high grit sandpaper options

Skiller1nc said:
I used 30 micron 3M Diamond Lapping Microfinishing film, the light green sheet with psa back
Click to expand...
Is it the type 675L I showed in the pic earlier post? That’s the one u need

I think I said earlier that the lapping film is not the correct one

I suspect the abrasive film loaded up with the “soft” steel
 
HSC /// said:
Is it the type 675L I showed in the pic earlier post? That’s the one u need

I think I said earlier that the lapping film is not the correct one

I suspect the abrasive film loaded up with the “soft” steel
Click to expand...
So it's the $12 3*8 sheets on ebay. It doesn't have any markings at all on it. Just a light green sheet with a white backer. It's possible it loaded up but it looked fine and i still had plenty of new left when I sanded the hard W2.

www.ebay.com

3M (TM) Diamond Lapping Microfinishing Film 3 x 8" PSA Back (30 micron 600 Grit) | eBay

Find many great new & used options and get the best deals for 3M (TM) Diamond Lapping Microfinishing Film 3 x 8" PSA Back (30 micron 600 Grit) at the best online prices at eBay! Free shipping for many products!
www.ebay.com
 
Skiller1nc said:
So it's the $12 3*8 sheets on ebay. It doesn't have any markings at all on it. Just a light green sheet with a white backer. It's possible it loaded up but it looked fine and i still had plenty of new left when I sanded the hard W2.

www.ebay.com

3M (TM) Diamond Lapping Microfinishing Film 3 x 8" PSA Back (30 micron 600 Grit) | eBay

Find many great new & used options and get the best deals for 3M (TM) Diamond Lapping Microfinishing Film 3 x 8" PSA Back (30 micron 600 Grit) at the best online prices at eBay! Free shipping for many products!
www.ebay.com
Click to expand...
Yes I’ve bought these
This is the correct one
I don’t know what to say...
I never hand sand that high, and if I do for simple steels then the rhynowet works fine

The diamond film is for high alloy wear resistant steels
 
HSC /// said:
Yes I’ve bought these
This is the correct one
I don’t know what to say...
I never hand sand that high, and if I do for simple steels then the rhynowet works fine

The diamond film is for high alloy wear resistant steels
Click to expand...
I've still got some left and i have some z wear and magna cut soon to be heat treated that i plan to do further tests with.
 
If it helps to get you a bit further down the road Pop's has 3M Microfinishing belts down to 9 micron. Up to S35VN they work really well. There is no belt bump so you can get a really nice belt finish before you switch to hand sanding. I find them so much nicer than AO belts. I do use a belt cleaner. They load up fast. I'm sure the paper is the same way.
 
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