December 2009 Issue
Exposure Test Results: Varnishes, Teak Oils, and Other Exterior Wood Coatings
Practical Sailor testers rate test panels on gloss and color retention and coating integrity.
Exterior wood finishesóincluding one-part varnishes, two-part varnishes, synthetics, sealers and stains, and teak oilsówere evaluated one year after application. Testers rated the wood finishes on ease of application, the integrity of the gloss and appearance, and how they fared over the 12-month period during which they were exposed to Florida sun and weather. Testers looked at color retention and gloss retention. After a year, 20 of the original 22 one-part varnishes were still performing well, and all six of the original two-part varnishes remained in the running. Varnish alternatives like teak oils and teak sealers struggled to make the 12-month cut, but the Cetol-coated panels still looked good. Products that were doing well 12 months after application included Interlux Cetol Marine and Cetol Marine Light, both with the clear gloss overcoat; Pettit Clear High Gloss and Pettit Wood Finish; Interlux Perfection; and Nautiking NautiThane.
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