Hi Bob or anyone,Does the SLC need primer over it before the color ?? TIA
Only on the seams and that's more to cover them than anything.. The recommended primer is duplicator rattle can sandable primer available from most any auto parts house. One warning, it will dissolve with prepsol and/or other degreasers even after it's cured for several days. I can't seem to get SLC around compound curves so I just cut it anyplace it doesn't lay down, put a coat of finish resin on the edge and any wood left bare to seal the edges and wood. Wipe it off with a paper towel, next day lightly sand and hit with the primer. When the primer is dry sand smooth and it's ready for color. I wouldn't do a whole airplane this way as the primer can add weight real quick but for spot areas it's great.