Questions about Thermoset Composites?

Low Shrink Sheet Molding Compound

This group of products are designed for applications that require a cost effective composite solution that possesses good dimensional stability and can accommodate tight tolerances. These materials possess very low shrink characteristics and are well suited for applications requiring shrink <0.1% but little requirement for aesthetics.

Please note: all of our materials are custom developed to meet your specific requirements, if you don't see a product performance metric that meets your needs, call us to discuss your specific project requirements at 317.773.1766 or email us at sales-usa@idicomposites.com.

Low Shrink Sheet Molding Compound

S30 Series – Low Profile Automotive Grade
Sheet Molding Compound (SMC)

Properties

Glass Content 20%

Glass Content 25%

Glass Content 30%

Imperial

SI

Imperial

SI

Imperial

SI

Impact Strength-Izod Notched
Test Method: ASTM D-256

12.0 ft.lb./in.

640 J/m

14.0 ft.lb./in.

747 J/m

16 ft.lb./in.

854 J/m

Impact Strength-Izod Unnotched
Test Method: ASTM D-4812

16.0 ft.lb./in.

854 J/m

18.0 ft.lb./in.

960 J/m

20 ft.lb./in.

1,067 J/m

Flexural Strength
Test Method: ASTM D-790

23,000 psi

158 MPa

25,000 psi

172 MPa

30,000 psi

207 MPa

Flexural Modulus
Test Method: ASTM D-790

1,500 ksi

10 GPa

1,800 ksi

12 GPa

2,000 ksi

14 GPa

Tensile Strength
Test Method: ASTM D-638

9,000 psi

62 MPa

10,000 psi

69 MPa

12,000 psi

83 MPa

Tensile Modulus
Test Method: ASTM D-638

1,800 ksi

12 GPa

2,000 ksi

14 GPa

2,500 ksi

17 GPa

Compressive Strength
Test Method: ASTM D-695

27,000 psi

186 MPa

27,000 psi

186 MPa

27,000 psi

186 MPa

Water Absorption (24 Hrs @ 23C)
Test Method: ASTM D-570

0.2 to 0.3%

0.2 to 0.3%

0.2 to 0.3%

0.2 to 0.3%

0.2 to 0.3%

0.2 to 0.3%

Barcol Hardness
Test Method: ASTM D-2583

15 to 60

15 to 60

15 to 60

15 to 60

15 to 60

15 to 60

Heat Distortion Temp @ 264 psi
Test Method: ASTM D-648

>400 F

>204 C

>400 F

>204 C

>400 F

>204 C

Specific Gravity
Test Method: ASTM D-792

1.75 to 1.95

1.75 to 1.95

1.75 to 1.95

1.75 to 1.95

1.75 to 1.95

1.75 to 1.95

Shrinkage
Test Method: ASTM D-955

0.1 to 0.1%

0.1 to 0.1%

0.1 to 0.1%

0.1 to 0.1%

0.1 to 0.1%

0.1 to 0.1%

Flammability (Average Burn Rate)
Test Method: ASTM D-635

0.67 in./min.

1.70 cm/min

0.67 in./min.

1.70 cm/min

0.67 in./min.

1.70 cm/min

Click to download a pdf of the S30 Series Data Sheet

The information on this sheet is a guide. The stated values reflect an average of several tests conducted on CI's goods. These values were obtained under ideal conditions and may not be replicated in any particular test, part, or application. Because the values achieved in actual parts depend considerably on part design, molding conditions, and testing methods, no guarantee is made or implied regarding values to be obtained in any specific test, part, or application. CI makes no warranty or representation as to the suitability of any of its goods for use in any application. CI relies on customer to conduct its own tests and judge for itself the suitability of CI's goods.