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cleaning up acrylic

Posted: Thu Apr 28, 2011 10:13 pm
by Mike
I have been meaning to try this for ages and finally got there today, Brasso!

When engraving or cutting acrylic I often get residue that I can't remove with anything, but a bit of brasso and some elbow grease has done the trick + it doesnt cause cracking in extruded acrylic.

it is slighlty abrassive but leaves a good shine too

Re: cleaning up acrylic

Posted: Thu Apr 28, 2011 11:45 pm
by Pedro_Hernandez
I agree Brasso is great for cleaning up, for deep scratches on perspex after its been cut I recommend Autosol or peek metal polish, then brasso then white spirit.

Peter

Re: cleaning up acrylic

Posted: Mon May 02, 2011 11:52 am
by Spooky
Arm & Hammer toothpaste also works very well :)

best wishes

Dave

Re: cleaning up acrylic

Posted: Sat Sep 03, 2011 4:03 pm
by PhillyDee
Just my 2p worth here :o

I supply Acetone (99.5% purity) and Isopropanol (99.9% purity) as well as cloths for cleaning.

Have tried them with MicroFibre Cloths, Kitchen Roll, Paper Roll (Workshop stuff) and Terry cloths.

The Acetone + Microfibre cloths are fantastic for removing of smut. The ones I sell are very fluffy, and very thick. They do not scratch, even with the acetone. It does discolour the cloth with the plastic colour, and requires frequent moving of cloth areas otherwise it smears the already removed stuff and leaves lines.
The isopropanol requires waaaay too much pressure, and is no good at all for smut removal!
Paper towels and kitchen roll scratch the plastic with tiny tiny tiny scratches.

So my top tip - Acetone and a Microfibre cloth!

Re: cleaning up acrylic

Posted: Sat Sep 03, 2011 4:38 pm
by Daven
Thats handy to know Phil - I'll be in touch when I need some more acetone :-)

I have been using a spray I got from 908 Ltd called Würth Industry Cleaner which is very good - smells good as well.

Cheers

Dave

Re: cleaning up acrylic

Posted: Sat Sep 03, 2011 8:30 pm
by StarLoc Adhesives
I wouldnt ever put acetone on acrylic of any type extruded or cast it usualy causes micro stress cracks all over the surface and if theres any nicks or deep scratches it can shatter the sheet

Isopropyl alcohol / IPA / isopropanol is fine on it but contact between acrylics and ketones such as acetone should be avoided

for a scratched surface i use autoglym plastics polish or jewlers rouge as a polish

Re: cleaning up acrylic

Posted: Sat Sep 03, 2011 8:53 pm
by PhillyDee
I have wiped down 150 (plus a load of small parts) or so A4 products with this, and no incident. The cloth is moistened first, and evaporates as soon as it has left the cloth. Although I would never bath it in there, as it will dissolve!

And of course, do not mix with IPA or similar, this is bad!

Re: cleaning up acrylic

Posted: Wed Oct 30, 2013 3:56 pm
by jpkerr
I use methylated spirits to clean my acrylic after engraving i also use it to clean the edges of gold/silver on black works a treat

Re: cleaning up acrylic

Posted: Fri Feb 14, 2014 6:19 pm
by Intri
I have recently started using washing up liquid onto my acrylic, a think smear just as you would do for glass and the works a treat. After the project has been cut and engraved I just give it a wash and maybe clean up with some ipa

Re: cleaning up acrylic

Posted: Sat Feb 15, 2014 4:10 pm
by Spooky
Docs right Phil, ketones are bad news for acrylics :( the micro stress cracks may not always be apparent for some time

cheers

Dave