Vira polyurethane PU foam spray gum is a universal multi foam device use to fill up a gap in a wall. It's a 750ml container and it is 100% solid when spray into a gap and solvent free composition helps in shrinkage free grout. it hs very now viscosity that benefits penetration into hairline cracks. On reaction with water foams around 30 times which benefit filling of wider cracks and honey combing of concrete structures. It bonds strongly to dry and wet concrete, bricks and stones.
- Features:
- -Good filling capacities
- -Application temperature is between 5-40C
- -Dries tack-free in 20 minutes and cures in 24 hours
- -Clean surfaces of dirt, grease and dust then moistening the cavity
- -Cured foam can be trimmed, painted, sanded, plastered, grouted or caulked