Author Topic: Removing scratches from perspex & plastic.  (Read 600 times)

Offline zeds4ever

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Removing scratches from perspex & plastic.
« on: November 29, 2011, 07:52:09 PM »
 ;) Had a problem with a piece of perspex on one of my instrument panels that was fairly severely scratched. I tried several recommended ways, but found the best & easiest solution was to use a product called "Gumption".
I applied this liberally to the affected part & then polished it into the  area in a circular motion with a damp soft cloth I then wiped this clean & repeated this operation a few times until the offending mark was removed.
It works a treat.

                                          Regards; Alan.  :D

 
« Last Edit: November 30, 2011, 07:59:44 PM by zeds4ever »

Offline luvemfast

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Re: Removing scratches frim perspex & plastic.
« Reply #1 on: November 29, 2011, 09:06:26 PM »
I've used a cutting compound too.
Worked well.

Offline gilltech

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Re: Removing scratches frim perspex & plastic.
« Reply #2 on: November 30, 2011, 06:30:09 AM »
I've heard that modelling guys use toothpaste??? as a fine polishing medium on clear plastic & perspex.
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Offline zeds4ever

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Re: Removing scratches frim perspex & plastic.
« Reply #3 on: November 30, 2011, 07:04:41 AM »
 ;) I tried the "toothpaste " method & several others including "cutting compound", but found that "gumption" was more effective.

                               Regards: Alan.  :D

Offline gilltech

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Re: Removing scratches frim perspex & plastic.
« Reply #4 on: November 30, 2011, 01:02:23 PM »
So who makes 'Gumption', Alan? Is it something available from the usual Supercheap etc?
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Offline RayRay

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Re: Removing scratches frim perspex & plastic.
« Reply #5 on: November 30, 2011, 01:19:11 PM »
Gumption is available at Bunnings/Coles in the bathroom and kitchen cleaning isle hehe.

A method I have used is to wet sand with various grit paper (I like to use 320, 800, 1000, 1500 and 2000 grits) the plastic, in my case a headlight, then move onto a liquid cutting compound or plastic scratch remover. Then wax it to seal it from the sun. Headlights look brand new!

Offline Zedsabbath

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Re: Removing scratches from perspex & plastic.
« Reply #6 on: December 06, 2011, 07:11:18 PM »
Must investigate that Gumption, sounds like good stuff

I tried RayRay's method years ago to remove deep scratches, fine emery first then used the old Repo car polish, worked well

For 240Z tail lights to make them like new, I used a loose (not stitched all the way out to outer edge) cloth buffing wheel on a bench grinder and a small amount of fine buffing rouge, very lightly buffing the tail light lenses, too heavy and the plastic burns, so practiced on an old broken one first....results were pretty spectacular

Pete

Offline Zedman240

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Re: Removing scratches from perspex & plastic.
« Reply #7 on: December 07, 2011, 07:20:24 PM »
I use a bench grinder with a buffing wheel and compound to polish scratched CD/DVD's (Thanks kids!) works like a charm.
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Re: Removing scratches from perspex & plastic.
« Reply #7 on: December 07, 2011, 07:20:24 PM »