Minwax® Helmsman® spar urethane is specially formulated as a protective clear finish for exterior or interior wood exposed to sunlight, water or temperature changes.
- Contains UV blockers to reduce the sun's graying and fading effects
- Forms a protective barrier against rain and moisture
- Special oils allow the finish to expand and contract with the wood as seasons and temperatures change
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SDS
https://assets.unilogcorp.com/187/ITEM/DOC/Minwax_100021038_SDS.pdf
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Specification Sheet
https://assets.unilogcorp.com/187/ITEM/DOC/Minwax_100021038_Specification_Sheet.pdf