The New White Mastic

Flame retardant mastic is a white gray thick jelly, made of epoxy resin, organic solvent, film forming agent, plasticizers, flame retardant, and fillers. It is mainly used as vapor barrier layer for cold insulation and moistrue proof material for building roof. It has all advantages of asphat based mastic, such as better formability, wider service temperature, better cold resistance, due to its main film forming matter is organic polymer.This Fire Retardant Mastic can not melt or crack easily in hot or cold temperature, and its application totally same as asphat based mastic. 

Technical Data

Test Items Unit Technical Data 

 

Colour White Gray

Density kg/m³ ***0±**0

Bonding Strength Mpa ≥0.*5 (*0℃)

Oxygen Index ≥*0

Fire Resistance ï¼… Do not cause flame spreading during construct excution, flame retardant after dried, flame will self-extinguish within 1s after fire source leaves.

Heat Durability No flowing or bubble, after 4 hours at *5℃,  then 1 hour at **0℃(positioned at *5°);

Freezing Resistance No cracks or flak after 2 hours at **0℃

Water Absorption ％ ≦0.5％ by weight(soak in water for *4hours at room temperature).