Backyard Aquaponics
A place to discuss aquaponics

Anyone know where to buy these online?

I want to make a small green house for my Gbs but cant find people selling these locally.

Just found 8mm ones but wow so expensive

http://cgi.ebay.com.au/ws/eBayISAPI.dll ... 0799217744

Mulford Plastics in Sydney has "Twinwall" Polycarbonate. I think your local Bunnings will probably also have it, sometimes called "Lexan" (a brand name for polycarb).

Twinwall Polyprop might also be appropriate (Corflute, Fluteboard, Multiflute etc) if you can find the "natural" tint, but I've found it very difficult to source in small quantity.

You could also try calling a few local sign writers or printers as they use them for signs

I've seen something like this called sign board at the local plastics dealer but I'm not certain what type of plastic it's made from. Comes in different colors and clear. Still wouldn't be cheap but might be cheaper than polycarbonate twinwall you posted. I was quoted around $19 a 4 x 8 sheet for some that about matched my Harbor Freight Polycarbonate greenhouse. My guess is what you want will be thicker and more expensive.

francois is using some kind of sheeting that might be a polycarb..
viewtopic.php?f=18&t=7224&hilit=francois

Here is the stuff
http://buybuildingsupplies.com.au/ampel ... _1192.html
If you were in Melbourne I would go here...maybe talk to them and see if they know someone in Sydney
http://www.robotbuildingsupplies.com.au ... all&type=2

The sign panels are fluted Polypropylene ("Corflute", "Coroplas", "Multiflute" etc). It is available in clear ("natural") but I've not been able to find it in small quantity anywhere in Australia.

Yep... and Coflute can be plastic welded...

Try going to your local real estate...most of their signs are coreflute and they should know a supplier

You can get White, Yellow, Black, Red, Blue etc in any quantity you desire and it's dirt cheap. Find the "Clear" (it's not really clear, but translucent) is another matter entirely. White would be OK in warmer climates, it's semi-opaque.

If it's not against forum rules to say, I actually wholesale Corflute so I've looked into this over and over again. I can buy "clear" but only in tonnage. Not enough demand for tonnage.

Actually the clear would probably be the last type to use... any sunlight passing through it would probably cause algael problems...

You must mean for signs not greenhouses.

Actually I was thinking of when they're used (plastic welded) for grow beds or tanks... greenhouses, no problem..