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Accelerated weathering test for glass fiber reinforced polyester (GRP) sheets

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada
FormatText, Article
SubjectPlastics; polyester; glass fibres; accelerated tests; weathering tests; durability; building materials; durability; surface degradation; fiber pop-out; surface microcracking; fire-retardant grp; non-gel-coated grp; conventional grp
Abstract
With the development of GRP's of improved durability to weathering it has become necessary to devise accelerated weathering tests that permit assessment of their performance and durability within a reasonable time. The new artificial weathering procedure subjects GRP materials to a cycle of 2 h xenon arc radiation (twice the intensity used in the previously reported cycle of 4 h radiation and 4 h cold water spray) and 0.67 h cold water spray. Exposure of fire- retardant, non-gel-coated, and conventional GRP sheets induced surface degradation similar to that produced by both the 4-4 cycle and outdoor exposure in a considerably shorter time. The acceleration rate was 2.0 to 3.5 (compared with the 4-4 cycle) and 5 to 30 (compared with outdoors).
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  • ASTM Special Technical Publication (1980): 874–889.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-941
NRC numberNRCC 18643
NRC-IRC-90
NPARC number20331280
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Record identifiercc6df4d7-fe53-4a7b-b272-47c57a40ef86
Record created2012-07-18
Record modified2023-12-18
Date modified: