11.4 Moisture Absorption Curves

171

11.4 Moisture Absorption Curves

Figure 11.26 Rate of water absorption at various conditions
of humidity for Delrin®.[17] (Courtesy of DuPont.)

Figure 11.27 Change in dimensions with moisture content
for Zytel® 101 in the stress-free (annealed) condition.[35]
(Courtesy of DuPont.) This figure (Fig. 7.12) is reproduced
here for the reader’s convenience.

Figure 11.28 Nylon moisture content as a function of time
for three different thicknesses of molded nylon (Zytel®) parts
while immersed in water and at 50% relative humidity.[9]
(Courtesy of DuPont.)

Figure 11.29 Water absorption of a variety of materials
when immersed in water for 24 hours.[40] (Courtesy of
Hoechst Celanese.) This figure (see Fig. 7.6) is reproduced
here for the reader’s convenience.

Notes:
Delrin® (Fig. 11.26) absorbs relatively little water[17] when compared with some other resins such as nylon (Fig
11.28).[9] Nylon swells with the absorption of water. Moisture absorption can cause a nylon part to become larger
than the mold from which the part was made. Figure 11.27 shows nylon water absorption as high as 9% by weight.[40]
Delrin, on the other hand, absorbs less than 1% water by weight.
Figure 11.29 shows the percent water absorption of a variety of materials when immersed in water for 24 hours.
PPS is not hygroscopic; therefore moisture has little effect on it. The only moisture absorption appears to be wicking
along exposed fibers.[40]

© Plastics Design Library

Ch. 11: Data


172

11.5 Pressure Volume Temperature (PVT) Curves
Subject to the conditions discussed in Ch. 4, PVT curves can give a close approximation of the volumetric
shrinkage of a plastic, molded part. These curves give no indication of actual linear shrinkage because they do not
account for molecular or fiber orientation, nor do they account in any way for physical restraints such as ribs, walls,
or cores that may restrict shrinkage while the part is still in the mold. The point at which the gate freezes and the
holding pressure becomes ineffective is difficult to determine with exactitude. Nevertheless, a PVT curve gives a
great deal of insight into the shrinkage behavior of the plastic.
Most of the curves shown herein are presented in a 2D format. This format is generally easier to use. The 3D
curves presented give a graphic picture of the effects of pressure, volume, and temperature on a given plastic, especially semicrystalline plastics, but are more difficult to use in predicting plastic shrinkage.
The PVT curves shown here are given as a representation of a huge database that is available from various
plastic suppliers. GE has PVT curves for over 500 different plastic materials. This type of data must be requested
from the supplier for the particular material you wish to mold.
Tait equation variables are given for each material.

Figure 11.30 A 3D PVT curve for the GE Cycolac® T grade unfilled ABS amorphous plastic (same material as shown in Fig.
11.31). (Courtesy of GE Plastics.)

Ch. 11: Data

© Plastics Design Library


173

ABS
Model

Tait

B1s

1.000504e-003

B2s

3.421291e-007

B3s

1.864395e+008

B4s

3.713166e-003

B1m

1.001071e-003

B2m

6.360780e-007

B3m

1.622039e+008

B4m

4.899814e-003

B5

3.707949e+002

B6

1.693548e-007

B7

0.000000e+000

B8

0.000000e+000

B9

0.000000e+000

Max Temp

296.6

Figure 11.31 A 2D PVT curve for GE Cycolac® T grade unfilled ABS amorphous plastic (same material as shown in Fig. 11.30).
(Courtesy of GE Plastics.)

© Plastics Design Library

Ch. 11: Data


174

Lexan® 141
Model

Tait

B1s

8.53E-04

B2s

1.46E-07

B3s

3.02E+08

B4s

1.75E-03

B1m

8.53E-04

B2m

5.53E-07

B3m

1.82E+08

B4m

3.80E-03

B5

4.14E+02

B6

3.31E-07

B7

0.00E+00

B8

0.00E+00

B9

0.00E+00

MaxTemp

341.7

Figure 11.32 A PVT curve for GE Lexan® 141, an unfilled polycarbonate. (Courtesy of GE Plastics.)

Ch. 11: Data

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175

Lexan® BPL 1000
Model

Tait

B1s

8.526294e-004

B2s

2.181890e-007

B3s

2.239172e+008

B4s

2.556589e-003

B1m

8.545314e-004

B2m

5.565791e-007

B3m

1.366174e+008

B4m

3.576731e-003

B5

3.811843e+002

B6

4.333508e-007

B7

0.000000e+000

B8

0.000000e+000

B9

0.000000e+000

MaxTemp

286.5

Figure 11.33 A PVT curve for GE Lexan® BPL 1000. (Courtesy of GE Plastics.)

© Plastics Design Library

Ch. 11: Data

176

Lexan ® 500R
Model

Tait

B1s

8.036041e-004

B2s

1.538086e-007

B3s

2.874069e+008

B4s

1.479154e-003

B1m

8.041212e-004

B2m

5.035071e-007

B3m

1.725724e+008

B4m

3.790587e-003

B5

4.168094e+002

B6

4.214451e-007

B7

0.000000e+000

B8

0.000000e+000

B9

0.000000e+000

MaxTemp

323.0

Figure 11.34 A PVT curve for GE Lexan® 500R, a 10% glass-filled polycarbonate. (Courtesy of GE Plastics.)

Ch. 11: Data

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177

Lexan® 3412
Model

Tait

B1s

7.59E-04

B2s

1.12E-07

B3s

3.68E+08

B4s

8.81E-04

B1m

7.59E-04

B2m

4.41E-07

B3m

2.14E+08

B4m

3.81E-03

B5

4.10E+02

B6

4.08E-07

B7

0.00E+00

B8

0.00E+00

B9

0.00E+00

MaxTemp

342.2

Figure 11.35 A PVT curve for GE Lexan® 3412, a 20% glass-filled polycarbonate. (Courtesy of GE Plastics.)

© Plastics Design Library

Ch. 11: Data


178

Lexan® 3414
Model

Tait

B1s

6.64E-04

B2s

7.06E-08

B3s

4.41E+08

B4s

8.52E-04

B1m

6.64E-04

B2m

3.29E-07

B3m

2.56E+08

B4m

3.69E-03

B5

4.14E+02

B6

3.97E-07

B7

0.00E+00

B8

0.00E+00

B9

0.00E+00

MaxTemp

343.6

Figure 11.36 A PVT curve for GE Lexan® 3414, a 40% glass-filled polycarbonate. (Courtesy of GE Plastics.)

Ch. 11: Data

© Plastics Design Library

179

Noryl ® 731
Model

Tait

B1s

9.57E-04

B2s

2.29E-07

B3s

2.23E+08

B4s

2.85E-03

B1m

9.59E-04

B2m

7.17E-07

B3m

1.24E+08

B4m

4.12E-03

B5

4.14E+02

B6

4.14E-07

B7

0.00E+00

B8

0.00E+00

B9

0.00E+00

Figure 11.37 A PVT curve for unfilled, modified PPO (GE Noryl® 731). (Courtesy of GE Plastics.)

© Plastics Design Library

Ch. 11: Data


180

Figure 11.38 A 3D PVT curve for unfilled Nylon 6/6 (Zytel® 101L). See 2D curves in Fig. 11.39. (Courtesy of GE Plastics.)

Ch. 11: Data

© Plastics Design Library


181

Zytel® 101L
Model

Tait

B1s

9.916582e-004

B2s

4.555279e-007

B3s

1.530184e+008

B4s

3.303175e-003

B1m

1.042971e-003

B2m

7.326134e-007

B3m

1.167286e+008

B4m

4.018659e-003

B5

5.369995e+002

B6

3.485184e-008

B7

4.881898e-005

B8

1.787171e-001

B9

8.273468e-009

MaxTemp

318.1

Figure 11.39 A PVT curve for unfilled Nylon 6/6 (Zytel® 101L). See 3D diagram in Fig. 11.38. (Courtesy of GE Plastics.)

