Protective Film For Sandwich Panel – Versatile Clear Adhesive Films for Secure Bonding Solutions

Clear Adhesive Film Company is a manufacturer of protective film for sandwich panel production, supplying temporary PE surface protection for steel-faced insulated panels from inline film application to final removal after installation. The film is made for coated metal faces that go through trimming, palletizing, loading, transport, open-yard storage, and project-site fixing. Typical grades use 30 um – 80 um PE film, adjustable adhesion, and residue-controlled peel-off after surface testing.

Product Overview

This sandwich panel protective film is made for factories producing roof panels, facade panels, cold room panels, cleanroom panels, and other steel-faced insulated panels. It is applied to the visible metal skin during production, so the finished surface stays protected before cutting, stacking, shipment, outdoor storage, and installation. Common widths such as 950 mm, 1000 mm, 1220 mm, 1250 mm, and 1500 mm help match standard panel faces.

Thickness is only one part of selection. Adhesion matching often matters more. Smooth PPGI and PPGL surfaces usually work with low to medium tack. Matte, embossed, or lightly textured pre-painted steel may need stronger contact to reduce lifting during saw cutting, pallet movement, forklift handling, and truck loading. If tack is too weak, the film may curl. If it is too strong, removal after heat, UV, rain, or long storage may become difficult.

For pre-painted steel protective film use, test the actual coated panel before bulk lamination. Check 24-72 hour adhesion, peel removal, residue, edge lifting after cutting, and short outdoor exposure. Look for curled edges, adhesive transfer, ghost marks, paint pull, wrinkle lines, and removal resistance. Typical reference adhesion can be adjusted from 80 g/25 mm to 450 g/25 mm according to coating system, texture, storage time, and removal schedule.

Benefits

Protects painted metal skins from scratches, dust, fingerprints, press marks, and handling contact.
Supports inline film application with stable unwind, smooth contact, and lower wrinkle risk.
Helps control edge lifting during trimming, palletizing, forklift movement, and loading-yard handling.
Offers UV-resistant grades for 30-90 days short outdoor storage to reduce adhesive aging risk.
Supports custom printed PE film with logo, peel direction, installation reminder, batch mark, or panel brand message.
Allows residue-controlled peel-off when film grade, coating, exposure time, and removal timing are matched.

Because the acceptable exposure period depends on UV, surface temperature, adhesive grade, substrate, and dwell conditions, review our polyethylene film outdoor qualification guide before approving the outdoor storage window.

When should the protective film be applied on a sandwich panel production line?

Film application is usually planned around the steel-facing process, not left as final wrapping. It can be laminated onto pre-painted or galvanized steel before forming, after face-sheet preparation, or before finished panels enter trimming and palletizing. The best position depends on line layout, panel width, roll change frequency, and surface risk. A suitable steel surface protection film should stay flat during production movement, protect the visible coating during shipment, and peel away after installation without pulling paint or leaving obvious adhesive marks.

TDS

Item	Typical Value
Film base	PE temporary protective film
Adhesive type	Water-based acrylic or solvent-based acrylic, selected by surface test
Common thickness	30 um - 80 um, custom 20 um - 120 um available
Roll width	950 mm, 1000 mm, 1220 mm, 1250 mm, 1500 mm
Slitting tolerance	+/- 1 mm for regular width, reference value
Roll length	500 m - 3000 m, based on thickness and line speed
Adhesion to pre-painted steel	80 g/25 mm - 450 g/25 mm, adjusted after panel test
UV and temperature	30 days - 90 days UV option, -10 C - 60 C service range
Residue and edge check	24-72 hour peel test, trimming and loading simulation
Printing option	Logo, peel direction, installation reminder, batch mark, +/- 2 mm - +/- 5 mm tolerance

Applications

Steel-faced sandwich panel production line lamination
Insulated metal panel protection during trimming, stacking, forklift handling, and truck loading
Roof panel and facade panel shipment protection
Cold room panel and cleanroom panel surface protection
PPGI and PPGL coated steel panel temporary protection
Export panel identification with printed protective film

How does outdoor exposure affect film selection before the panels are installed?

Sandwich panels may wait outside during loading, temporary storage, or project staging, so selection should not rely only on thickness or initial tack. UV, rain, heat, and daily temperature changes can age the adhesive layer. A low-grade film may become harder to remove or leave residue on the steel-facing surface. For export panels or open-yard storage, a UV-resistant PE film with matched acrylic adhesive is safer. Printed reminders can show peel-off direction, installation-side information, and removal timing.

production line

loading containers

FAQ

Is this film suitable for sandwich panel production lines?

Yes. This protective film for sandwich panel production is designed for inline application, coated steel protection, trimming, stacking, shipment, and installation-stage removal.

Can the adhesion be adjusted for different steel coatings?

Yes. Adhesion can be selected for glossy, matte, embossed, PPGI, PPGL, galvanized steel, and pre-painted steel surfaces.

Will the film leave residue after removal?

Clean removal is the target, but performance depends on coating type, exposure time, storage temperature, UV level, and removal timing.

Can the film be printed with logo or removal instructions?

Yes. Printing can include logo, peel direction, installation reminder, batch code, production mark, or panel brand information.