Standard Test Method for Effects of Heat Aging on Weight Loss, Cracking, and Chalking of Elastomeric Sealants After Cure

Importancia y uso:

5.1 Weight loss from a sealant after application in a building joint can be detrimental to long term sealant durability. A sealant's service life will be shortened if it contains components, critical to its durability, that are volatilized by high environmental temperatures. Also, development of cracks and chalking lessens a sealant's service life.

5.2 The test described herein measures weight loss, cracking, and chalking. The amount of weight lost during the heat aging period and any cracking or chalking helps predict premature sealant failure. However, a sealant developing no cracks or chalking, or low weight loss in this test, does not necessarily ensure good durability.

Subcomité:

C24.20

Referida por:

C1021-08R23, C0920-18, E2813-24

Volúmen:

04.07

Número ICS:

91.100.50 (Binders. Sealing materials)

Palabras clave:

durability; sealant; weight loss;