© Plastics Design Library

Ch. 11: Data


182

Figure 11.40 A 3D PVT curve for unfilled PBT (GE Valox® 327). See 2D curves in Fig. 11.41. (Courtesy of GE Plastics.)

Ch. 11: Data

© Plastics Design Library


183

Valox® 327
Model

Tait

B1s

8.564531e-004

B2s

3.986468e-007

B3s

1.297948e+008

B4s

4.901804e-003

B1m

9.098297e-004

B2m

6.613134e-007

B3m

1.039253e+008

B4m

3.059871e-003

B5

5.041234e+002

B6

1.086342e-007

B7

5.068244e-005

B8

2.085185e-001

B9

2.352836e-008

MaxTemp

298.3

Figure 11.41 A PVT curve for unfilled PBT (GE Valox® 327). See 3D curves in Fig. 11.40. (Courtesy of GE Plastics.)

© Plastics Design Library

Ch. 11: Data


184

Valox® DR48
Model

Tait

B1s

7.38E-04

B2s

2.88E-07

B3s

1.73E+08

B4s

3.43E-03

B1m

7.81E-04

B2m

5.61E-07

B3m

1.08E+08

B4m

2.25E-03

B5

5.03E+02

B6

1.44E-07

B7

3.97E-05

B8

1.07E-01

B9

1.74E-08

MaxTemp

298.3

Figure 11.42 A PVT curve for 15% glass-filled PBT (GE Valox® DR48). (Courtesy of GE Plastics.)

Ch. 11: Data

© Plastics Design Library


185

Valox ® 420
Model

Tait

B1s

7.32E-04

B2s

2.76E-07

B3s

1.69E+08

B4s

4.47E-03

B1m

7.74E-04

B2m

4.77E-07

B3m

1.26E+08

B4m

2.90E-03

B5

5.12E+02

B6

1.17E-07

B7

6.02E-05

B8

8.63E-02

B9

1.40E-08

Figure 11.43 A PVT curve for 30% glass-filled PBT (Valox® 420). (Courtesy of GE Plastics.)

© Plastics Design Library

Ch. 11: Data

186

11.6 Shrinkage and Warpage of Molded Disks
The following shrinkage and warpage data was obtained by molding a circular disk with a single edge-gate. The
change in size from the gate to the opposite side of the disk was measured to determine the flow-direction shrink rate.
The cross-flow shrinkage was measured perpendicular to the flow-direction shrinkage. The warpage is the offset of
the edge of the disk opposite the gate over the diameter of the disk when the gate side is held tightly against the
measurement surface. See Fig. 11.44.[6]

Table 11.2. Flow and Cross Flow Shrinkage and A/D Warpage

Shrinkage Rate (in/in)
Flow

Cross Flow

Warpage

A/D*

Acetal

Unfilled

0.020

0.016

0.075

Acetal

10% GF

0.011

0.013

0.030

Acetal

30% GF

0.004

0.015

0.300

Polycarbonate

Unfilled

0.005

0.005

0.300

Polycarbonate

10% GF

0.003

0.003

0.001

Polycarbonate

30% GF

0.001

0.003

0.003

*A/D is Cup/Diameter, see Fig. 11.44.

Figure 11.44 Flow, cross flow, and warpage (Cup/Diameter) (A/D in Tables 11.2–11.5).[6] (Courtesy of Hanser-Gardner.) This
figure (see Fig. 4.7) is reproduced here for the reader’s convenience.

