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DIY Network explains the difference between top-coats and finishes.


Oct 4, 2011 ... Differences Between Polyurethane And Urethane. October 4, 2011 ... Like spar urethane, polyurethane is a plastic resin that is carried in water.


What are the differences? How are ... Spar urethane vs. polyurethane and which is better? ... If you want more coats, sand between each coat of spar urethane.

Oct 22, 2016 ... Difference between polyurethane, varnish, shellac and what's the ... huge difference between marine spar urethane and spar varnish although ...


Spar urethane is a protective clear coat finish that has been specially ... The basic difference between other varnishes and spar, is the ratio of oil to resin. ... It is tougher than polyurethane, making it more resistant to cracking and chipping.


Learn the pros and cons to both polyurethane and varnish—and which of these ... fine furniture, and outdoor decking can mean the difference between a long, lustrous ... A variant of varnish known as spar or marine varnish offers both UV ...


Feb 13, 2007 ... “I am using Helmsman Spar Urethane to refinish the front door of our .... What is the difference between Spar Urethane and Polyurethane?


Nov 2, 2009 ... Urethane vs Polyurethane Very often we use things made of urethane or polyurethane. But we may not ... There exist many differences between the two compounds. ... Can you apply Spar Urethane over polyurethane? Reply ...


Helmsman Spar Urethane is a clear finish that offers protection for interior or exterior wood exposed to ... Always test surface for tackiness between coats.


Difference Between Polyurethane & Urethane. There are a number of chemicals that are used in various construction products in varying trades. Sometimes it ...