Foglio isolante in gomma, nero

The designation "Sh-A" or, alternatively, "Sh-D" stands for Shore Hardness, which is a scale of hardness for elastomers and plastics. In the case of softer, rubber type materials, the A scale is used, while for harder materials the D scale. The test procedure, which is standardized per DIN 53505 and DIN 7868 (German Industry Norm), consists of a tempered steel indenter, whose shape varies for the A and D scale tests, being pressed into a material with a specific force whereby the amount of penetration is measured. The measuring scale goes from 0 (complete penetration) to 100 (no penetration) - the higher the number, the harder the substance.

What is EPDM? Ethylene propylene dien rubber is a type of synthetic rubber that has outstanding heat, ozone, weather and moisture resistance. Its temperature resistance goes as high as approimately 130 °C (if anything, even somewhat higher) and as low as approximately –30° C, whereby even at such low temperatures it remains flexible - much more flexible than other elastomers!

EPDM foils are primarily used for sealing and blocking purposes. It is the material used for making seals for washing machines and automobiles but also for use as a quality long-term pond liner or as a hose material for alkaline fluids (good alkaline resistance but not resistant to oils and fuels) and water. This black foil is primarily manufactured to serve as an exterior sealing membrane for interstices in constructions; to be exact, for sealing windows, doors and façade connections. Its most remarkable feature is that it is waterproof but nonetheless still able to allow water vapor to diffuse through it.

This sealing foil stretches well – not as well, it must be said, as LATEX FILM but, then, clearly better than SOLID RUBBER GASKET SHEET that is one millimetre thick – and is quite tearproof to boot. The surface of the foil is somewhat rough – that is what is meant by “fabric-textured” in the product description above.

Because of its flexibility and elasticity, its impermeability to water and its handy surface texture, this foil can also be used as a handicrafts material for making any number of things including bags, portfolios or cases. This elastic sealing foil can be easily cut with a scissors or a blade. Gluing work can be done with ASSEMBLY ADHESIVE (WEICON FLEX), SUPER GLUE or CONTACT GLUE.