Join Date: Oct 2010
Location: Dana Point, Ca
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Re: Gel coat spray gun recommedations?
The Duratec is good stuff. it thins the gelcoat just right for spraying so you don't need to buy expensive thinners. you can spray two coats or more without sanding between coats like when wax is used. it does make the gelcoat a bit more transparent. it is mixed 1 to 1 so you get twice as much product. so you get more on the surface so not as easy to sand through. the Duratec surfacing primer is a very good product also. it is used to coat epoxy or polyester and sands very easy with no plugging of the paper. sand the surface to 80 grit so it has some tooth and and both products make the gelcoat stick forever . if using the primer use white or light gray for light colors. do not use the dark gray unless you are spraying dark colors. we only sand to 600 and use the Presta cutting compound. some will tell you to sand much finer but thats because they have never used The Presta gelcoat cutting compound product, a little more expensive save a lot of time.
pictures are of one of my latest projects , a "V" Boom add on wings to the original aluminum boom. Vacuum bagged Epoxy/ Carbon fiber Duratec primed and Gelcoat. no need for mirror to read the instruments.
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Last edited by overbored; 10-05-2016 at 03:54 AM.