No matter your choice in surface adjustment it's a limited time you will get the advertised grit.

A friend attended a recent clinic that advised through testing you can expect 20mins of use out of a selected pad (500,1000,2000) before it double in finish ex 500 turns to 1000.

No matter your choice in surface adjustment it's a limited time you will get the advertised grit.

A friend attended a recent clinic that advised through testing you can expect 20mins of use out of a selected pad (500,1000,2000) before it double in finish ex 500 turns to 1000.

WOW! 20 minutes??
I would never have guessed that long.
My guesstimate from experience (no measurements) would have been 5 minutes for 4000 and 7 - 8  minutes for a 2000. Can't estimate a 500 or 1000.

Sandpaper of 1000 - 2500 grit FEPA last one use. That's a 3" x 4.5" piece folded in half to fit over a damp kitchen sponge as a flexible backing. (So, you can get 8 pieces from a 9"x12" piece of sandpaper.)

Don't know so far as I only have a handful of uses but I am guessing my Trizac 3000 (6" sanding disc) will get more minutes than most at advertised grit.  Pretty affordable on Amazon as well.

Trizact should last 20 hours, not minutes.
Well, maybe not really, but it will outlast anything short of diamonds, by a wide margin

Quote from: charlest on June 25, 2017, 07:42:33 PM

Quote from: ignitebowling on June 25, 2017, 06:24:46 PM

No matter your choice in surface adjustment it's a limited time you will get the advertised grit.

A friend attended a recent clinic that advised through testing you can expect 20mins of use out of a selected pad (500,1000,2000) before it double in finish ex 500 turns to 1000.

WOW! 20 minutes??
I would never have guessed that long.
My guesstimate from experience (no measurements) would have been 5 minutes for 4000 and 7 - 8  minutes for a 2000. Can't estimate a 500 or 1000.

Sandpaper of 1000 - 2500 grit FEPA last one use. That's a 3" x 4.5" piece folded in half to fit over a damp kitchen sponge as a flexible backing. (So, you can get 8 pieces from a 9"x12" piece of sandpaper.)

My guess was 10mins at best.

This was according to storm/roto grip. I'm guessing that's how often they change out on the production line.

Maybe that's one reason why it seems that surfaces on new balls are so erratic??
(Some 4000 grit finished balls look like 2000 grit and others look polished.)

Quote from: ignitebowling on June 25, 2017, 09:25:18 PM

Quote from: charlest on June 25, 2017, 07:42:33 PM

Quote from: ignitebowling on June 25, 2017, 06:24:46 PM

No matter your choice in surface adjustment it's a limited time you will get the advertised grit.

A friend attended a recent clinic that advised through testing you can expect 20mins of use out of a selected pad (500,1000,2000) before it double in finish ex 500 turns to 1000.

WOW! 20 minutes??
I would never have guessed that long.
My guesstimate from experience (no measurements) would have been 5 minutes for 4000 and 7 - 8  minutes for a 2000. Can't estimate a 500 or 1000.

Sandpaper of 1000 - 2500 grit FEPA last one use. That's a 3" x 4.5" piece folded in half to fit over a damp kitchen sponge as a flexible backing. (So, you can get 8 pieces from a 9"x12" piece of sandpaper.)

My guess was 10mins at best.

This was according to storm/roto grip. I'm guessing that's how often they change out on the production line.

Maybe that's one reason why it seems that surfaces on new balls are so erratic??
(Some 4000 grit finished balls look like 2000 grit and others look polished.)

This may be the most logical explanation I've ever heard.

Oh no, some one left the gate open again...

I thought NoHandVolcano retired. DAM