Single component, easy to use, has good extrudability and thixotropy, neutral curing, suitable for coated glass, metal, masonry and other porous materials. Flame retardant and superior performance, flame retardant grade to FV-0 level, one-level fire performance. Exnt weatherability, sunlight, rain, snow, ozone, extreme temperature and others will not cause adverse effects. Exnt adhesiveness, to form a strong bonding with most of the building materials, no need for base coating. Smoke or l not be released during combustion.