Protective Film For Deep Drawing

Films Protection Company is a manufacturer of protective film for deep drawing, designed for metal sheet deep drawing, stamping, and forming processes where standard flat film may tear, slide, or lift. The film combines a high-stretch PE or polyolefin carrier with a removable adhesive system, helping appliance panels, automotive formed parts, and kitchenware components stay protected during metal deformation and peel cleanly after processing.

Product Overview

This deep drawing protective film is made for deformation performance, not just flat surface coverage. In a press cycle, the metal sheet moves across die surfaces, bends into curved profiles, and stretches around radii. A normal flat protection film may look suitable before forming, but it can lose contact near corners, split at stretched edges, or leave adhesive transfer after pressure, lubricant contact, and stacked storage.

For shallow pressed parts, a medium-tack stamping protection film for metal gives enough flexibility while keeping removal smooth. For deeper cavities, tight radii, or repeated forming steps, a stronger forming process protection film is usually safer. Typical elongation is selected in the 300%-800% range after sample validation, while thickness is commonly adjusted from 50 um to 100 um according to forming depth, panel finish, die radius, lubricant condition, and final peel requirement. Peel adhesion and residue behavior should be checked on the actual surface, because polished, brushed, coated, and oiled metals can respond differently after forming pressure.

Benefits

– Stays in contact as the sheet is shaped into curved profiles and deeper cavities.

– Helps reduce draw marks, friction scratches, and pressure-related surface damage.

– High elongation protective film improves stretchability around corners and stretched edges.

– Tear-resistant carrier helps reduce splitting during heavy forming or repeated press steps.

– Adhesive holds during processing but remains removable after the part is shaped.

– Residue-free removable protection film can be checked by 24-72h peel observation.

– Light, medium, and high-tack options match smooth, brushed, coated, or polished metal.

– Sample testing can include actual sheet surface, lubricant, die radius, forming depth, and press cycle.

Which grade should be selected for light deep drawing or heavy forming?

Light deep drawing usually needs a balanced film with moderate adhesion, clean peel, and enough flexibility for shallow curves or wide-radius formed parts. Heavy forming needs a stronger grade with higher elongation, better tear resistance, and more stable adhesion around corners, cavities, and stretched edges. If the part has a deep cup shape, tight radius, or repeated press steps, a standard surface film may tear, lift, or lose contact before the process is complete. Grade selection should consider thickness, adhesive system, peel adhesion, metal finish, lubricant contact, and whether the film must remain on the part after the first forming stage.

TDS

Applications

– Deep drawn kitchen appliance shells, sink-related parts, and formed metal housings.

– Stamped appliance panels where the visible surface must stay clean after pressing.

– Automotive formed parts needing temporary protection during shaping and handling.

– Stainless steel, aluminum, and coated metal sheets before curved part production.

– Decorative metal panels requiring peel-off protection after surface inspection.

– Multi-step press lines where the film must stay attached between forming stages.

How can sample testing confirm the film will stay attached after stamping and still peel cleanly?

Flat-panel adhesion testing is only a starting point. A reliable forming trial should use the actual sheet surface, forming depth, lubricant condition, and tooling pressure before batch use. After the press cycle, the formed part should be inspected for film sliding, wrinkles near curved corners, tearing at stretched edges, or lifting inside the cavity area. Removal should also be checked after 24-72 hours of dwell time, because adhesive growth may appear after pressure, oil contact, or stacked storage. The target result is stable attachment during forming and clean peel without glue transfer, pulling marks, or visible haze. When the formed part starts from a painted or coated sheet, use the pre-painted sheet protection trial to confirm surface condition and removal risk before the press-cycle test.

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FAQ

Is this film the same as ordinary flat metal film?

No. This grade is designed for shaped parts where the film must stretch with the sheet, hold around radii, and peel cleanly after pressing.

What thickness should be selected?

Most forming applications start from 50 um-100 um. The final thickness depends on forming depth, surface finish, die radius, lubricant contact, and removal requirement.

Can the film be removed without residue?

Yes. The removable adhesive is designed for clean peel, but a 24-72h residue test on the actual surface is recommended before bulk use.

Do light and heavy deep drawing need different films?

Yes. Light forming usually needs balanced tack and easy removal, while heavy forming needs higher elongation, stronger tear resistance, and more stable adhesion.