no, the gel coat is only a little thicker than resin.
i dont even use paint brushes anymore for applying resin. i bought a $15 dollar spray gun from big lots and thats what i use to actually spray the resin. it works good actually. after i spray the coat of resin on, i got this shit called 'red thinder' cleaner, and i spray that thru the gun and bam, its clean again. 2 sprays of resin thru a gun is equiv to like 4 coats of resin with a brush. but ya, just get the thicker tipped guns for gel coats, its fucking amazing. oh ya, when i was looking thru your pics in your sig, i noticed you glassed your whole interior together, lol. like the rear piece you made to the quarter panel panels and the rear window triangles. how the hell did you get that out to paint it? or did you have it painted inside the car? lol, just curious tho. it looks amazing tho, props to ya!