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PBT graphics topsheets

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PBT graphics topsheets

Postby Fossilpop » Thu Jul 08, 2010 5:00 am

Hi all,

I am long time forum lurker but this is my first post.

I have built 2 Kiteboards so far, with expected (newbie)limited success.

The first board worked successfully but was heavy.
The second board had finishing difficulties, but OK.

I now want to experiment with printed, PBT top & bottom sheets.

I have seen & read about boards built using PBT (mainly in the USA)but have been
unable to find a PBT supplier in Australia.

The BROKITE site shows PBT sheets being used.

Can someone please give me some information on;

1. Thickness of the PBT sheets used.

2. Any aliases used e.g. brand names for the PBT sheets

3. Suppliers in Australia if possible.

4. techniques for printing on the subsurface of the PBT (what type of inks etc.)

5. Bonding techniques required.

Fossil :thumb:

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Re: PBT graphics topsheets

Postby foam-n-fibre » Thu Jul 08, 2010 12:16 pm

Sorry, can't answer any of the above questions, but one guy I know was using it here in Canada. He found that you have to be incredibly clean when doing it. Static electricity attracts small bits of dirt and if you get anything between the PBT and the table it would dimple the PBT. Surprisingly hard to get that perfect finish that you want it seems. Not sure what the solution was. Maybe a thin layer of something slightly soft between the 2 layers might be the answer, but I've never tried it.


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Re: PBT graphics topsheets

Postby Bigdog » Thu Jul 08, 2010 5:19 pm

I have used the white fleece backed pbt from on a couple of bottoms. As Pete says the dimple from any dust are an issue but that is solved by being super clean when you press. The main thing I do not like about is the coefficient of expansion is very different than glass or carbon. So if you do only 1 side of a thin board it can curl like a potato chip. Also it is really not repairable if you trash it. But lots of high volume shops use it.......

I am sticking with epoxy/glass or epoxy/cotton for skins for the above reasons.


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