Traditional PVC wire and cable insulation (sheathing) are declining in market demand. PVC is difficult to recycle, contains halogen, and passes off-gases of carcinogenic fumes when exposed to heat. New environmental regulations are beginning to focus on transitioning to halogen-free flame-retardant (HFFR) cable solutions. HFFR solutions require high loading rates (>60%), which can negatively impact the performance of the polymer system. The SI Group portfolio of POLYBOND™ coupling agents addresses those problems by improving the polymer's mechanical and physical properties. Wire and cable compounders using halogen-free flame-retardant solutions can benefit from adding POLYBOND™ into their formulations. 

SI Group's broad range of POLYBOND ™ coupling agents improves the mechanical performance of HFFR wire and cable compounds by strengthening the bond between the polyethylene polymer insulation and the filler. POLYBOND ™ polymer additives enhance physical properties, gel resistance, dispersion, and flame-retardant performance. 

	POLYBOND™ 3249	POLYBOND™ 3349	POLYBOND™ 3009	POLYBOND™ 3149
MFI (g/10min)	8	8	5	3
Melting Temp. (C)	122	122	128	120
Elongation @ break (%)	576	443	48	70
Tensile Strength (Mpa)	13	11	22	14
Modulus (Mpa)	176	295	900	350
MAH%	High	High	High	Very High
Compatiblity
Tensile Strength
Elongation
Low Melt Processing Temp
Gel Formation Resistance