However, if Y-putty is used, it is a low-priced and inferior building decoration material produced by pregelatinized starch, carboxymethyl cellulose mixed with Shuangfei powder, talcum powder and other raw materials, especially it contains a lot of harmful substances such as formaldehyde, which can cause damage, poisoning and cancer to people's nervous system, especially to infants and the elderly and the weak.
Extended data:
Introducing large white powder to the market:
In Beijing, Hebei, Shanxi, Shandong, Henan, Shenyang and other markets, it is found that quicklime contains more than 60-70%, cement contains more than 60% of large white powder, or the calendering time in construction is not well grasped. Controlling putty to be 80% dry is the best time for calendering, which is easy to cause powder removal. The hand feel is not smooth, which is mainly caused by the fineness of heavy calcium and gray calcium not reaching more than 400 meshes.
Use a simple method to test the quality of lime, calcium and cement. The method is simple. Mix quicklime and cement into paste with clear water, scrape it on the wall, dry it and wipe it with your hands. If there is hardness, it is genuine and qualified, otherwise it is a fake and shoddy product.
Baidu Encyclopedia-Guadabai
People's network-pathogenic decoration materials should not have a foothold.