Capstone Gypsum S420

S-350 and S-420 are the most popular products of Capstone Series. S-420 features the high quality and high strength concrete test capping material. It is designated as the best and most reliable product by many professional testing lab. The good reputation of S-420 raises the demand gradually by time. Modern buildings such as high-rise construction request S-420 as the minimum strength as qualification. The water- gypsum ratio for S-420 is recommended to be 21~ 22% . After mixing with water for 30 mins., the gypsum will be fully solidified and reach the strength over 420 kgf/ cm2, equals to 6000psi Compressive Strength and Maximum Thickness of Capping Materials > Cylinder Compressive Strength kgf/ cm2 ( psi) : 420 kgf/ cm2 ( 4000 psi) > Maximum Thickness Average Thickness of Cap : 6 mm > Maximum Thickness Any Part of Cap : 8 mm REMARK : - According to the regulations of U.S. ASTM C617 standard, it is allowed to use high strength gypsum in capping cylindrical concrete specimens. Compared with other methods, gypsum capping is the most convenient, rapidest, and safest capping method. - TAIWAN CAPSTONE uses 100% pure gypsum to produce the high strength capping gypsum without adding extra filler. This procedure conforms to the regulations of ASTM C617 5.3.1 standard. - Every delivered lots is under strict quality control - Free sample delivery for testing - Country of origin: Taiwan https: / / www.youtube.com/ watch? feature= player_ embedded& v= Kzn8KZBcO1A