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Author Topic: Polyurethane or Polyester Varnish ?  (Read 1139 times)

wullie/mk2

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Polyurethane or Polyester Varnish ?
« on: December 11, 2011, 09:43:00 AM »

What are the pro's and con's of these, particularly when varnishing a deck.
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StarLocAdhesives/FiveStar

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Re: Polyurethane or Polyester Varnish ?
« Reply #1 on: December 11, 2011, 09:56:38 AM »

In the past most polyurethanes yellowed with age and polyesters were very low colour change with age , polyesters in general harder, polyurethane more flexible

The problem is with modern formulations, it all depends on brand / formula / how you want to use it,  as many polyurethanes and polyesters are virtually identical in performance
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