In the process of producing stainless steel protective film products, we are currently configuring the substrate with a special formula, and using polyacrylic acid (ester) resin as the main material of the pressure sensitive adhesive, and then coating, slitting and packaging with specific additives. And other processes are made. The flexibility of the protective film is good, the "wetting" speed on the surface of the applied profile is fast, and the rate of increase in peeling strength after the bonding is low. The pressure sensitive adhesive has good stability and does not adversely affect the surface to be attached.
The use of stainless steel protective film has achieved good protection for stainless steel products, preventing adverse damage during transportation, storage, processing and installation. The peel strength of the product is 50-180g/cm; (can be customized according to the specific conditions of the profile). Product color types usually include: transparent, white (milk white), blue, black and white. Colors can also be determined based on user requirements or templates.
In the process of producing stainless steel protective film, in addition to the main material should be strictly selected, at the same time add special additives through the process of coating, slitting, packaging, etc.; the softness of the protective film is good, the surface is attached The "wetting" speed is fast; the peeling strength increase rate after the sticking is low; the pressure sensitive adhesive has good stability and does not have any adverse effect on the surface to be attached.
In the processing of stainless steel protective film, one of the processes is called curing, which can also be called curing. The composite film is put into the drying room (aging room) to crosslink the main agent and curing agent of the polyurethane adhesive. And the process of interaction by the surface of the composite substrate. The main purpose of curing is to make the main agent and curing agent fully react for a certain period of time to achieve the best composite strength. The second is to remove low boiling residual solvents such as ethyl acetate.
In general, in the production of stainless steel protective film, the control of the curing process mainly includes the control of the curing temperature and the curing time. The curing temperature and the curing time are determined by the properties of the adhesive used and the final performance requirements of the product. Different binder types have different curing temperatures and times. The curing temperature is too low, below 20 °C, the reaction of the binder is very slow; the curing temperature is too high, the substrate film additive precipitates, affecting the performance of the composite film and increasing the odor. If the curing time is too long, the performance of the composite film will also be affected and increased. Odor, which is mainly caused by the precipitation of processing aids in polyethylene film.
In the processing of stainless steel protective film, the relevant factors that should be considered in the control of curing conditions are: if the heat resistance of the raw material is good, the shrinkage temperature is high, the curing temperature can be increased; the curing time of the product with high rubberizing amount is lengthened; The curing time of the rolled product can be appropriately reduced; the product with longitudinal ribs can be lengthened for a longer period of time.https://www.pe-protectionfilm.com/