MATERIALS

BARREL TEMPERATURE (^oC)

MOULD TEMPERATURE (^oC)

INJECTION PRESSURE (PSI)

MOULD SHRINKAGE (%)

Low Density Polyethylene

145-260

10-60

18800

1.5-3.5

High Density Polyethylene

160-270

5-50

26000

1.5-3.0

Poly Propylene

190-210

5-80

26100

1.0-3.0

Poly Styrene

180-280

10-80

21400

0.2-0.8

High Impact Polystyrene

170-270

10-80

21400

0.3-0.6

Styrene Acrylonitrile

180-270

30-85

21400

0.2-0.6

Acrylonitrile – Butodiene Styrene

180-240

60-90

21400

0.5-0.7

Polymethyl Methacrylate

180-260

40-80

25000

0.2-0.4

Unplasticised Polyrinyl Chloride

170-210

20-60

25000

0.2-0.4

Plasticised Polyvinyl Chloride

160-185

20-30

17400

1.5-3.0

Poly Vinylidene Fluoride

180-250

30-120

21400

3.0

Cellulose Acetate

170-250

40-80

21400

0.2-0.5

Cellulose Acetate Butyrate

170-230

40-80

21400

0.2-0.5

Cellulose Propionoate

170-250

40-80

21400

0.2-0.5

Poly Carbonate

280-320

85-120

29000

0.5-0.7

Poly Ether Sulphone

320-420

130-200

29000

0.8

Poly Phenylene-Oxide (Modified)

230-275

80-110

21400

0.7-0.8

Poly Oxymethylene (Acetal)

180-220

40-120

10700

0.2-0.7

Poly Phenylene Sulphide

310-330

130-160

21800

0.7-0.8

Poly Butylene Terephthalate

260-280

70-140

29000

0.9-1.2

Poly Ethylene Terephthalate

230-260

60-120

29000

0.9-1.2

Nylon 6

230-260

60-90

21400

0.7-1.5

Nylon 6.6

260-290

60-100

21400

1.0-2.5

Nylon 11

210-250

60-80

21400

1.0-2.5

Nylon 12

210-250

60-80

21400

0.8-2.0

Thermoplastic Polyurethane

170-220

15-65

17200

1.0

Thermoplastic Polyetherester

160-180

10-70

18000

0.4-1.6

Rubber Reinforced PP

210-270

20-60

26100

0.2

SBS Block/ Copolymers

150-200

15-65

11600

1.0

Structural Form

150-220

10-60

21400

2.0