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Super Nova Resin Bond Diamond Lap Discs?

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Author Topic: Super Nova Resin Bond Diamond Lap Discs?  (Read 441 times)
James D. Farrow
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« on: March 26, 2016, 09:56:57 am »

Anyone try these Super Nova discs?

http://www.johnsonbrotherslapidary.com/Laps_Resin_Bond-8_inch.html

I know Nova make wheels for cabbing but just stumbled across these
while searching for higher grit discs.

Looking for an alternative to the Hans Lapidary ones that take weeks to
come from China.

Thanks,

James
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James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"

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Trails
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« Reply #1 on: March 26, 2016, 12:05:52 pm »

Never tried Johnson Brothers lap discs but I had looked at them before. I have a "nova" like 8" wheel from these guys though, and as it's not as soft as my real Nova's, it does work as specified after breaking in. Just makes a hell of a lot of noise and is still really stiff compared to the real deal.

I will add that Hans lap discs seem to be pretty ****.. I figured I'd try the metal plates, 1200 & 3000, to try to reduce wear on my crystalites. I haven't broken them in yet (hans laps), but right from the package the 1200 cuts like a 180 and the 3000 like a 600. Surprised me.. and I was even running the machine slow. I do like Hans grinding wheels though, for the price.. and free shipping, they grind well.

I have sheets of 1/6" gasket cork-board, and I've been bating an idea around to make some 8" discs and charge with diamond paste. I just don't know where I put them and it's close to packing/moving day.. so they will be found. But that's another idea..
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James D. Farrow
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« Reply #2 on: March 26, 2016, 12:40:16 pm »

I bought the Kent Blades (in Montreal, Canada) steel discs (60 to 3000) and they are not bad.
The rough ones (60 or 80) are not as good qualify as the ones I got with my Ameritool and probably
won't last as long. But for $18.00 CAD$ they are O.K. The higher grits are fine as they don't get a lot
of abuse so they look like they will last quite a while.

They are fine for hard stones (like Jasper, Aventurine, etc...) but really chew up Sodalite and Serpentine.

Got the Hans soft discs (3000 to 14000) a while ago and they seem O.K. Wanted to get
a 50000 as I do not like diamond paste. Makes a mess and just washes off with the water.

I am in Canada so I don't get free shipping on Amazon or from China and it was as much as the disc cost.
That's why I was searching for a 50000 grit mesh disc. The Johnson Brothers ones say made in the USA
so that's a plus as well.

These are the disc I have:

60 Grit (Steel)
80 Grit (Steel)
150 Grit (Steel)
240 Grit (Steel)
500 Grit (Steel)
800 Grit (Steel)
1200 Grit (Steel)
1500 Grit (Steel)
3000 Grit (Steel)

325 Mesh (Brown)
600 Mesh (Red)
1200 Mesh (Blue)
3000 Mesh (Yellow)
8000 Mesh (Pink)
14000 Mesh (Beige)

Polishing Pad (White)
Leather Pad (Brown)

I use all the steel one on hard stones, then switch to the 3000 and up mesh.
For the soft stuff, the 80 t0 240 steel, then switch to the mesh discs.

James

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James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"
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« Reply #3 on: March 26, 2016, 09:03:37 pm »

You shouldn't be using water with diamond paste.  Use it on a Tech-10, felt or smooth leather polishing pad, alone or with some extender fluid.  Shouldn't be messy at all.
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Robin

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« Reply #4 on: March 26, 2016, 09:30:52 pm »

Eastwind makes 50K (and 100K) resin disks. I buy them from Kingsley and combine different grits to get the discount. These are flexible enough that a really light touch allows the lap to conform to the profile of the dome. They last me a long time, so the price isn't bad when figured over time.

For steel laps, the Inlands have been good. Their laps are the one Inland product I would actually recommend. I haven't used many others, but have been happy with Inland.
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James D. Farrow
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« Reply #5 on: March 26, 2016, 09:42:35 pm »

Lol! I guess that's why I had a mess. Thought you had to use water.

Will check out the ones at Kingsley.

Thanks!

James
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James D. Farrow
Mississauga, Ontario, Canada

"No more trains will be sold once the magazine leaves the station"


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