... sealing in glass, metal(except copper), concrete, marble, tile ,etc M-820 neutral weather resistant silicone sealantA . FEATURESMono-component, convenient ... and ceramics; Sealing for marble, granite , concrete, brick and tile, metal panel; Other uses. C .COLOR AND PACKINGColor: black, ... , white and other colors as customers request; Packing : M-820 packed in 310ml cartridge ( net weight: 300ml ). D . ...