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POLYCARBONATE RE: Coretex lids was RE: riccia fluvitans as anti-jumping device?
Hi to All,
There is a product out there that may fit some of your particular needs. It
is used to build the roof and walls of greenhouses. It is in essence
"corrugated lexan [polycarbonate]". One of its trade names is, Lexan
Thermoclear Sheet, also called "twin or triple wall polycarbonate sheet".
It is transparent, but looks like cardboard when viewed from the edge. It
is a double walled sheet with internal cross supports every fraction of an
inch [1/8", 1/4" I don't recall]. It is structurally very strong and light
weight. I am sure it could span a 10G with no problem, maybe even a 20G L.
The problem is in cutting it-remember, life is just a bunch of trade-offs.
You need a table saw with a special plastic cutting blade. To do it by hand
would be ok in the plane that the cross supports run in, but very hard in
the other plane [going across the cross supports]. It comes in different
thickness. An old catalog suggests $1.95/sq. ft. in 1/4" thickness in a 4'
X 10' sheet. Also, because it is polycarbonate, it absorbs less moisture
[virtually no bowing] than other common plastics when used over water.
Wright Huntley has pointed this out several times.
The material being discussed below, I think, is opaque white, and used for
This outfit handles the material I mentioned above:
> -----Original Message-----
> From: BigJohnW at webtv_net [SMTP:BigJohnW at webtv_net]
> Sent: Wednesday, August 22, 2001 12:11 PM
> To: killietalk at aka_org
> Subject: Re: Coretex lids was RE: riccia fluvitans as anti-jumping
> Hello David
> Where did you buy this stuff? How thick is it?
> Is it very flexible or does it not warp when used on spans over a ten
> gallon tank?
> I have always gone to local hardware store and had them cut window pane
> glass for my covers.
> this has always worked well for me, except that they do have the sharp
> edges that can cut me.
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