Taking out deep scratches on acrylic

Daddyrawg · 08/06/2020, 02:28 PM

When you sand out deep sracthes should the grit be a lower value or higher value for the deep scratches? In other words what sands out deep scrathes better 400 or 3000 grit?

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Sk8r · 08/06/2020, 06:36 PM

The higher the number I beleive is the finer sandpaper. Frankly, given the softness of acrylic, I'd use fine sandpaper on the whole job, so as not to contribute more gouges outlying the damage. Just patient, gentle and gradual. Tiring work, but over all apt to be kinder to the tank. You can also work 'wet' with fine sandpaper.

Daddyrawg · 08/06/2020, 07:07 PM

I was thinking going 800 grit since 1000 didn't take out the heavy scratches

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Sk8r · 08/06/2020, 07:35 PM

800 will be a little rougher. Don't bear down. Just a light but persistent touch.

Daddyrawg · 08/06/2020, 08:12 PM

Ok its just that it has some scratches that 1000 isn't doing it, ill go soft and gentle then follow up with novus

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Daddyrawg · 08/11/2020, 09:06 PM

Novus sucks btw..

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08/06/2020, 02:28 PM	#1
Daddyrawg Registered Member Join Date: May 2018 Posts: 814	Taking out deep scratches on acrylic When you sand out deep sracthes should the grit be a lower value or higher value for the deep scratches? In other words what sands out deep scrathes better 400 or 3000 grit? Sent from my SM-G973U using Tapatalk

08/06/2020, 06:36 PM	#2
Sk8r RC Mod Join Date: Feb 2006 Location: Spokane WA Posts: 34,628 Blog Entries: 55	The higher the number I beleive is the finer sandpaper. Frankly, given the softness of acrylic, I'd use fine sandpaper on the whole job, so as not to contribute more gouges outlying the damage. Just patient, gentle and gradual. Tiring work, but over all apt to be kinder to the tank. You can also work 'wet' with fine sandpaper. __________________ Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.

08/06/2020, 07:35 PM	#4
Sk8r RC Mod Join Date: Feb 2006 Location: Spokane WA Posts: 34,628 Blog Entries: 55	800 will be a little rougher. Don't bear down. Just a light but persistent touch. __________________ Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.

08/06/2020, 07:07 PM	#3
Daddyrawg Registered Member Join Date: May 2018 Posts: 814	I was thinking going 800 grit since 1000 didn't take out the heavy scratches Sent from my SM-G973U using Tapatalk

08/06/2020, 08:12 PM	#5
Daddyrawg Registered Member Join Date: May 2018 Posts: 814	Ok its just that it has some scratches that 1000 isn't doing it, ill go soft and gentle then follow up with novus Sent from my SM-G973U using Tapatalk

08/11/2020, 09:06 PM	#6
Daddyrawg Registered Member Join Date: May 2018 Posts: 814	Novus sucks btw.. Sent from my SM-G973U using Tapatalk