It must hold on through cutting, bending, transport and installation - and then come off cleanly, leaving nothing behind. Get the adhesion wrong in either direction and the customer pays for it.
Surface protection film is a temporary, self-adhesive polyethylene film applied to a finished surface to guard it during fabrication, handling, storage, transport and installation. It is removed at the end of the process and discarded.
The construction is simple - a polyethylene carrier with a pressure-sensitive acrylic adhesive on one side - but the engineering sits entirely in the adhesive. It has to be strong enough to survive the process and weak enough to release without residue.
This is the whole product. Everything else is packaging. Adhesion is chosen against two things: how smooth or textured the surface is, and how aggressive the process is.
The trap: buyers order by price per kilo and get a mid-tack grade for everything. It over-sticks on gloss and under-sticks on texture, and both failures look like a film problem when they are a specification problem.
The most common complaint in this category. A correctly formulated acrylic adhesive leaves the surface clean. Residue means the adhesive was wrong for the substrate, or the film sat on too long.
Peel force rises the longer film stays on. A grade that removes cleanly at two weeks can fight you at three months. Specify by how long the film will actually stay on, not by how long you hope it will.
Standard grades are indoor and short-term. UV-stabilised grades exist for outdoor exposure - do not assume an indoor film will survive a site stack in an Indian summer.
Because we extrude and coat in-house, the adhesive level you approve in trial is the adhesive level you receive in production.
Films can be printed with your brand, product code, handling instructions or a remove-within-X-days warning - itself a cheap way to prevent residue complaints.
Run the film on your surface, through your process, for your actual storage duration. Any supplier who tells you a trial is unnecessary is guessing. Send us your substrate and finish, what the film must survive, how long it stays on, roll width and annual tonnage.
Surface protection film is a temporary self-adhesive polyethylene film applied to a finished surface to protect it from scratches, abrasion and dirt during fabrication, handling, transport and installation. It is peeled off and discarded once the product is in place.
A correctly specified film removes cleanly with no residue. Residue is almost always caused by the wrong adhesive grade for the substrate, or by leaving the film on well past its recommended window.
Match it to the surface finish and the process. Smooth surfaces such as high-gloss aluminium, glass and acrylic need low adhesion. Textured, embossed and powder-coated surfaces need higher adhesion. Aggressive forming such as deep drawing needs a higher grade again.
Only UV-stabilised grades. Standard films are formulated for indoor and short-term use. UV grades carry a rated outdoor exposure period, so specify the exposure duration when ordering.
Every grade has a recommended removal window, because peel force increases the longer the film stays applied. Tell us the real duration in your process and we will specify against it.
Yes. Films can be printed up to six colours with your brand, product code, handling instructions or a removal-deadline warning.