Ch. 11: Data

© Plastics Design Library

187
Table 11.3. Flow vs Transverse-Flow Shrinkage and Warpage for Injection-Molded Polyacetal (POM) Disksa
with Increasing Glass-Fiber Loading[47]

a

Glass Fiber
Content (%)

Flow Shrinkage
(in/in)

Transverse Shrinkage
(in/in)

Differential Shrinkage
(in/in × 10-3)

Warpage
(A/D*)

0

0.020

0.0160

-4.0

0.075

5

0.015

0.0110

-4.0

0.060

10

0.011

0.0125

1.5

0.030

20

0.006

0.0150

9.0

0.270

30

0.004

0.0150

11.0

0.300

4 inch diameter × 1/16 inch thick disks

*A/D is Cup/Diameter, see Fig. 11.44.

Table 11.4. Comparison of the Warpage of Polycarbonate and SAN at Various Filler-Loading Levels[47]

Base Resin

Modifier Type

Loading Level
(%)

Plaque Warpage
(in)a

Disk Warpage
(A/D*)b

Polycarbonate (PC)

Unmodified

0

0.007

0.001

Polycarbonate (PC)

Glass fiber

10

0.007

0.001

Polycarbonate (PC)

Glass fiber

30

0.018

0.003

Polycarbonate (PC)

Carbon fiber

30

0.006

0.002

Polycarbonate (PC)

Glass bead

30

0.001

0.000

Polystyrene acrylonitrile (SAN)

Glass fiber

30

0.001

0.002

Polystyrene acrylonitrile (SAN)

Glass bead

30

0.001

0.000

a

6 inch × 8 inch × 1/8 inch thick

b

4 inch diameter × 1/16 inch thick

*A/D is Cup/Diameter, see Fig. 11.44.

Note:
The warpage in Table 11.2 is the displacement of the gate side of a 4-in. diameter disk from a flat surface when
the opposite side of the disk is held firmly against the flat surface. The transverse shrinkage is measured across the
disk at 90 degrees each side of the gate. The flow-direction shrinkage is measured from the gate to the opposite side.
The differential shrinkage is the difference between the flow-direction and transverse-direction shrinkage.
Measurements must be taken at least forty-eight hours after molding. Hygroscopic materials must be kept dry for
this period.
Many process variables affect warpage data before annealing. If parts are annealed, process variables have little
effect on measured warpage.
Table 11.4 shows warpage results when molding polycarbonate and SAN.[4]

© Plastics Design Library

Ch. 11: Data


188
Table 11.5. Shrinkage and Warpage Data for Injection-Molded Neat and Filled Thermoplastic Polymers[4]

Shrinkage3
(in/in)

Warpage2
(A/D*)

Modifier Type

Loading Level
(%)

Nylon 6/6 (PA66)

Unmodified

0

0.015

0.050

Nylon 6/6 (PA66)

Glass fiber

10

0.006

0.060

Nylon 6/6 (PA66)

Glass fiber

30

0.004

0.270

Nylon 6/6 (PA66)

Glass fiber

40

0.003

0.270

Nylon 6/6 (PA66)

Carbon fiber

40

0.002

0.200

Nylon 6/6 (PA66)

Glass bead

40

0.010

0.008

Nylon 6/6 (PA66)

Barium ferrite

80

0.008

0.002

Polyacetal (POM)

Glass fiber

30

0.003

0.300

Polypropylene (PP)

Glass fiber

30

0.004

0.380

Polypropylene (PP)

1

Glass fiber

30

0.003

0.300

Polycarbonate (PC)

Unmodified

0

0.006

0.001

Polycarbonate (PC)

Glass fiber

10

0.003

0.001

Base Polymer

Polycarbonate (PC)

Glass fiber

30

0.001

0.003

Polycarbonate (PC)

Carbon fiber

30

0.0005

0.002

Polystyrene
Acryonitrile (SAN)

Glass fiber

30

0.005

0.002

Polystyrene
Acryonitrile (SAN)

Glass bead

30

0.003

0.000

1

Chemically coupled.
4 in diameter × 1/16 thick disk.
3
ASTM D955 test bar.
2

*A/D is Cup/Diameter, see Fig. 11.44.

