ASTM C879-03 (R2019) PDF Download

ASTM C879-03 (R2019) is a set of test methods that evaluate the release characteristics of release papers used in conjunction with preformed tape sealants. Preformed tape sealants are tacky, deformable solids that are used in various sealing applications. They are typically supplied in roll form with a release paper interlayer. The purpose of these test methods is to determine if the release paper can be removed cleanly from the preformed tape sealant without any transfer or residue.

The test methods outlined in this standard provide a qualitative indication of the release characteristics of the release paper after a controlled exposure period. The procedures are divided into alternative methods, taking into consideration the different conditions in which preformed tape sealants are used (e.g., elevated temperatures in field conditions or more controlled environments in assembly line operations).

These laboratory test methods are intended to be performed on release papers in direct contact with preformed tape sealants. The values stated in the standard are in metric (SI) units and are considered the standard, while values in parentheses are provided for information purposes only. The subcommittee responsible for this standard is not aware of any similar ISO standard.