By Mit123 - 7/5/2020 9:57:33 PM
Hi, I am skinning an item in carbon fibre.
I have laid the carbon and sealed it with 3 layers of resin which is fully cured. I always use 400grot paper here to completely flat out the surface before one final thin coat of resin.
I have been unable to sand out some of the low spots with 400grit. My question is, how low can I go in terms of sandpaper grit here? Will a coat of resin hide the scratch marks of a 200grit or maybe even a 120grit paper?
Thanks in advance for any help you can give.
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By Warren (Staff) - 7/6/2020 4:18:37 PM
You can go quite coarse, eg 240 grit, as long as you work your way back up the grits if you want to lacquer or polish it. The XCR has a high level of UV resistance but is not 100% UV stable so in very sunny climates with high UV exposure, you may want to consider a UV stable lacquer.
Also remember you might want to do a post cure if said environment is warm too. On a hot sunny day, the resin can soften if you don't do a post cure.
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