Gilsonite in Fillers and Putties

Dark fillers and putties for wood, metal and masonry can use gilsonite as a binder.

Benefits

• Hard, sandable result
• Water resistance
• Dark colour for matching

Typical uses

• Filling gaps in dark-stained timber
• Repairing knots and cracks in outdoor posts and beams
• Sealing joints in boat and dock timbers (traditional uses)
• Filling metal castings before painting

Why gilsonite

Gilsonite gives a hard, sandable filler that bonds to wood and resists water. Its dark colour matches stained or painted dark surfaces.

Simple formulation idea

Tips

Apply in thin layers, allow solvent to evaporate between layers, and sand once fully hard.

See sealer and filler grade gilsonite.