Quote:
Originally Posted by MikeyBob
Yep, some of that 3M powdered guidecoat and a sanding block (I like my 17" one) do wonders. And yes, the 3M stuff is ridiculously expensive but IMO, totally worth it. Plus its way easier to work with than the SEM spray guide coat, I think. 
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I just ordered SEM guidecoat...LOL