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Advantages and Disadvantages of Silicone Rubber Foam Weather Stripping and EPDM Rubber Foam Weather Stripping

Jan 12, 2019

  First of all, we want to say that silicone rubber foam strip belongs to extruded silica gel. Because it resembles sponge, it is called foamed silica gel strip, or the characteristics of sponge silica gel strip silicone rubber foam strip.

  1. Silica gel material has good sealing performance, high temperature and weather resistance, anti-aging and anti-knock, anti-shock and water-proof, and can fit all kinds of smooth surface materials.

  2. The backing tape is self-adhesive and has better sealing property. The high temperature resistant adhesive will not fall off for a long time. Environmental protection, safety, good insulation, high temperature resistance, small compression deformation, strong resilience, non-toxic.

  3. The foamed silicone rubber foams evenly, the density can reach 0.25-0.85 g/cm 3, and the Shaw hardness is 8-30A. Environmental friendly, non-toxic, odorless, good resilience, good flexibility, no bubbles and no pore on the surface. High strength, long service life, environmental protection of product insulation, high and low temperature resistance, compression resistance, acid and alkali aging resistance, ultraviolet resistance.

  4. Smooth surface and uniform foaming density

  5. Good surface is not sticky. Good air permeability

  6. Using 100% high quality silicone collagen material, and after strict testing, it meets the environmental protection standards.

  7. High temperature resistance: - 70 degrees - 300 degrees

  8. Heat resistance: Silicone rubber has much better heat resistance than ordinary rubber. It can be used almost forever at 150 degrees without performance change. It can be used continuously for 10,000 hours at 200 degrees. It can also be used for a period of time at 350 degrees.

  9. Weatherability: Ordinary rubber degrades rapidly under ozone generated by corona discharge, while silicone rubber is not affected by ozone. In addition, the physical properties of ultraviolet radiation and other climatic conditions change only slightly over a long period of time.

  10. Anti-aging, anti-corrosion, silica gel itself has a strong inert silicone rubber foam strip use:.

  High dimensional accuracy. Foam sealing strip

  1. Lightweight, strong and tough, light and strong toughness

  2. Low thermal insulation and conductivity, with superior thermal insulation

  3. Non-absorbent has independent bubble structure and low absorbency.

  4. Buffering and impact resistance, which can be used as buffer material

  5. Weatherability and weatherability. EPDM sponge can pass ozone resistance test (50pphm*40). C*72 hours)

  1. Packaging materials (cushioning materials for transport of precision machinery, appliances, furniture, glass, etc., protective cushioning materials for small electrical appliances, etc.)

  2, civil engineering.

  Electronics, furniture equipment, toys, hardware, equipment, sports goods, audio, lighting, machinery, automobiles, bottle and tank seals, building curtain wall seals and other industries use: sponge seals, foam seals, the advantages of foam seals is to use the characteristics of certain materials through processing to make its internal air hole seals. It is divided into EPDM foam sealing strip, silica gel foam sealing strip and PU foam sealing strip. The foamed sealing strip is formed by microwave vulcanization process at one time. Its surface is smooth and beautiful, and there are no marks. It has good elasticity and compressive deformation resistance, and excellent aging resistance. Flame retardant performance is excellent. It is used for supporting electrical appliances with low smoke and low toxicity. The product has stable performance in buildings (large slab filling materials for residential buildings, door and window sealing materials for residential buildings, shrinkage prevention for concrete etc.).

  Then we want to talk about the characteristics and advantages of EPDM rubber foam strip. First of all, EPDM is used as raw material, with smooth and meticulous surface, good resilience, uniform foam, first-class waterproof performance, ozone resistance, aging resistance and solvent resistance. EPDM/rubber/foam series products: 1. Polyethylene open-cell foamed rubber expansion joint plate (seam filling plate. seam filling plate).

  1. Product characteristics of EPDM rubber foam strip: 1. Light bulk density, high stretching strength, no water absorption (instead of traditional three-oil four-felt, asphalt fir board and other materials). The product is environmentally friendly, easy to construct, seepage-proof, leak-proof and water-proof.

  2 Corrosion resistance, aging resistance, high and low temperature + 80 ~45 ~C without flowing, no deformation, no brittle crack, long service life.

  3. It has an independent opening bubble structure. The appearance of the special joint plate is uniform distribution of honeycomb-shaped holes. It can be closely bonded with cement/sealant without hairing. It adapts to the change of natural expansion and shrinkage, and enhances the expansion and sealing effect of the joint seal.

  4. EPDM rubber foam products can be widely used in machinery, doors and windows, curtain walls, rivers, dams, ports, wharfs, underground boreholes, water conservancy and power, airports, bridges and other concrete waterproof joint projects.

  5. The product can be used in various ways according to the circumstances when it is being constructed. Longitudinal seals, horizontal seals and other special seams are used.