1688 can maintain good viscosity under environmental conditions of -25~50℃, making it easy to extrude and use; Maintain good elasticity at -50~150℃ after curing. And it is not affected by sunlight UV, rainwater, ice and snow, air pollution, ozone, and high and low temperatures. Even when exposed to adverse weather conditions, it still maintains excellent weather resistance, waterproof and sealing performance after several years. 999 neutral silicone structural adhesive is compatible with reflective glass, laminated glass, silicone insulated glass, acrylic acid, polyethylene, and other materials.