Polishing Perspex / Acrylic windows??

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Does anybody know if it is possible to polish perspex windows? Mine are in a bad way, not crazed more like they have been sandblasted! /forums/images/graemlins/confused.gif Just thought I would ask, before going to the expense of replacement?

Charlie.
 
If they're badly scarred/scratched/greyed-out, you should really replace them. Watch out for pricy merchants in the sailing mags though. One co. quoted me £42 per window. I got them cut locally in 5mm acrylic at a total of £94 for 11 windows. They're all in now and what a difference! If you need any guidance on doing them, I may be able to help: learned through bitter experience!
 
Thanks both for the input, David, could I pm you for details of that Company?
 
You need two different polishes

Coarse polish with brasso and keep it wet. When done coarse polishing change the polishing cloth/mop and use silvo. I found that a re-polish takes about two hours per square foot .

Its made easier if you have an electric polisher. Buy the polish mops from a normal engineering supply company
 
Bu99er! think I will fit new windows! Thanks for that. /forums/images/graemlins/smile.gif
 
Sign makers are often a good source of acrylic type materials. Sometimes they have fairly large offcuts they want rid of quite cheaply, and if you ask nicely they might even cut things to shape for you. Well worth asking.

John
 
That's worth a thought! Ta! /forums/images/graemlins/smile.gif
 
Hi. No sweat. I took along samples of the windows (there are three different sizes on my boat) and they cut them exactly. Cutting your own can be a pain, since saw blades tend to weld the join as you go with a nasty burr because acrylic sheet has a very low melting point; there are ways to avoid this, but for £100 I figured it wasn't worth all the bother. So you'd have to be careful that any same-size/shape windows were in fact identical before sending one off as a template. These lads did a really good job: they all fitted sweet as a nut. Mind you, they are up here in Newcastle, but would certainly do it by post. Errrmmm ... what does 'pm' mean? Here's my e-mail: dguthrie@btinternet.com. Send me yours and I'll send you the info - I need to dig it out and I think their card's on the boat.
 
[ QUOTE ]
Errrmmm ... what does 'pm' mean? Here's my e-mail:

[/ QUOTE ] PM means personal message. Either click on "Send a message" or click on the user's name and you'll get his profile, then down at the bottom left hand corner you'll see the option to send a personal message. If you want to keep a copy dont forget to tick the box.

If you get a PM there'll be flahing icon next to "user options" at the top of the normal pages. Click on it to view the message. You can otherwise view all your messages by clicking on "Check messages"


It is a bad idea to put you email address on the forum unless you really want to be swamped with spam. Better to send it by PM.
 
I have succesfully used a product called Micromesh to remove scratches in aircraft canopies. This is basically very high quality carborundum pads in grades up to around 3000. http://www.flightstore.co.uk/micromesh_k....412.dept_l3.0/

Lots of elbow grease, lots and lots of water and the result although perfectly transparent is usually no longer optically perfect. For ports and hatches it might be more than acceptable.

A kit is less than £20 but I'm not sure how much area it will do, perhaps one or two foredeck hatches? With an aircraft canopy costing upwards of £1500 its worth a try before replacement!

The hatches and ports on my boat are shot so I will be trying this myself this winter .
 
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