Features of EPDM
Product DetailsEPDM material properties Product features of EPDM rubber foam sponge: The product is divided into closed-cell and open-cell foam. The inner cell of the closed-cell foam material is separated from the cell by a wall film, which is not connected to each other. It is an independent cell structure, and the main It is a small cell-like or extremely small micro-cell; the internal cells of the open-cell foam material are interconnected with each other, and are also connected with the outer skin, which is a non-independent cell structure, mainly larger cells or coarse holes. Closed cell material: excellent weather resistance; small bulk density, high tear strength; low thermal conductivity; good shock absorption. Opening material: excellent weather resistance; high temperature resistance, good low temperature resistance; heat preservation, good heat insulation; polar oil resistance, chemical resistance; superior compression water resistance, good sound absorption. Closed-cell materials: used for transportation packaging of precision instruments, medical equipment, vehicle door and window seals, engine sound-absorbing and shock-absorbing materials; air-conditioning, refrigerator sealing and heat-insulating materials. Sound-absorbing materials for walls, vapor-proof and waterproof packaging for electronic products. Opening material: As a high-grade thermal insulation, shock absorption, sound absorption material, it is used in automobiles, air conditioners, electronics, audio buildings, roads, bridges and other fields. EPDM EPDM rubber has good weather resistance, temperature resistance, aging resistance, damping sealing and other characteristics, and can be used in central air conditioning, refrigeration unit pipeline insulation, buffer pads, sound absorption and noise reduction and other fields.Features of EPDM1. High resistance to aging A Excellent ozone resistance - EPDM is known as "non-cracking rubber", and has the best ozone resistance among general-purpose rubbers. B Better thermal stability. C Excellent aging resistance - can be used for a long time at 130 ℃, and can be used intermittently or short-term at 150 ℃ or higher temperature. D Excellent weather resistance - refers to the aging of the combined factors of light, heat, freezing, wind, rain, ozone and oxygen in the natural environment. 2. Excellent chemical resistance: Due to the chemical stability and non-polarity of EPDM itself, it does not react chemically with most chemicals, and is incompatible or has little compatibility with polar substances. It is resistant to alcohols, acids (formic acid, acetic acid), strong bases, oxidants (such as H2O2, HCLO, etc.), detergents, animal and vegetable oils, ketones, certain fats, and hydrazine. 3. Excellent water resistance, overheating resistance and water vapor resistance: water is a strong polar substance, and EPDM rubber is a kind of macromolecular alkanehydrazine with "hydrophobicity". There is no chemical interaction between the two, so it has excellent water resistance, overheating resistance and water vapor resistance.