INSTALLATION INSTRUCTIONS:
1. Remove your truck’s roof panels, placing on a clean, soft surface.
2. Thoroughly clean the surface of oil, dust, etc. Test cleaning agents, verifying no adverse effects on truck panels - citrus cleaners are not recommended. Isopropyl alcohol is usually sufficient. Verify panel is 100% dry before adhesion!
Important for Full-Strength Adhesion: 3M™VHB™ Adhesive requires installation in indoor spaces free of dust, and at 59°F-79°F/15°C-26°C with relative humidity 40%-60% (lower humidity makes better bond.) Adhesive applied <10°C/50°F may not bond properly. If applied in lower temperatures, warm the substrate and adhesive.
3. Do not peel apart the hook side and loop side strips for perfect alignment. Unzip one panel so you can feel the inner contours. Now peel the release films from both adhesive strips and place the headliner with the zipper hinge all the way towards the windshield/straight side of the truck panel. Verify the headliner is perfectly in line with the panel contours before you stick it down in one motion. Press firmly back and forth for at least 2 minutes across panel channels to establish adhesion and remove any air spaces. Zip the headliner back up. Repeat for any other panels.
4. Cure before use! Don’t load or pull for 24-30 hours to achieve full bonding strength. Minimize peeling the headliner off the truck ceiling hook and loop strip - frequent peeling will reduce the adhesive performance.
Operating Temperature Range: -40°C to 85°C/-40°F-185°F
Note: 3M™ VHB™ adhesive is semi-permanent. For a non-permanent option, please see our (Original Version) Headliners
5. CRITICAL! Loop each of the 4 corner cord loops around all 4 truck panel locks to ensure a hard stop for the headliner independent of the hook and loop adhesive strips as the panel resides overhead in an operating vehicle. Also, avoid mounting hard/heavy objects to the modular strips as they could cause injury in a collision, roll-over, or aggressive driving.