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Author Topic: My soft wheel refurbishment trials  (Read 2544 times)

MakkyBrown

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My soft wheel refurbishment trials
« on: July 26, 2015, 05:31:16 PM »
I have been refurbishing my soft wheels for awhile and have been using some two pack epoxy floor paint I had lying around. It has been ok but the wheels were a bit stiff and it would crack. the wheels still polished/cut well but not ideal. My 300 grit wheel using this paint is still working nicely as good as a new wheel imo but the suface is cracked. My 140git wheel was completely worn out and the refurbishments using epoxy paint didn't last that long(maybe 100 stones).
So today I have just refubished my 140grit wheel and made up a new 60grit wheel. I have used a 2 pack polyurethane, and they look really good. Currently baking them in the caravan at 30degrees before using them. Tthe paint seems really good, still flexible and hopefully durable.  I'm going to remove my 8000 wheel off my cabbing machine and have the soft wheel sequence 60,140,300,600,1200,3000,14000. I could fit in an extra wheel but like the nice gaps between the wheels.
Attached is a pic to help anyone wanting to try this. For six inch wheels I have found, about 4mls paint, 2mls hardener (6mls total) with 10-15cts of diamond powder works well . I used 15cts on the 60grit wheel. On these coarse grits use cheap diamond powder. The motor driving the very basic rotisserie is a very cheap microwave turntable motor off ebay $4. Note the heat gun to dry the paint quickly(take care), scales and measuring syringes.  Make sure you don't re-use your brush or container with a finer grit. And do not throw away your mixing container/brush, use thinners to wash it out multiple times until the left over diamond powder is clean. It will sit nicely in the bottom of the container being so heavy when you tip out the thinners. I find about a third of the diamond powder you use is left in the bottom of the container and worth collecting for next time.
Hope someone finds this useful.
Cheers
Andrew
« Last Edit: July 27, 2015, 07:52:38 AM by MakkyBrown »

agemcutr

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Re: My soft wheel refurbishment trials
« Reply #1 on: July 26, 2015, 07:01:29 PM »
Have you tried shower waterproofing paint. Its polyeurathane and flexible to a point. Its a one part paint.=. just add in diamond

MakkyBrown

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Re: My soft wheel refurbishment trials
« Reply #2 on: July 26, 2015, 07:21:57 PM »
Have you tried shower waterproofing paint. Its polyeurathane and flexible to a point. Its a one part paint.=. just add in diamond
No I haven't but might look at it sometime  beers . The wheels I have just done feel/look really good about to fit them and give them a try.  :)

Gem Ranger

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Re: My soft wheel refurbishment trials
« Reply #3 on: July 26, 2015, 11:52:05 PM »
Very innovative Andrew. It would have never occurred to me to recoat used nova wheels. I hope the new compound works for you  8)

GR

MakkyBrown

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Re: My soft wheel refurbishment trials
« Reply #4 on: February 03, 2019, 04:29:40 PM »
Notes:The 2 pack polyurethane was not good for 60 grit as the diamonds pulled out. Was ok for 120/140 and would be good for wheels with higher grits. It was good on my 300grit wheel. The 2-pack polyurethane is more flexible than the epoxy floor paint.
Don't thin the paint heaps using the instructions for spray painting etc leave it thicker.
I have also read about people using two pack epoxy glue to refurbish there wheels but have never tried it.
« Last Edit: February 03, 2019, 04:32:59 PM by MakkyBrown »

steveo

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Re: My soft wheel refurbishment trials
« Reply #5 on: May 31, 2019, 12:00:21 AM »
Some of the guys in my area use E330 mixing it with diamond and running machine slowly putting on. There doing the finer grit 1200 - 50000.
Steve

MakkyBrown

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Re: My soft wheel refurbishment trials
« Reply #6 on: June 01, 2019, 09:03:25 AM »
Is it this epoxy Steveo? Think I have some somewhere might try it sometime.
https://www.aussiesapphire.com.au/epoxy-330-two-part-epoxy-adhesive-for-gems-or-opal

steveo

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Re: My soft wheel refurbishment trials
« Reply #7 on: June 01, 2019, 10:32:37 PM »
I thank it is MakkyBrown but I'll check this weekend.
Steve

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