Standard Test Method for Effects of Laboratory Accelerated Weathering on Elastomeric Joint Sealants

Importancia y uso:

5.1 It is known that solar radiation contributes to the degradation of sealants in exterior building joints. The use of a laboratory accelerated weathering machine with actinic radiation, moisture and heat appears to be a feasible means to give indications of early degradation by the appearance of sealant cracking. However, simulated weather factors in combination with extension may produce more severe degradation than weather factors only. Therefore, the effect of the weathering test is made more sensitive by the addition of the bending of the specimen at cold temperature.

Subcomité:

C24.40

Referida por:

D8138-23, C1021-08R23, C1193-16R23, D5893_D5893M-16R21, C0920-18

Volúmen:

04.07

Número ICS:

83.060 (Rubber), 91.100.50 (Binders. Sealing materials)

Palabras clave:

accelerated weathering; sealant; ultraviolet; weathering;