Polishing Lexan

[coastwise]

Handy Andy abrasive!! Not a good idea.

[AndyG]

Agreed Coastwise

[Massimo]

Morning all,

Ok i tried brasso first & no great shakes, then pledge & it was a little better but still loads of scratches, and they are not deep scratches just minor ones but lots of them. Then i re-applied brasso and wiped off, then pledge and wiped off, then brasso then pledge etc. Now its looking a little better but no where good enough.

So my question is can i use a polishing wheel that attached to a drill or do i just carry on polishing by hand? Of-course with the wheel i must tread lightly but do you think it will do more damage than good

[Carel]

Save yourself some trouble and get Visor Polish from a bike shop. Little more expansive, but worth it.

[Massimo]

Tried to find it but no luck. Will try again today.
Thanks
Cheers

[Morph]

So my question is can i use a polishing wheel that attached to a drill or do i just carry on polishing by hand? Of-course with the wheel i must tread lightly but do you think it will do more damage than good

I did this and it works OK. Just be careful you don't get the lexan too hot otherwise the image distorts

[Tumbleweed]

I would'nt use a drill unless you can control the speed as slow as possible. If that wheel grips and runs, it'l leave you with a permanent skidmark.

[Boet]

SILVO......and aLOT of elbow grease. NEW soft cotton material, IE T-shirt. Works like a charm. Been getting scratches out for 30 years.

[Newguy]

Here's how bike screens are fixed.
You need:
1. 400 & 1200 grit sandpaper
2. Soft cotton buffing wheel that fits to a variable speed drill
3. A burnishing compound stick (Jewelers rouge) Builders warehouse sells a pack of 5 or 6 for polishing different kinds of metal.
4. Autosol scratch remover.

1. Start with 400 grit sandpaper & sand in one direction. Try only to sand the area where you want to get rid of the scratches.
2. Once removed or in the case of really deep scratches, have repaired them to a more acceptable level, take 1200 grit sandpaper and sand again. After a while, the plastic will start to clear again. If you continue, you'll eventually polish until it's quite clear and smooth.
3. Fit buffing wheel to the drill. It's important to have a variable speed drill, so you can let the buff rotate slowly~ otherwise the fast spinning buff will burn the perspex. Apply some of the burnishing stick to the pad. It comes with instructions, but remember that you don't have to apply tooo much. Then apply some to the screen.
4. Start to polish the screen. Again, only polish in one direction and do not alternate directions. Go carefully & slowly and you'll see the scratches magically start to turn clear & smooth. Continue carefully until the scratches are gone. Some deep scratches are not possible to remove but you can still improve them a lot.

Hope this helps.

[John Boucher]

I don't think Handy Andy is the right choice here Trikenut.

The Ammonia does funny things with polymers.

My vote for Mr. Min / Pledge without flavours or fragrances!

[Ian]

SILVO......and aLOT of elbow grease. NEW soft cotton material, IE T-shirt. Works like a charm. Been getting scratches out for 30 years.

Many thanks Boet, worked great for me, screen got scratched from a loose cover on the screen for a few days. Couldnt see through the area, almost like new now...

Think I have found some more muscles in my arm too ..

Cheers ian

[Slabfish]

Handyandy and potscourer . Two words---MR Min

[Massimo]

Well guys i tried
Pledge
Mr Min
Brasso
and some stuff i got from builders i think its called plasticlear X.

and the last one worked the best, screen not too bad not just one door is a little milky, was too eager.

[Boet]

Jaaaa, lyk vir my Ian is al een wat vir goeie raad luister.

[Massimo]

Problem is Boet that i already tried all the others before i got your response. But theres always a next time.