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Tagged: resin-techniques
- This topic has 12 replies, 2 voices, and was last updated 2 years, 1 month ago by
Joe greco.
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July 6, 2017 at 6:39 pm #9370
Tobie
GuestHello,
I’m new to resin and have an issue with sanding.
Once my piece is cured, I pull it out and sand the sides and sometimes the odd edges that might be a little wonky, when I do this I end up sanding off the nice shiny outer layer. If I sand enough I can sand it all off and make the piece matte but I’m wanting it to be shiny.
How do I sand off my rough edges without removing the top layer of shine, I’ve watched a million vides but don’t understand how to fix this aside from doing another thin layer of resin overtop. I’ve tried various metal cleaning agents as suggested in various videos but this doesn’t bring the sanded areas back to their previous shine.
Any tips or tricks would be greatly appreciated! Thank you!
Best, Tobie
I am using Amazing Resin.
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July 7, 2017 at 3:36 pm #9391
Katherine Swift
KeymasterHi Tobie,
You will want to sand and finish with a 1000 grit or higher sandpaper. I like to end with these finishing papers (https://www.riogrande.com/Product/3M-Tri-M-Ite-Imperial-Polishing-Paper-Assortment/337308). They get my pieces as close to shiny as possible. After using the papers, I like to use the Novus polishing kit which gets them a little more shine as well. https://shop.resinobsession.com/collections/tools-and-supplies/products/novus-resin-polishing-kit
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July 17, 2017 at 8:58 pm #9511
Tanya
GuestWhat about spraying it with clear acrylic spray after sanding with a fine grit? Would that bring back a high shine?
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July 18, 2017 at 10:11 pm #9523
Katherine Swift
KeymasterYes, but you will want to be sure you end with a 1000 grit or higher sandpaper. Otherwise, you will still see ‘frostiness’ underneath the spray.
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March 20, 2018 at 6:19 am #12760
Jo
GuestIf I don’t want to lose the shine, which grit should I start with? Would I use these polishing papers to start? Thank you.
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March 20, 2018 at 1:04 pm #12765
Katherine Swift
KeymasterYou can, but papers that fine aren’t going to take off any resin. If you have rough edges, or need to take off a lot of resin, you will need to start with a coarse sandpaper.
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March 10, 2019 at 6:39 am #34615
Rahul Bhasin
GuestHi , please Suggest the resin name and company making the resin along with it’s contact details.
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April 4, 2020 at 8:43 pm #83977
Joni Bratton
GuestYou will need to use wet sand pads starting with a course grit and progressively move to a finer grit. For a mirror like shine you can go up to an 8,000 or 12,000 grit.
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July 6, 2020 at 8:34 pm #84959
April
GuestI have found a new way to sand and buff. I had problems getting my pieces back to shinny as well. After sanding off the edges I used a nail buffer that makes nails shinny and buffed the frosty look back off, and my pieces are now shinny again. I used one of those multiple sided nail buffers where the grit gets smaller and smaller as you sand with each side. Worked like a dream!
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July 26, 2020 at 4:13 pm #85187
Paula Marquis
GuestMy issue is that I am casting several round spheres, these are large ones, not the jewelry type.
I also had this issue with using a skull mold.
After demanding there is the mold line rings around the middle.
I have tried the sanding part but can never get that clear shine back.
Are there any books or videos dealing with ball shaped molds the ones I have watched are for jewelry and didnt really address the issue of the mold ring all the way around the middle. -
July 26, 2020 at 4:14 pm #85188
Paula Marquis
GuestSo having to do this twice step the first one had a wrong email attached to it, even thought it is not published.
My issue is that I am casting several round spheres, these are large ones, not the jewelry type.
I also had this issue with using a skull mold.
After demanding there is the mold line rings around the middle.
I have tried the sanding part but can never get that clear shine back.
Are there any books or videos dealing with ball shaped molds the ones I have watched are for jewelry and didnt really address the issue of the mold ring all the way around the middle.-
July 27, 2020 at 5:37 pm #85198
Katherine Swift
KeymasterHi Paula,
Have you checked out this article for ideas? https://www.resinobsession.com/resin-frequently-asked-questions/how-to-sand-resin-smooth/
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December 26, 2020 at 10:35 pm #91359
Joe greco
GuestGet as many different grits of sandpaper that you can. Mine range from 80grit to 5000 grit. Start with the lowest(roughest) and keep increasing the grit each time. Once you get past 220 grit start using water while you sand. When you reach 5000 you will be at that original shine. Also, a really thin layer of resin will do the trick. Another way I found that works is to buy some cans of spray resin. You can find this anywhere on the internet but I shop on Amazon. That stuff is great for patches and mistakes.
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