... mainly for sealing in glass, metal(except copper), concrete, marble, tile ,etc M-820 neutral weather resistant silicone sealantA . FEATURESMono- ... to the materials such as glass, coated glass, concrete, marble, metal, etc. Excellent adhesion to most building materials, no ... such as glass, aluminum and ceramics; Sealing for marble, granite , concrete, brick and tile, metal panel; Other uses. C .COLOR ...