Main Applications (Most Common for General Grade)
Pipes & Fittings: Water supply pipes, drainage pipes, electrical conduits
Profiles: Door and window profiles, ceiling panels, edge bands
Sheets: Rigid sheets, foam boards, transparent sheets
Injection-molded parts: Connectors, valves, fittings, housings
Soft products: Films, hoses, cable sheaths (soft formula)
Quick Identification Method (On-site Instant Judgment)
Visual Inspection
High-quality pellets: Uniform size, smooth cut surface, dust-free, no impurities, no odor
Low-quality pellets: Irregular size, gray/dull appearance, excessive powder, pungent odor
Burning Test (Safe Quick Check)
Flame: Green edge (characteristic of chlorine)
Self-extinguishes after leaving fire (flame retardant)
Odor: Slight chlorine smell, not pungent plastic odor
Ash: Low amount, white/light gray is good; excessive black ash or caking is poor
Hand Feeling & Specific Gravity
Relatively heavy (heavier than PP/PE)
Not easily crushed, high hardness
Processing Performance
No black smoke, no scorching, no screen clogging
Finished products: Smooth surface, no bubbles, no deformation
