Gerko multi blue putty is a high performance semi-lightweight polyester putty which can be used as filling or finishing putty. It is easy to apply and to sand. Color changing from blue in grey during drying proces. Ready to sand when color is grey.
Universal polyester putty with lower specific weigth 1,6 kg/L
Colour change to aid timing of the start of the sanding process
Can be used as filling and fine putty
Excellent sanding, beginning with P120
Adhesion to various substrates (steel, galvanized steel, aluminium, polyester laminates, old paint, ...)