ABS LG Chem HI‑121H

Product Introduction ABS LG Chem HI‑121H is a general‑purpose injection‑molding grade material with high gloss, high rigidity and good thermal stability, widely used in many fields.

Main Applications

Home Appliances: Housings and components for air conditioners, washing machines, vacuum cleaners, televisions, water dispensers, telephones, hair dryers, space heaters and other household appliances.

Automotive Parts: Automotive interior parts (instrument panels, decorative trims), exterior parts, as well as electroplating‑grade parts such as premium‑sedan hood components.

Consumer Goods: Various daily‑use articles including toys, office stationery, luggage cases and safety helmets.

Electrical & Electronic Products: Components for electronic‑electrical end‑products.

Performance Parameters

Property Category	Test Item	Test Condition	Typical Value	Unit
Physical Properties	Density	23℃	1.04‑1.05	g/cm³
	Melt Flow Rate (MFR)	220°C /10.0 kg	22‑23	g/10min
	Molding Shrinkage	‑	0.3‑0.7	%
	Water Absorption	23℃, 24hr	0.3	%
	Whiteness	Cyan reflectance method	53	‑
	Gloss	45°	90‑104	‑
Mechanical Properties	Tensile Strength	Yield, 23°C	49.0‑51.0	MPa
	Flexural Strength	23°C	76.5‑80.0	MPa
	Flexural Modulus	23°C	2350‑2750	MPa
	Izod Notched Impact Strength	1/4", 23°C	22‑23	kg·cm/cm
	Rockwell Hardness	R‑Scale	109‑110	R scale
	Elongation at Break	Break, 23°C	10‑18	%
Thermal Properties	Heat‑Deflection Temperature (HDT)	Unannealed, 1.82 MPa	85.0‑93.0	°C
	Vicat Softening Temperature	‑	92.0‑103	°C
Other Properties	Flammability Rating	1.5 mm	HB	UL 94

Injection‑Molding Parameters

Process Parameter	Reference Range	Remarks & Instructions
Drying Treatment	80°C, 2‑4 hours	Keep hopper heated to prevent re‑moisture absorption; ensure moisture content below 0.1%.
Barrel Temperature	Rear zone:180‑200℃ Middle zone:190‑210℃ Front zone:200‑220℃ Nozzle:200‑230℃ (do not exceed 240°C to avoid material degradation)	‑
Mold Temperature	40‑70℃ (commonly 50‑60℃)	Higher mold temperature improves surface gloss and reduces internal stress.
Injection Pressure	Adjust according to flow length and part structure	‑
Holding Pressure	Approx. 30%‑60% of injection pressure	Optimize per wall thickness and structure to reduce internal stress and shrinkage.
Injection Speed	Medium or medium‑high speed	High‑speed improves gloss yet may cause flow marks; adopt slow‑to‑fast profile for high‑appearance requirements.
Screw Speed	Proper speed for uniform plasticization	‑
Back Pressure	0.5‑1.0 MPa	Facilitates uniform plasticization and degassing.

Note: All data above is for reference only.