11.7 Angular Warpage

Figure 11.45 Molded plaque, including walls with and without gussets, with holes, and with cylindrical shapes.[46] (Courtesy of
SPE.)

Ch. 11: Data

© Plastics Design Library


189

Figure 11.46 Bow angle of side wall without gusset vs
thickness for unfilled and filled polycarbonate and

nylon 6/6.[46] (Courtesy of SPE.)

Figure 11.47 Bow angle of front wall with gusset vs
thickness for unfilled and filled polycarbonate and
nylon 6/6.[46] (Courtesy of SPE.)

Notes:
Figures 11.46 and 11.47 indicate the effects of fiber reinforcement and gussets on bow angles of the walls of the
plaque in Fig. 11.45.[46] The angles are measured as deviations from the perpendicular. The bowing is caused by the
delayed cooling of the inside corner of the mold where the wall meets the main part of the plaque. The gusset resists
the bending stress caused by the slower-cooling inside corner, thus reducing the bow angle.
Notice in Figure 11.47 that the gusset reduces the bow angle to less than half the un-gusseted angle.

Figure 11.48 Hoechst Celanese test plaque, molded of PPS (dimensions in mm).[40] (Courtesy of Hoechst Celanese.)

© Plastics Design Library

Ch. 11: Data


190

Figure 11.49 Measurement points of the Hoechst Celanese test plaque molded of PPS.[40] (Courtesy of Hoechst Celanese.)

Notes:
Hoechst Celanese ran tests[40] to determine warpage using 40% glass-filled and 65% mineral/glass-filled PPS
using the sample part shown in Fig. 11.48.[40] Unfortunately, gate location was not specified. Figure 11.49 shows the
dimensions and points at which measurements were taken. Figures 11.50–53 show the test results.[40]
As one might expect, the warpage of the 65% mineral/glass-filled material was less than that of the 40% glassfiber-filled material. The mineral/glass-filled material has less glass fiber in it than the 40% glass-fiber-filled material. The improved warpage characteristics therefore result from two sources. First, the aspect ratio of the mineral fill
is less than the glass fiber, therefore the anisotropic shrinkage is less. Second, the higher fill ratio results in less

overall shrinkage. These tests give some indication of the variations one might expect when molding a complicated
part from PPS.
Once a mold is built and proven, the molder may expect good consistency from the mold provided he exercises
good control over the molding conditions.

Ch. 11: Data

© Plastics Design Library


191

Figure 11.50 Warpage with respect to flatness in the
Hoechst Celanese test plaque molded of PPS.[40] (Courtesy
of Hoechst Celanese.)

Figure 11.51 Warpage with respect to roundness of a
cylinder in the Hoechst Celanese test plaque molded of
PPS.[40] (Courtesy of Hoechst Celanese.)

Figure 11.52 Warpage with respect to roundness of a hole
in the Hoechst Celanese test plaque molded of PPS.[40]
(Courtesy of Hoechst Celanese.)

Figure 11.53 Warpage with respect to bowing angle in the
Hoechst Celanese test plaque molded of PPS.[40] (Courtesy
of Hoechst Celanese.)

© Plastics Design Library

Ch. 11: Data


192
Table 11.6. Dimensional Tests of the Hoechst Celanese Test Plaque Molded of PPS Run at a Variety of
Times Over a Ten-Month Period[40]

Test Date

¯x
(in)

σ
(in)

3 ó × 100
x
(%)

