... mainly for sealing in glass, metal(except copper), concrete, marble, tile ,etc M-820 neutral weather resistant silicone sealantA . ... to the materials such as glass, coated glass, concrete, marble, metal, etc. Excellent adhesion to most building materials, ... Sealing for marble, granite , concrete, brick and tile, metal panel; Other uses. C .COLOR AND PACKINGColor: black, grey, white and other ...