FAILURE OF CAN/CGBS-1.61-95 MARINE ALKYD PAINT TO DRY ON NEOPRENE COATED NYLON SEALING TAPE

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Authors
  1. Hiltz, J.A.
  2. Power, J.J.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The failure of CAN/CGSB-1.61-95 marine alkyd paint to dry when applied over a neoprene-coated sealing tape has been investigated. Analysis indicated that the tape and the paint applied to the tape contained several alkyl-substituted phenols. As these compounds are anti-oxidants and the paint cured by an oxidative mechanism, it was postulated that the failure of the paint to cure when applied to the tape was due to the leaching of the alkyl-substituted phenols form the tape into the paint and subsequent inhibition of the oxidative drying mechanisms. To test this hypothesis, a commercially available alkyl-substituted phenol, methyl-di-t-butyl phenol, was added to the paint. The paint did not cure, indicating that the alkyl-substituted phenols were responsible for the failure of the paint to cure.
Keywords
CAN/CGSB-1.61-95;Marine alkyd paint;Alkyl substituted phenols
Report Number
DREA-TM-96-238 — Technical Memorandum
Date of publication
01 Nov 1996
Number of Pages
20
DSTKIM No
97-03030
CANDIS No
503112
Format(s):
Hardcopy;Document Image stored on Optical Disk

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