loses recovery performance under repeated compression, making PORON the preferred choice for precision sealing in electronics and medical devices.
When is closed-cell foam required over open-cell foam?
Closed-cell foam is required when the application needs moisture resistance, air or gas sealing, and dimensional stability. Open-cell foam is used primarily for acoustic absorption and low-resistance air flow applications.
Can foam materials be supplied with adhesive backing?
Yes. Foam materials can be laminated with pressure sensitive adhesive on one or both sides during converting, enabling direct adhesive mounting without additional bonding materials.
Material Inquiry
Foams & Elastomers
Closed-cell elastomeric foams, PORON microcellular PU, structural core foams, and machinable tooling foams for sealing, cushioning, vibration damping, and composite applications.