Best Exterior
Minwax Helmsman Indoor/Outdoor Spar Urethane, Quart, Semi-Gloss
Minwax
UV inhibitors protect the finish and the wood from solar degradation
- Exterior spar urethane
- UV protection
- Water resistant
- For exterior wood
Pros
- UV inhibitors protect the finish and the wood from solar degradation
- Flexible formula expands and contracts with wood movement in outdoor conditions
- Water resistant for outdoor furniture and exterior applications
- The most available exterior urethane at hardware stores
Cons
- Interior use is possible but indoor-only formula is superior for sealed interior applications
- Requires more frequent reapplication than interior polyurethane
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