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ASTM D3532-99(2004)

Historical Reaffirmation

Standard Test Method for Gel Time of Carbon Fiber-Epoxy Prepreg

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1.1 This test method covers the determination of gel time of carbon fiber-epoxy tape and sheet. The test method is suitable for the measurement of gel time of resin systems having either high or low viscosity.

1.2 The values stated in SI units are to be regarded as standard. The values in parentheses are for reference only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


This test method can be used to obtain the gel time of resin squeezed from prepreg tape or sheet material. This test is a useful measure for material acceptance.

The gel time will vary with the test temperature. The temperatures specified in this test method are two of many temperatures often used in processing epoxy prepreg material. If other test temperatures are used, this is to be clearly noted as indicated in 9.1.2.

Gel time is not recommended as a measure of outline (unacceptable degree of cross-linking). Use Resin Flow Test Method D 3532, or Dynamic Viscosity Practice D 4473.

SDO ASTM: ASTM International
Document Number D3532
Publication Date Oct. 1, 2004
Language en - English
Page Count 2
Revision Level 99(2004)
Supercedes
Committee D30.03
Publish Date Document Id Type View
Oct. 10, 1999 D3532-99 Revision
Sept. 1, 2009 D3532-99R09 Reaffirmation
Oct. 1, 2004 D3532-99R04 Reaffirmation