Sell : glass frosting/etching powder 1.Products Name:glass frosting/etching powder by directly manufacturer. 2.Adopting Standards: ISO14001:2004 EMSC and ISO 90001:2008 QMSC 3.chemical Composition: H2O NH4+ F- Insoluble Substance,ect 4. Specifications: 25kg/bag 5.etching time:50-60 seconds (at above 15 centigrade) 6:Validity: 2 years 7.Application: Used in kinds of glass surface processing. 8. Package: plastic bag