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POLYDAMP® Low Permeability Foam (LP-18)

1 of 7 products in this brand
POLYDAMP® Low Permeability Foam (LP-18) is a soft, ether-based polyurethane foam with low permeability but quick recovery. It is an excellent low-cost alternative to traditional closed cell foams in applications where moisture and air need to be retained.

Density: 27.36 - 33.44 kg/m³

Chemical Family: Polyurethanes (PU)

End Uses: Gaskets, Radiator Seals, Seals, Transportation Seal

Physical Form: Foam

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Product Type

Features & Benefits

Ready-to-Use Product Features
Features
  • Low Air Permeability: restriction to Air Flow (5 psig to 1.5 psig) greater than 30 minutes in “Paint Pot”test.
  • Meets the requirements of Chrysler specifications MS-AY326 and General Motors specificationGM251M Type 1.
  • Meets the requirements of Ford specification ESA-M4D200-B (with exception to CFD 65%)
  • Meets the requirements of Toyota specification TSL6712G-1A-40-N

Applications & Uses

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Tensile Strength (Typical)min. 10psi-
Elongationmin. 125%-
Densitymin. 1.9 ± 0.19lb/cu.ft.
Tear Resistancemin. 1.5pli-
Compression Force Deflection (25% Deflection)min. 0.21psi-
Compression Force Deflection (50% Deflection)min. 0.3psi-
Retention of Tensile Strength (After 5 Hours, 120° C, Steam Autoclave)min. 70%-

Technical Details & Test Data

Flammability Characteristics

Meets the requirements of Federal Motor Vehicle Safety Standard No. 302. FMVSS 302 is a test procedure that specifies the burn resistance requirements for material used in the occupant compartments of motor vehicles.