Perspex Windscreens - Thinkness

[jellison]

Anyone know what thinkness of Perspex screens they run in the BTCC?

Edited by jellison on Monday 6th September 15:16

[Asterix]

Not one to normally to the PH spelling police thing...

Thickness?

[jellison]

Ha(!) at least th mistake was in the thread!

Yep, you can get it in different thicknesses. Glass weigh a Sh*tload.

[Nick M]

jellison said:

Anyone know what thinkness of Perpex screens

They're actually polycarbonate.

I only mention this in case you're thinking of using perspex, because perspex has a tendency to shatter and be less impact resistant thant polycarbonate.

It also scratches more easily.

If you need to pass any sort of scrutineering then you'll probably need to go with polycarbonate - you *may* be able to use perspex for, say, rear door windows, but wouldn't like to say for sure.

[jellison]

Gotcha Polycarb.

Any idea what thinkness - easy mistake to make!

[rb5230]

are we talking thickness here? ive not heard of thinkness before, and 3 times in 1 thread before the end of the 1st page.

if it is the thickness you are after i believe around 6mm is fine, if you are asking for/about thinkness i really am stumped.

Edited by rb5230 on Monday 6th September 15:26

[_Batty_]

i'd imagine the Fords are about 1/2 as thick as everyone else.

[CTR Arachnid]

I think Blue book says minimum is 4mm

[jellison]

hahah - Oops

Thickness! I do some research / check the blue book.

Cheers

[frodo_monkey]

4mm is the Blue Book minimum.

[Scuffers]

the stuff you need is Makrolon AR

http://www.sheet.bayerpolymers.com/index.php/fusea...

[jellison]

frodo_monkey said:

4mm is the Blue Book minimum.

Yep found that too - cheers

Link does not work. [http://www.sheet.bayerpolymers.com/index.php/fuseaction/ti_filedownload/sprache/e/filedownload/MF0008.pdf?PHPSESSID=b3ac3a6f4b18ca23af68acbc537e5009].

Found http://www.theplasticshop.co.uk/polycarbonate-shee...

[Scuffers]

jellison said:

frodo_monkey said:

4mm is the Blue Book minimum.

Yep found that too - cheers

Link does not work. [http://www.sheet.bayerpolymers.com/index.php/fuseaction/ti_filedownload/sprache/e/filedownload/MF0008.pdf?PHPSESSID=b3ac3a6f4b18ca23af68acbc537e5009].

Found http://www.theplasticshop.co.uk/polycarbonate-shee...

works for me?

try this:

http://tiny.cc/hhmdg

Makrolon® AR is a coated Polycarb, and at 4mm can withstand stones etc. and more importantly, can stand the wipers going on it without scratching, it's also just about flexible enough to do curved screens without heat forming.

[stumpage]

jellison said:

frodo_monkey said:

4mm is the Blue Book minimum.

Yep found that too - cheers

Link does not work. [http://www.sheet.bayerpolymers.com/index.php/fuseaction/ti_filedownload/sprache/e/filedownload/MF0008.pdf?PHPSESSID=b3ac3a6f4b18ca23af68acbc537e5009].

Found http://www.theplasticshop.co.uk/polycarbonate-shee...

We are cheaper than that.

Web link on my profile.

[TVRleigh_BBWR]

Anyone know what's the best thing to cut it with.

[tr7v8]

I'd use a jigsaw with the finest tooth blade you can get. There is a technique to cutting these sorts of plastics as if you cut too fast the plastics melts & causes problems.

[jagracer]

TVRleigh_BBWR said:

Anyone know what's the best thing to cut it with.

I use one of these air cutters http://www.machinemart.co.uk/shop/product/details/... but as has been said you need to be careful not to melt it.

[jellison]

jagracer said:

TVRleigh_BBWR said:

Anyone know what's the best thing to cut it with.

I use one of these air cutters http://www.machinemart.co.uk/shop/product/details/... but as has been said you need to be careful not to melt it.

Ah yes I have one of those (or my man does).

[Scuffers]

Jig-saw is quicker/easier if you talking windscreen sized bit's.

that said, I bough one of these:

Exakt Saw

[jellison]

I think jigsaw will be best and trim with file.

Poly is 1/2 teh weight of similar thickness / size glass so good saving ( have to run with a bloody screen next year! (ARSE).