Varathane Ultimate Spar Urethane Oil Based. Ultimate gloss oil based urethane spar varnish by varathane®. Telemike | posted in finishing on december 25, 2007 05:39am. I used this product because i've been a little too asthmatic lately to keep using spar varnish.

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I'm looking for something clear (not amber) and satin (little to no gloss). Find quality hardware products to add to your shopping list or order online for delivery or pickup. One difference between this and spar marine varnish is that the spar urethane is a synthetic product and can be either oil based or water based.

Spar urethane is similar to spar marine varnish in that it acts as a protective barrier against water damage and moisture.

Find quality hardware products to add to your shopping list or order online for delivery or pickup. It's a one piece flat door — no recessed panels. Varathane 242183h 1 quart crystal clear spar urethane exterior oil based satin. Or, any suggestions on something better than spar urethane for protection & finish on outdoor wood? Any suggestions on the best spar urethane? I am using helmsman spar urethane to refinish the front door of our house. One difference between this and spar marine varnish is that the spar urethane is a synthetic product and can be either oil based or water based. I used this product because i've been a little too asthmatic lately to keep using spar varnish.