Panel Mastic

Makrete Panel Mastic is a butyl‑based, non‑sag sealant designed for small joints and insulation panel work. It stays permanently flexible, won’t skin over, and provides strong moisture resistance — making it ideal for coolroom construction and refrigerated container builds.
 
This mastic is safe to use on polystyrene panels and creates a reliable barrier against moisture vapour.
It performs well in cold‑room environments, with a temperature rating from –30°C to +50°C.
 
Colour: Off‑white