... in glass, metal(except copper), concrete, marble, tile ,etc M-820 neutral weather resistant silicone sealantA . FEATURESMono-component, convenient to ... use at the temperature 5-40°C Neutral curing, high modulus, no corrosion to the materials such as ... black, grey, white and other colors as customers request; Packing : M-820 packed in 310ml cartridge ( net weight: 300ml ). D .STANDARDGB ...