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What is a soft and hard co-extrusion strip?
Product introduction:
Soft and hard co-extruded magnetic strips, the formula comes from Canada, which is extremely cold, the destructive test is in the refrigerator -10 ℃ for 1000 hours and above 60 ℃ for 1000 hours, and the frost damage and high temperature resistance tests are carried out to confirm the magnetic strip. It is the best PVC tape in China, its heat resistance and low temperature resistance exceed the industry standard, UV resistance and long service life.
Features:
Transparent and natural color, adding anti-UV and anti-aging additives to ensure long-term use without discoloration; high toughness, impact resistance, minimize damage during installation and process; optimal matching of soft and hard materials; professional molds Design custom products with precise fit and size coordination. Transparent and natural color, adding anti-UV and anti-aging additives to ensure long-term use without discoloration; high toughness, impact resistance, minimize damage during installation and process; optimal matching of soft and hard materials; professional molds Design custom products with precise fit and size coordination.
product testing:
Observe whether the surface of the rubber strip is smooth, free of impurities, no bubbles, no sawtooth marks, and the hand feels fine and soft. The highly filled soft PVC or EPDM sealing strip has poor elasticity, rough surface and large deformation. It can be stretched moderately by hand without breaking, and it can recover quickly after being bent and released. The high-fill soft PVC sealing strip has poor strength, cracks when it is folded, and breaks when it is pulled. Smell with your nose to feel for the presence or absence of aromatic hydrocarbon odors. Some PVC sealing strips not only use wastes of different quality, but also excessively add fillers and low-molecular-weight aromatic oils or heavy oil refining residues with complex components as plasticizer substitutes in the formula. This product has a large odor when it first leaves the factory. As time goes by, the component volatilizes more, and the sealing strip becomes hard and brittle quickly, which makes the rubber strip shrink, loosen, and fall off. It is easy to crack and age, and lose its sealing effect. The yellowing of the profiles can also be caused by the migration of aromatic or heavy oils.