... 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 ... 10days depending on thickness, moisture and tempt-10Service tempt°C-40-150-11Elongation 385GB/T 1347712Elasticity recovery -90GB/T ...