8/10/88

1.9593

0.00016

0.024

8/11/88

9.9593

0.00012

0.017

8/12/88

1.9594

0.00016

0.025

11/17/88

1.9594

0.00016

0.026

11/18/88

1.9593

0.00016

0.025

11/19/88

1.9592

0.00016

0.025

2/27/89

1.9592

0.00024

0.036

2/28/89

1.9591

0.00028

0.043

2/29/89

1.9592

0.00016

0.026

5/29/89

1.9593

0.00020

0.029

5/30/89

1.9593

0.00016

0.022

5/31/89

1.9594

0.00020

0.029

ó × 100
x
(%)
for 3 days

3

Reproducibility for
10 months

0.022

0.025
Dimension = 1.9593 in
± 0.0006 in (0.030%)
0.035

0.027

Note:
The second column is the statistical mean of the measurements. The third column is sigma (σ ), the calculated
statistical standard deviation of the samples. The fourth column is the 3σ accuracy for each day. The fifth column is
the 3σ accuracy for three consecutive days. The last column is the total error range over a ten-month test. It is
approximately equal to twice the maximum standard deviation for that period.

Ch. 11: Data

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193

11.8 General Shrinkage Characteristics for Various Plastics
Table 11.7. Nominal Thermoplastic Mold Shrinkage Rates Using ASTM Test Specimens[10]

Material

ABS
Acetal, copolymer
HDPE, homopolymer
Nylon 6

Nylon 6/6

PBT Polyester

Polycarbonate

Polyether sulfone
Polyether-etherketone
Polyetherimide
Polyphenylene oxide/PS alloy
Polyphenylene sulfide
Polypropylene, homopolymer
Polystyrene

Reinforcement
Unreinforced
30% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
30% glass-fiber

Unreinforced
15% glass-fiber + 25% mineral
15% glass-fiber + 25% beads
30% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
10% glass-fiber
30% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
40% glass-fiber
Unreinforced
30% glass-fiber
Unreinforced
30% glass-fiber

Average Rate* per ASTM D955
0.125 in
0.250 in
(3.18 mm)
(6.35 mm)
0.004

0.007
0.001
0.0015
0.017
0.021
0.003
NA
0.015
0.030
0.003
0.004
0.013
0.016
0.0035
0.0045
0.016
0.022
0.006
0.008
0.006
0.008
0.005
0.0055
0.012
0.018
0.003
0.0045
0.005
0.007
0.003

0.004
0.001
0.002
0.006
0.007
0.002
0.003
0.011
0.013
0.002
0.003
0.005
0.007
0.002
0.004
0.005
0.008
0.001
0.002
0.011
0.004
0.002
NA
0.015
0.025
0.0035
0.004
0.004
0.006
0.0005

0.001

*Rates in in/in (Courtesy ICI-LNP)

Note:
While these data indicate that increasing thickness causes increased shrinkage, parts of greater thickness may not
shrink significantly more than indicated for 6-mm thickness because thicker parts often develop voids instead of more
shrinkage. Gate/runner size and flow direction also influence the above data.
Usually the shrinkage in the thickness of the part is not of significant interest because the thickness is normally
about 1/8 in. (3 mm). One study (Fig. 11.2) measured the in-mold thickness shrinkage of polypropylene, polyethylene, and polystyrene in an 1/8-in. thick tensile test bar. The measurements are in microns, each of which is about 40/
1,000,000 of an inch. Time zero is when the plastic separates from the mold wall. This starting time will vary
depending on the usual variables of gate size, injection pressure, holding pressure, and mold temperature for each
material.

© Plastics Design Library

Ch. 11: Data


194
Table 11.8. Comparative Mold Shrinkage Values for Flow and Cross Flow (Transverse) Directions

Shrinkage
Material

Flow
mil/in

Transverse
mil/in

5
1

5
2

17-22

Acetal 10% GF
Acetal 30% Glass Fiber

ABS unreinforced
ABS 30% glass filled

Shrinkage
Material

Flow
mil/in

Cycoloy C1110HF 125 mil
(3.2mm)

5-7

16-18

Cycoloy C1200 125 mil (3.2mm)

11
3

13-18
6-16

Cycoloy C1200HF 125 mil
(3.2mm)

5-7
5-7

Acetal 30% Glass Beads

3

11

Crastin S600F10 NC10PBT 125
mil (3.2mm)

