Filler is a material that’s added to the surface of another object to make for a smoother surface, usually to apply another type of finish over it like paint or a veneer.
A wall filler is a material that is used to fill in gaps or cracks in walls. It can be made from a variety of materials, including plaster, wood, metal, or plastic. Wall fillers are typically used to improve the appearance of walls and to make them more durable.
I'm Joost Nusselder, the founder of Tools Doctor, content marketer, and dad. I love trying out new equipment, and together with my team I've been creating in-depth blog articles since 2016 to help loyal readers with tools & crafting tips.