- TECHNICAL SPECIFICATIONS
ASTM C736 Standard Test Method for Extension-Recovery and Adhesion of Latex Sealants
ASTM C736 covers a laboratory procedure for the determination of the extension-recovery and adhesion of latex sealants.
This test method evaluates the performance of a latex sealant in joints subjected to a limited amount of extension
Summary of Test Method
A joint of prescribed dimensions, between glass and aluminum plates is filled with the sealant.
After an aging period, the joint width is increased 25 %, the force is removed, and the specimen is permitted to recover.
The amount of recovery and the percent of adhesion loss are measured.
Extension Machine that can be operated at a steady rate of 12.7 mm/min (0.5 in./min) and held at constant extension for 5 min.
ASTM C717 Terminology of Building Seals and Sealants
ASTM C1375 Guide for Substrates Used in Testing Building Seals and Sealants
ISO Standard: ISO 7389 Building Construction–Sealants–Determination of Elastic Recovery
*** Before conducting ASTM C736 , it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.
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