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Lexan. Thermal expansion

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19rjs99:
I have never noticed any problems with my CP for Mame, but I had made a portable Golden Tee a while back. I took it to a party, in the trunk of the car, in the middle of summer. When I got there the Lexan was swollen over the trackball. There was a hump in the middle of the CP. After returning the unit to the house in the Air Conditioning it went away quickly.

Moral: Don't subject it to extreme temeratures. Also Make sure that the Lexan was in the correct temperature range before it is installed.

NoOne=NBA=:
Lexan IS Poly-Carbonate.
It's just GE's tradename for it.

Likewise Plexiglass is acrylic.

I would just make sure that the bolt holes for attaching it are oversize, and you should be OK for all but extreme exposure.
That will allow it to expand between the bolt holes.
If you make the bolt holes exactly the right size, and cinch them down tight, the Lexan has nowhere to expand, and will buckle, as mentioned earlier.

Stingray:

--- Quote from: Veinman on April 18, 2005, 01:48:33 pm ---Where are people finding lexan sheets? They didn't have it at Lowe's. I haven't checked yet at Home Depot or Menard's.


--- End quote ---

Look up "Plastics" in the yellow pages. Chances are you'll find several places in your area that sell nothing but lexan/ plexiglass.

-S

Bones:

--- Quote from: Stingray on April 18, 2005, 11:00:12 am ---
--- