Single component, easy to use, with good extrudability and thixotropy. Neutral curing, suitable for coated glass, metal, masonry and other porous materials. With good adhesiveness and no pollution to marble, granite, cement and other porous materials. Exnt weatherability, sunlight, rain, snow, ozone or extreme temperatures do not cause adverse effects. Exnt adhesiveness, to form a strong bonding with most of the building materials, no need for base coating.