17

Crastin SK602 NC10 PBT 15%
GF 125 mil
Crastin SK603 NC10 PBT 20%
GF 125 mil
Crastin SK605 NC10 PBT 30%
GF 125 mil

Acetal Unfilled

Transverse
mil/in

Delrin 100 NC010 125 mil
(3.2mm)

18-21

18-21

16

Delrin 100P NC010 125 mil
(3.2mm)

18-21

17-19

6

12

Delrin 111 NC010 125 mil
(3.2mm)

18-21

17-20

4

11

Delrin 1700P NC010 125 mil
(3.2mm)

14-17

15-18

3

10

Delrin 500 NC010 125 mil
(3.2mm)

17-20

18-21

Cycoloy PC/ABS C2800 125 mil
(3.2mm)

4-6

4-6

Delrin 500 NC010 125 mil
(3.2mm) test bar

23

8

Cycoloy PC/ABS C6200 125 mil
(3.2mm)

4-6

4-6

Delrin 500 NC010 125 mil
(3.2mm) plaque

21

15

Cycoloy PC/ABS C2950 125 mil
(3.2mm)
Cycoloy PC/ABS DSK 125 mil
(3.2mm)

4-6

4-6

Delrin 570 NC010 125 mil
(3.2mm) 110°C

13

6-8

Delrin 570 NC010 125 mil
(3.2mm) 124°C

12

21

Cycoloy PC/ABS GPM4700 125
mil (3.2mm)

5-8

Delrin 900 NC010 125 mil
(3.2mm)

17-20

17-20

Cycoloy PC/ABS GPM5500 125
mil (3.2mm)

5-8

18-20

15-17

Cycoloy PC/ABS GPM5600 125
mil (3.2mm)
Cycoloy PC/ABS GPM6300 125
mil (3.2mm)

5-8

Delrin 500 AF (20%PTFE) 125
mil (3.2mm)
Delrin DE8903 NC010 125 mil
(3.2mm)

16

16

Cycoloy PC/ABS IP1000 125
mil (3.2mm)

5-7

Delrin 100, 100P
Delrin 500, 500P

21
21

19
20

Delrin 511P, 911P

19

18

Cycoloy PC/ABS LG8002 125
mil (3.2mm)

5-7

Delrin 900P
Delrin 1700P

21
10

20
18

Cycoloy PC/ABS LG9000 125
mil (3.2mm)
Cycoloy PC/ABS MC1300 125
mil (3.2mm)

5-7

Delrin colors depending on color

Cycoloy PC/ABS MC8002 125
mil (3.2mm)

5-7

Cycoloy PC/ABS MC9000 125
mil (3.2mm)

5-7

Delrin 570, 577

Cycoloy PC/ABS MC8800 125
mil (3.2mm)
Cycoloy C1000HF 125 mil
(3.2mm)

4-6

4-6

Enduran PBT 7062X 125 mil
(3.2mm)

5-7

5-7

Cycoloy C1110 125 mil (3.2mm)

5-7

Ch. 11: Data

5-8

5-8

5-7

5-7

18-21

17-20

Delrin 500T

18

17

Delrin 100ST
Delrin 500AF

13
21

14
15

Delrin CL

19

19

12
8-10

21
11-13

12-14

11-13

7-9

7.5-9.5

Enduran PBT 7065 125 mil
(3.2mm)
Enduran PBT 7085 125 mil
(3.2mm)

© Plastics Design Library


195
Table 11.8. (Cont’d.)

Shrinkage
Material

Shrinkage

Flow
mil/in

Transverse
mil/in

Fortran (PPO) 40% Glass Fiber

1-3

5-7

Fortran (PPO) 65%
Mineral/Glass
Geloy XP1001 125 mil (3.2mm)

1-2

3-5

Geloy XP2003 125 mil (3.2mm)
Geloy XP4025 125 mil (3.2mm)
Geloy XP4034 125 mil (3.2mm)

