First of all, everyone needs to know what Drywall Corner bead is. Although drywall return bead for exterior walls is not unfamiliar to people engaged in the construction industry, it is indeed unfamiliar to many other people.
Nowadays, the internal insulation plastering of building energy-saving exterior walls needs to prevent cracking. Because the insulation dry powder mortar has low strength and a thickness of 30mm, it is easy to crack, so drywall return bead must be added before covering the surface.
Bullnose corner cap has the characteristics of stable structure, high strength, good alkali resistance, corrosion resistance, crack resistance, etc., good reinforcement effect, and simple and easy construction.
Bullnose corner cap is mainly suitable for cement, gypsum, walls, buildings and other structures. The internal and external surfaces are strengthened and crack-proof. It is a building material for exterior wall insulation projects.
Although cracked corner bead are structural materials and can play a role in preventing cracks, their uses will also have some subtle differences due to different use environments.
Drywall Corner bead has higher hardness and stronger performance, and its weight is usually around 80 to 160 grams. cracked corner bead does not need to bear too much pressure, so its weight is lighter at around 50 to 60 grams.