Double-sided coated foam tape is coated with pressure-sensitive adhesive on both sides of polyurethane, polyethylene, neoprene, PVC and natural rubber foam. foam tapes They are used in the construction market. thing.
One-sided coated foam tape is made of polyurethane, PVC, chloroprene rubber as the substrate of the foam or other foam single-sided coated pressure-sensitive adhesive in the activities of the housing gasket, water stop, sound insulation and absorption of vibration Application When used in a gasket, it is possible to weaken noise and absorb vibration between the roof nail, foam tapes the heating tube and the vertical plate. foam tapes The movable housing industry mainly uses single-sided coated tape around the window frame and the door. In this form of application, it competes with felt, plastic and metal strips, and tube gaskets.
Polyurethane foam is the only kind of non-closed pore structure of the foam. PVC foam can prevent water, dust or gas from passing at 25% of the minimum compression set, foam tapes while the polyurethane requires a higher compression set and poor weather resistance. The price of the single coated tape depends on the size and shape. / 2inXl / 4in PVC or polyurethane tape is about 5-8 cents per foot. foam tapes Foam strips with EPDM rubber are the most expensive.
The impregnated foam tape is a polyester-based polyurethane foam impregnated with asphalt, which accounts for 55% to 90% of the material's mass. A layer of coating is formed on the thin wall of the foam structure without filling the cell with an average density of 10-111bs / ft3. When the tape is pressed in the seam, the cell is coated with the asphalt. The interface is excellent in water impermeability, and in order to achieve a watertight seal, foam tapes it is required to compress more than 25% of the original size, such as Polytite, etc.foam tapes The patent has been obtained. Table 2 summarizes the physical properties of the impregnated foam tape.
1, before the paste before the removal of adhesive objects on the surface of the dust, foam tapes oil traces, and keep dry (do not even rainy days in the case of wet wall paste). Such as for the paste mirror, it is recommended to use alcohol to clean the adhesive surface.
2, paste the working temperature should not be less than 10 ℃, foam tapes or you can use the appropriate hair dryer adhesive tape and paste the surface,
3, pressure-sensitive adhesive tape in the paste after 24 hours to play the best effect (when the adhesive tape to speak as much as possible), foam tapes so paste the vertical load-bearing objects such as mirror, etc., both sides are already in the case of adhesion 24 hours. If there is no such conditions, foam tapes vertical adhesion within 24 hours, to support the load-bearing objects.