5-7
5-7

Hytrel G3548L 125 mil (3.2mm)

Material

Flow
mil/in

Transverse
mil/in

Noryl HS1000X 125 mil
(3.2mm)

5-7

4-6

Noryl N190HX 125 mil (3.2mm)
Noryl N190X 125 mil (3.2mm)

5-7

5-7

3-5

Noryl N225X 125 mil (3.2mm)

5-7

5-7

Noryl N300X 125 mil (3.2mm)
Noryl PC180X 125 mil (3.2mm)

5-7
5-7

5-7
5-7

5

Noryl PN235 125 mil (3.2mm)

5-7

5-7

Hytrel 4056

2

Noryl PX0844 125 mil (3.2mm)

5-7

Hytrel 4069

8

Noryl PX9406 125 mil (3.2mm)

5-7

5-7

Hytrel G4074

8

Noryl SE100X 125 mil (3.2mm)

5-7

5-7

Hytrel 4078W

9

Noryl SE1X 125 mil (3.2mm)

5-7

5-7

Hytrel 4556
Hytrel G4774 125 mil (3.2mm)

11
14

Nylon (PA) 6
Nylon (PA) 6 30% GF

13
3.5

14
4.5

Hytrel 5526

11

Nylon (PA) 66

16-21

15-21

Hytrel G5544
Hytrel 5555 HS

17
13

4
6

6
8

Hytrel 5556

14

Nylon (PA) 66 30% GF
Nylon (PA) 66 15% GF 25%
Glass Beads

Hytrel 6356
Hytrel 6359 FG

16
16

Hytrel 6358

5-7
5-7

PEI 30% GF

2

4

16

PET
PET 30% GF

18
3

21
10

Hytrel G7246 125 mil (3.2mm)

16

PC 30% GF

1

2

Hytrel 7246
Hytrel 7248

17
17

Polycarbonate Unfilled
Polycarbonate 10% Glass Fiber

6
3

6
4

Hytrel 8238

18

Polycarbonate 30% Glass Fiber

0.5-1

1-2

Lexan 101/201 125 mil (3.2mm)
Lexan 121/221 125 mil (3.2mm)

5-7
5-7

5-7

5-7

Polycarbonate 30% Glass Beads
PP 30% GF

4
3.5

4
9

Lexan 131 125 mil (3.2mm)

5-7

5-7

PPO/PS Unreinforced

5

5

5-7
5-7

5-7
5-7

PPO/PS 30% Glass Fiber

Rynite 408 62 mil (1.6mm)

1
2.1

2
6.3

Minlon 11C40 NC010 125 mil
(3.2mm)

9

13

Rynite 408 125 mil (13.2mm)

2.0

7.5

Minlon 10B40 NC010 125 mil
(3.2mm)

8

10

Minlon 22C NC010 125 mil
(3.2mm)

Noryl 30% GF

7

Lexan 141/241 125 mil (3.2mm)
Lexan 191 125 mil (3.2mm)

Rynite 415HP 62 mil (1.6mm)

2.4

6.7

4.0
2.3

9.5
8.2

10

Rynite 415HP 125 mil (13.2mm)
Rynite 520 NC010 20% GF 62
mil (1.6mm)

9

2

Rynite 520 NC010 20% GF 125

mil (3.2mm)

3.5

1

Noryl 534 125 mil (3.2mm)

5-7

5-7

7.8

5-7
5-7

Rynite 530 NC010 30% GF 62
mil (1.6mm)

1.8

Noryl 731H 125 mil (3.2mm)
Noryl 731 125 mil (3.2mm)

2.5

8

Noryl GFN1 125 mil (3.2mm)

2-5

Rynite 530 NC010 30% GF 125
mil (3.2mm)

Noryl GFN3 125 mil (3.2mm)

1-4

Rynite 530 NC010 30% GF 250
mil (6.4mm)

3

10

© Plastics Design Library

Ch. 11: Data