... in glass, metal(except copper), concrete, marble, tile ,etc M-820 neutral weather resistant silicone sealantA . FEATURESMono-component, convenient to ... black, grey, white and other colors as customers request; Packing : M-820 packed in 310ml cartridge ( net weight: 300ml ). D . ... surface is below 4°C or above 50°C. G .APPLICATIONDetailed operation procedure please note The Technology Instruction of ...