It's made of atacic polypropylene,silicification polypropylene fiber silk and polypropylene piece,best choice for doors,windows.

-there are 1250 radix floss per square centimeter density,ensure excellent airproof

-the silicification processing polypropylene fiber silk and the central film design got up completely to the waterproof seal performance

-the unique design of soleplate protection wing reinforce the supporting hair's strength,which prevent fine hair from bending

-treated by silicon oil,fine hair possesses water-resistance,anti-aging,anti-abrasion and anti-UV properities

-soleplate is made from random PP with excellent aging and low temperature brieeleness performance

More information pls contact us,thank you!