Dura-Gold Premium 5" Gold Sanding Discs - 40 Grit (Box of 25) - 8 Hole Pattern Dustless Hook & Loop Backing Sandpaper for DA Sanders, Aluminum Oxide Abrasive - Sand Automotive Paint, Woodworking Wood

This product has some good points - and one really big bad point.The first bonus is being able to even find 40 grit paper. Go ahead, try it. Things may have changed since I bought this but at the time I considered finding this product to be a lucky find.The abrasive on this sandpaper (40 grit) is excellent, and has good 'cut' (sharp edges to the abrasive particulates).I am using this to sand 100 year old plaster - LIME plaster not the joke gypsum stuff most people think of. In a sense you could say I am using it to sand stone, because that is what true lime plaster turns into - limestone. In some spots the floating of the original plaster job was done so well the finish is like smooth glass, yet this product is able to cut into it with a little pressure.Unfortunately the 'loop' backing (the fuzzy felt stuff that the 'hook' velcro attaches to) is just inadequate. I mean it is BARELY there.Within about a 15 minute period of using this product the backing deteriorates so badly that the disc flies off the sander.And when this happens - is the grit still good? Yeah, it's still decent enough to sand with - if you want to do it by hand! But if that was what I was looking for why would I buy this?!?Why only 2 stars then? Why not more? Because this is NOT 'cheap'. I paid $15 for a pack of 25. Do the math that's $0.60/ea.Compare that to the 'cheapo' brands out there that are $20/100 ($0.20/ea) and you would expect this thing to at least do the job of 3 of those. But I had some of the cheapo stuff lying around and... you know it - it did NOT.Is the grit decent? Yes, I believe it is. Does it sand well? While it is able to stay attached to your sander yes it does. Is the quality enough to justify the additional cost? ABSOLUTELY NOT. This product is 3x more costly than others yet fails to perform in a manner that one should expect for that premium price.Stay away from this stuff. Buy the 'el cheapo' stuff instead. Sure you'll go through more discs, but in the end your 'hooks' on your sander will be less clogged (bc their crappy 'loop' fabric breaks down and sticks to it). Do the math and you will find yourself shaking your head (like I did) when you realize that the crappy sandpaper you tried to replace with this 'premium' product actually saves you more money and effort.If you are reading this 'Dura-Gold' - for the price you charge you should be giving us better 'loop' fabric. SHAME ON YOU.

I have tried a number of disc brands (such as Black & Decker, 3M, and Diablo) and have found there are always trade-offs. Discs are either unreasonably expensive, or have one or more problems such as: poor quality abrasive that crumbles off the paper, cheap loop-backing that disintegrates and clogs up the hook surface on my sander, flimsy paper that rips off as soon as you snag on a splinter, or they simply don't last very long.I ordered a box of 50 for both the 80 grit and 120 grit Dura-Gold discs, and although they certainly aren't the highest quality available, I think you'll be hard-pressed to find a better value. The abrasive is well adhered to the paper (I've yet to have a single grain of it remain on a work-piece), the hook-and-loop connection is solid, the paper is strong and resistant to tearing, and they last a reasonably long time. ~32¢ per disc is a better price than anything I've ever bought at a hardware store, and they provide the sort of performance and durability that you would expect from much pricier disks.

About Dura-Gold - Premium - 400 Grit - 5" Gold Sanding Discs - 8-Hole Dustless Hook and Loop for DA Sander - Box of 50I have been using the same 400 grit disc now for about two days. I haven't noticed any degradation of the abrasive coating while sanding down hardened UV resin to a "smooth as glass surface finish" using a Milwaukee random orbital sander. I also used the disc for hand sanding. The disc has not loaded up like other types of abrasives. I am using these to prep sand a consistent base matte finish, just prior to mirror finish sanding the coating thru 12 steps from 1500 to 12000 grit. All good. Yippee! Mirror-mirror on the workbench, make it shiny, my thirst to quench. Next...

I was recently sanding some rough fiberglass off a canoe I was patching. (Dewalt random orbit 5" single speed) I had started with 3M 80 grit, and very quickly completely clogged up my last 3 discs. I'd completely run out and the only other paper I had on hand was the 150 grit Dura-Gold, figured I had little to loose so went for it and one sheet outlasted the 3 sheets of 80 grit 3M. I was blown away. Not only that using a crepe rubber piece I had most of the Dura-Gold came clean for a bit more life, whereas the 3M would not come clean at all. I'm now in the process of switching all of my sandpaper over to Dura-Gold. My only negative comment at all is that I do question the actual grit count. The 150 did seem a bit courser then what I'm used to, but that may very well just be that it is a sharper material. I'm no expert by any means, just kind of an odd job and hobby level tinkerer. I know I'm sold on it, even if I potentially need to use finer girts then I would have previously - still works better and lasts longer!

Strong paper - good backing and hold. Better than most. Pretty close to life of the Sand Net which is advertised as 10X. Will purchase again. I burn through a lot of Sand Paper and have bought at least 300 sheets in the last 5 months so have good comparison on the quality.

I ordered these to help with my sanding of resin and wood projects.These can clear A LOT of wood/resin FAST. So much so that I actually checked several times to make sure these were actually 320 and not 100-ish.The hook and loop has held for every project I’ve done so far. I’ve not thrown one of these discs yet!There isn’t one single thing I dislike about these.I’m very happy with these and plan on ordering more from various grits.

I've been sanding furniture for many years.Seems reviews on Amazon are spurious, sometimes frivolous.Used a few dozen of these Dura-Gold's and they resisted getting impacted with material.Seemed to keep sharp without shedding the medium (grit) for a descent length of time.I'm using on hardwoods mostly and some clear-coat painted surfaces. They hold up good.So go ahead, get pick your grit and happy sanding to you bruh.

No bad but to expensive for that kind of quality

Good quality sanding sheets and good value for for the costs. I’ll probably never use all of them lol

Not a great quality sand paper. It breaks very easily and case is not as advertised.For woodworkers look for a better quality paper.

Excellent quality at a good price

Bonne durabilité.