Purpose of Backside Coating
- Finish side protection
- Backside coating must be compatible with top side coating
- Protection during coiling stages when exiting the paint line
- Protection during
- Recoiling
- Slitting process
- Sheet stock storage
- Lubrication
- Paint finish on top side and backside acts as lubrication
- Offers protection to
- Slitter
- Roll former
- Gives traction to push or pull material through rollers
- Tooling
- Easier handling and sliding of material
- Corrosion resistance to base metal
- Dissimilar metal protection
- Backside coating acts as a barrier between the panel and the framing
What is backside coating?
- Primer with a back coat
- Off-white/light gray
- Notify custom if project has backside coating exposed there maybe a color variance to top side coating
Backside Coatings on other substrates
- Plastisol on zinc
- Epoxy on metal composite materials (MCM) & insulated metal panels (IMP)
- 70% PVDF
- May be offered on both sides due to
- Visibility of backside coating
- Exposed to outside environment
- If project requires warranty on both sides
- May be offered on both sides due to
