Spi epoxy over transtar epoxy prep

R

Rmacedo2010

Hey guys I know I need to scuff up my existing transtar epoxy primer ( mustang engine bay ) with 180 grit. My question is, is it a quick scuff with the 180 to break the glossy shine or is it a make sure every nook and cranny is hit with 180. The engine bay has been hit with a red scuff pad already to make sure all the hard to reach spots were hit. Is 180 grit a "to be safe grit to use" ? Only reason I ask is because I see other people say scuff pad is enough. I did message Barry and he told me 180 on the old primer. I just didnt want to ask a silly question like this. Thank you everyone
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Are you planning to epoxy unreduced? If so 180 might be ok. If any scratches show thru they can be sanded out within the 7 day window. 320-400 should be final grit before reduced epoxy is used as a sealer. 600 if it is a metallic.
 
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Yes I planned on spraying unreduced. I was looking for the OEM Ford satin look. I heard spraying unreduced was fine.
 
Not knowing how old the Transtar epoxy is, 180 or 320 I think would be fine as looks pretty good and epoxy sticks different than other products, so being in an engine compartment not as critical as outside the car.
 
Not knowing how old the Transtar epoxy is, 180 or 320 I think would be fine as looks pretty good and epoxy sticks different than other products, so being in an engine compartment not as critical as outside the car.
Thank you, sorry to ask such a silly question I just didnt want to bother you on the tech line with this question. Its greatly appreciated
 
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