... glazing for windows and doors, glass, etc. 1.Characteristics: YT920 belongs to RTV-1, Acid curing, quickly speed of curing, high ... . Application Standard:China standard GB/T14683-2003 Company standard Q/(NGS) YT 1-2005U.S.A ASTM C920-015. Restriction of Usage ... surface of the materials.6. Color and Package:Color: Transparent, Gray, Black, White, or other colors on request to Yt920Package: YT920 ...