Best filling material for fire door--Pearl Rock

- Feb 14, 2019-

(1) Pearl Rock door Core board material all choose natural biodegradable inorganic data, free of organic compounds, no formaldehyde, non-toxic tasteless, pollution-free, truly green environmental protection; 


(2) Pearl Rock door Core board with super temperature resistance, heat insulation, sound insulation function of puffed perlite as the main material, with leading fireproof cementation and inorganic accessories, fire protection function is good, is non-combustible data A1 grade, refractory limit reached 1. More than 5-2 hours, is now the state Ministry of Public Security Fire Department introduced the use of new door core materials, Suitable grade A, grade B and Class C Fire door use;


51--Water Proof Flush Door