ASTM-D4640 › Historical Revision Information
Standard Test Method for Determining Stroke Cure Time of Thermosetting Phenol-Formaldehyde Resins
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Scope
1.1 This test method covers the determination of the cure rate at any specified temperature for a thermosetting phenol-formaldehyde resin. The time at that temperature required to make a fluid mixture change into a hard immovable mass indicates speed of cure.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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.
Significance and Use
This method is significant as a process control for polymerization time.
When the cure times are determined at several temperatures and plotted as time versus temperature, different resins can be compared for curing characteristics.
Keywords
phenol-formaldehyde resins; stroke cure time; Curing characteristics--paints/related coating applications; Heating tests--paints/related coatings/materials; Phenolic resins; Stroke cure time; Thermosetting resins; ICS Number Code 83.080.10 (Thermosetting materials)
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To find similar documents by classification:
83.080.10 (Thermosetting materials Including ebonite Silicones, see 71.100.55)
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Document Number
ASTM-D4640-86(2009)
Revision Level
1986 R09 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Dec. 30, 2009
Document Type
Test Method
Page Count
2 pages
Committee Number
D01.33