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DancingEquus
OK.
Multi part question here... sorta long apologies in advance.
Has anybody block sanded from the start of the initial scuffing process for a full color change? I'm not taking the entire truck all the way to bare metal so, more specifically, before spraying epoxy, to have a little more finesse and sanding "accuracy," block sand OEM newer paint? My truck is a GMC Sierra 2500HD Duramax. 65% of its factory white paint is in good condition.
I have a little Dewalt palm random orbit sander that I have been using with 80 grit on areas where the paint is less then great looking due to numerous rock chips and scratches.
However, I work a LOT on my truck at night when my kiddos head to bed and I can just focus and zone. To be courteous to my neighbors I just tried sanding a bit of clear with my 11" durablock and a half round block for the engine and fender curves with a bit of 180 and I liked the texture and results of that SO MUCH BETTER! I felt it was scuffing quicker, with FAR less burn through... I had more control and my goal is to salvage as much of the good factory paint as possible.. So even on the curves and edges of panels I'm not accidently taking off more paint then nessassary. Pics attached clearly illustrate the difference between the hand sanding front quarter and hood, vs the big adorable dalmatian pattern of me with the orbital and just winging it without my normal amount of obsessive research on the how to's of this stage!!!
So, my question before even spraying the first coat of epoxy: is there anything wrong with prep sanding an entire vehicle using block sanding techniques? If yes, what type of "texture/look/feel should I be aiming for in the sanding finish before I know im ready to spray epoxy? Even though I need the scratches, is block sanding with 180g until smooth feeling under my hand ok/right/wrong? Is it sand 180, until smooth texture with no gloss then jump up to a 320 and block again for more and finer scratches or is leaving it blocked at 180 ok?
I know 80 grit on any bare metal spots... is that a must do using a palm sander? Or can I scuff just those spots with my hand as well?
0 experience and i'm in way over my head, but I'm 2 months in and several thousand deep so win lose or draw i'ma do this regardless. But yeah, I've been searching through every sanding forum, YouTube, or article I can find with no luck finding those particular answers!!!
I have all SPI primers and paints: white epoxy over bare metal spots, body filling anything thats actually dented a tad from the rock chips, 2k primer, epoxy as a sealer coat, SPI's white basecoat... there's more but ill save that can of worms for another day! Any advice would be a lifesaver!!! Thank you!
Multi part question here... sorta long apologies in advance.
Has anybody block sanded from the start of the initial scuffing process for a full color change? I'm not taking the entire truck all the way to bare metal so, more specifically, before spraying epoxy, to have a little more finesse and sanding "accuracy," block sand OEM newer paint? My truck is a GMC Sierra 2500HD Duramax. 65% of its factory white paint is in good condition.
I have a little Dewalt palm random orbit sander that I have been using with 80 grit on areas where the paint is less then great looking due to numerous rock chips and scratches.
However, I work a LOT on my truck at night when my kiddos head to bed and I can just focus and zone. To be courteous to my neighbors I just tried sanding a bit of clear with my 11" durablock and a half round block for the engine and fender curves with a bit of 180 and I liked the texture and results of that SO MUCH BETTER! I felt it was scuffing quicker, with FAR less burn through... I had more control and my goal is to salvage as much of the good factory paint as possible.. So even on the curves and edges of panels I'm not accidently taking off more paint then nessassary. Pics attached clearly illustrate the difference between the hand sanding front quarter and hood, vs the big adorable dalmatian pattern of me with the orbital and just winging it without my normal amount of obsessive research on the how to's of this stage!!!
So, my question before even spraying the first coat of epoxy: is there anything wrong with prep sanding an entire vehicle using block sanding techniques? If yes, what type of "texture/look/feel should I be aiming for in the sanding finish before I know im ready to spray epoxy? Even though I need the scratches, is block sanding with 180g until smooth feeling under my hand ok/right/wrong? Is it sand 180, until smooth texture with no gloss then jump up to a 320 and block again for more and finer scratches or is leaving it blocked at 180 ok?
I know 80 grit on any bare metal spots... is that a must do using a palm sander? Or can I scuff just those spots with my hand as well?
0 experience and i'm in way over my head, but I'm 2 months in and several thousand deep so win lose or draw i'ma do this regardless. But yeah, I've been searching through every sanding forum, YouTube, or article I can find with no luck finding those particular answers!!!
I have all SPI primers and paints: white epoxy over bare metal spots, body filling anything thats actually dented a tad from the rock chips, 2k primer, epoxy as a sealer coat, SPI's white basecoat... there's more but ill save that can of worms for another day! Any advice would be a lifesaver!!! Thank you!
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