PVC Powder K57 for Pipe Fitting Resin

Product Description

PVC is called polyvinyl chloride, the main ingredients of PVC; it has the bright-colored, corrosion-resistant and durable property. It is often add some plasticizers, anti-aging agent, and additively in the process to enhance its heat resistance, toughness, scalability and so on.All kinds of PVC granules, such as rigid, soft, clear and various colors are available. They are used in extrusion, injection and so on, for PVC profile, PVC frame, pipe, seal raw material.
Application: Mainly used for transparent films, soft and hard tube, cables, wires, coated products, foam products, construction pipe and profiles, plates, doors and windows, films etc. Also can be used with injection molding mode to produce plastic sandals, soles, slippers, toys, and other daily necessities and automotive and electrical accessories.
SG-3 is for films, hoses, leathers, wire cables and other general purpose soft products. SG-5 is for pipes, fittings, panels,calendaring, injection, moulding, profiles and sandals. SG-7 / SG-8 is for bottles, sheets, calendaring, rigid injection and moulding pipes.

Parameter		Grade
Standard: GB5761-1993		SG3	SG5	SG7	SG8
K - Value		72 - 71	66 - 68	62 - 60	59 - 55
Polymerizing Index		1300 +/-50	1000 +/-50	800 +/-50	700 +/-50
Number of impurity particles ( ≤)		16	16	20	20
Volatile content (incl. water) (% ≤)		0.3	0.4	0.4	0.4
Apparent density (≥)		0.42	0.48	0.48	0.5
Particle size	≥ 0.25mm ≤	2	2	2	0.4
	≥ 0.063mm ≥	95	95	95	95
Number of Fish Eye (/400 cm2) (≤)		20	20	30	30
Plasticizer absorption of 100g resin ( ≥)		26	19	12	22
Whiteness (160°C, after 10 min.) (% ≥)		78	78	75	75
VCM Residue PPM ( ≤)		5	5	5	5