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Matthieu Libeert - 7/23/2018 12:45:43 PM

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Stephen Clarke - 7/23/2018 8:23:18 AM

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Matthieu Libeert - 7/23/2018 7:43:33 AM

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Stephen Clarke - 7/21/2018 6:53:37 PM

Hi,
I used XCR Epoxy Coating Resin to coat an outdoor worktop and wondered if you could give me some advice on polishing it? Is it possible to polish it to a matt finish. What should I use to polish it to either a matt or gloss finish?
Thanks,
Stephen

Hi Stephen, 

depending on the grid you want to start with (if you need to sand out some errors or not) it's pretty straight forward; always double the sanding grid. In most cases I start with a 400 grid.
If it's taking to long I go to a 200grid, then even lower if needed. Once you got everything level and nicely sanded you double the sanding grid or can even take a sanding grid inbetween for better results (but more work ) so for example you could do 400-600-800-1000 (at this level it should start to look clear but with a matte finish) then go up as much as you like with 1200-1500-2000 (will start to look glossy at this level) then polish with some polishing compound and a pad on a drill (both sold by EC) or by a polishing machine (for even better results) 

biggest thing that can go wrong in these steps is not taking enough time sanding out scratches left from a previous sanding grid (resulting in small glossy scratches on your finish once polished) the main goal of going up in sanding grid is removing all sanding scratches left from previous gird used)

Good luck

Thanks Matthieu, that's extremely helpful. One follow up question... What kind of sabers would you use for a large surface area (a worktop)? E.g. belt, orbital etc

orbital sander works best! try to avoid wet sanding or cleaning with water on the XCR since I've noticed it might dull/leave some white marks if resin is not fully cured (like with any other epoxy resins in fact)