Any idea to remove scratch mark from arcrylic? beside buying new 1

LOL, can it be remove?

I heard nail pain (clear) can make it better, just want to seek for any better advice

It will leave a mark of its own. I think scratches can be polished off using a combination of ultra fine sandpaper and metal polish, but I haven't tried it so I'm not sure how well it would work.

Does not work, if you want to change from acrylic to white fog go sand paper the whole pc

But people have sanded and polished their heat sinks until mirror shine? There was this forummer who cleaned his scratched CDs until like shining new using the similar method. Acrylic not the same?

if its can be removed, how about just change to a new acrylic?

Not conflicting here?


This post has been edited by inoitu: May 20 2007, 09:01 PM

like lohwenli and inoitu mentioned, i think can be done at that way, cause the CD also can done that way. of course the result can't be like brand new.

but not deep scratch.

well, i was just suggesting..becoz honestly i dunno the method to remove the scratch..
if anyone feel like my suggestion was not relevant and offensive, im sorry for that

got idea, i think i will try to use cd polisher.

but, i think you better get 1 piece of arcrylic try first. (i mean small n useless sample to try first)

What on earth is "nail pain"?

i think he meant nail polish

sorry, not nail pain, is nail paint (clear one)

i think some other thread from overseas i think from bit tech...
there hav some one open a worklog...
n he mention the process to sand the acrylic n giv a good result..
clear n no scrath at all....tyr search...
i forgot which wan worklog...

heat sink is metal maa.. for sure can.. for cd i not sure.. clean it with alcohol like cd head cleaner?

imho if u sanded acrylic like lapping heatsink it will turn to white wor.. but if got more advance-chemical-reacted process i dont know la..

im quite positive we can remove scratches on acrylic by polishing it. Try use pumice or french chalk... thats what i use to polish acrylic denture during practical classes

I suggest rubbing compound. But hard to find this stuff. Normally used to remove scratches on clear coat paints and polyurethane finishes. Works on plastic as well.

EDIT: doesn't work on deep scratches though. fine scratches only.

This post has been edited by MetalZone: May 21 2007, 02:33 AM

Use a coarse sand paper then finer ones and then still finer. Cant remember what grid number use finally. Only finishing using alcohol and I didnt mean CD head cleane, I meant the disk itself was higly scratched.

just leave it alone, nothing can be done..

Nail polish also no use, coz it will make worse, got thinner substance.

Polish alone will remove the scratch but the surface of acrylic, the contour will not 100% flat if the scratch hard/deep you need to polish more. Result slightly out of reflective (bayang) image from acrylic.

i assure you even 2000 grade sandpaper wont get you the original chrystal clear smooth look of acrylic if thats what u're looking for. u need those liquid abrasives or rubbing compound.

BUT if you use Nail polish for deep scratch, fill the scratch with nail paint leave it to dry and polish with rubbing compound. But try at your own risk . Just and idea, i not yet done personally.

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Added on May 21, 2007, 2:54 amRubbing compound can be bought from car paint dealer or car spray workshop, ask the boss see he give you or not. Just a little amount only rite?

This post has been edited by N's: May 21 2007, 02:55 AM

Tamiya Rubbing Compound... works well with everything.

the sifu has spoken!

Sandpaper does not work, the top layer of the acrylic will get some mist effect. Can try but use the highest grade you can find.
Nail polish does not work cause of different density when light pass thru can see the crack at certain angles.
Tamiya Rubbing compound...this one I don't know.

I think if you want to tes I think can use microscope slides? I think its the same material.

Thats the problem with acrylic casings, must put in safe environment.

here is my experimen, using nail polisher. will try to find something such as rubbing compound to rub it and repeated the procedure for several time.

Before


After

That costs a bomb. Last time I bought, it was like rm30 for a puny lil tube. Worst thing is nowadays kids dont play Tamiya no more n cant even buy it from local shops. Scale modelling in Malaysia is a lost art. Nowadays youngsters oni wanna go CC n DOTA.