Common Plastic  Injection Molding Data

 

Acronym

Plastic/Resins

Density

Mold Temp

Barrel Temp

Shrinkage

Applications

GPPS

General Purpose Polystyrene

1.04-1.09

40-60

180-280

0.2-0.8

Stationary, Daily use items, Lampshade, Instrument housing, Toys

HIPS

High Impact Polystyrene

1.14-1.10

40-60

190-260

0.2-0.8

Daily use items, Electric components, Machine housing, Toys

ABS

Acrylonitrile-Butadiene-Styrene

1.01-1.08

50-80

180-260

0.4-0.9

Toys, Furniture, Sporting Goods, Machine housing, Daily use items, Handles, Gears

AS(SAN)

Acrylonitrile-Styrene

1.06-1.10

40-70

180-250

0.2-0.7

Daily use items, Cutlery, Watch cover, House appliances, Decorative

LDPE

Low Density Polyethylene

0.89-0.93

10-40

160-210

1.5-5.0

Packaging bags, Toys, Bottle, Plastic flowers, Electric wire

HDPE

High Density Polyethylene

0.94-0.98

5-30

170-240

1.5-4.0

Packaging bags, Tubs, Electrical wire, Toys, Construction Materials

EVA

Ethylene-Vinyl Acetate

0.93-0.95

40-60

180-220

0.7-3.5

Shoe sole, Packaging Film, Boards, Daily use items, Ducts. Inflatable toy products

PP

Polypropylene

0.85-0.92

20-50

160-230

1.0-2.5

Packaging bags, Thread and filament, Cordage, Toys, Daily use items, Bottles, Washing machine parts

Soft PVC

Polyvinyl Chloride (Plasticized)

1.19-1.35

20-40

150-180

1.0-5.0

Pipe and tubs (flexible and rigid), Board (flexible and rigid), Electrical wire, shoe, Artificial leather, Flooring, Window Frames

Hard PVC

Polyvinyl Chloride (Rigid)

1.38-1.41

20-60

150-200

0.2-0.6

Pipe and tubs (flexible and rigid), Board (flexible and rigid), Electrical wire, shoe, Artificial leather, Flooring, Window Frames

PA-6

Polyamide-6

1.12-1.15

20-120

200-320

0.3-1.5

Bearings, Gears, Fuel pipe, Containers, Daily use items

PA-66

Polyamide-66

1.13-1.16

20-120

200-320

0.7-1.8

Machine parts, gears, Filament, Axe Box, Tool housing, Electrical equipment film

PMMA

Polymethyl Methacrylate

1.16-1.20

50-90

180-250

0.2-0.8

Decorative, Sun glasses, Stationary, Watch cover, Instrument housing, Lamp shade, Advertisement panel

PC

Polycarbonate

1.20-1.22

80-120

275-320

0.5-0.8

Machine/Instrument/Medical equipment/Telecommunication Equipment Housing, Bullet proof plate, Coffee machine housing

POM

Polyoxymethylene

1.41-1.43

80-120

190-220

1.5-3.5

Bearings, Axle box, Gears, Cams, Pumps, Electrical, Springs

PET

Polyethylene Terephthalete

1.29-1.41

80-120

250-310

2.0-2.5

Soft drink bottle, Chain, Gear, Recorder tape, Magnetic tape, Photo film bearing

PBT

Polybutylene Terephthalate

1.30-1.38

40-70

220-270

0.9-2.2

Electrical parts, Electrical housing

CA

Cellulose Acelete

1.25-1.35

40-60

160-230

0.2-0.7

Household Utensil, Tool handle, Containers, Spectacle frames, Stationary, Decorative

PPO

Polyphenylene Oxide

1.04-1.10

70-100

240-280

0.5-0.8

Machine parts, Electrical housing

PPS

Polyphenylene Sulfide

1.28-1.32

0-150

300-340

0.6-0.8

High temperature parts and housing

 

 

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