Traditional flame retardant extrusion PS thermal insulation material apply HBCD powder as flame retardant additive, general dosage is **6%, but HBCD is fluid between the screw and extruder barrel during the extrusion process which will cause a good fire resistance at the age of the XPS board but a poor effect in the middle and core; Also the flow and residue of HBCD will corrode the mold and extruder barrel to decrease the working life of machine; it always takes about **2 days to wash the extruder after finished the flame retardant grade XPS.

 

HT****5D adopts compound flame retardant additive and other functional auxiliary agents to produce specialized flame retardant master batch for XPS, dosage is the same as or lower than that HBCD powder, when add 4% HT****5D into XPS can reach to GB********6 E grade(original B2 grade) and UL**4V2, but cost is lower than that HBCD powder; As granule master batch, HT****5D is very easy to be mixed with PS base material to get consistent fire retardancy; A nice advantage is to overcome the corrosion to the mould and extruder barrel, prolong machine’ s working life, moreover, the time to wash extruder is greatly shorten to **2 hours. Meanwhile, HT****5D won’t affect the extrusion effect and color of the extrusion board due to its pure color.

 

 

 

Store in the dry condition, room temperature and damp prevention

 

*5kg/bag, paper-polymer outer & PE inner bag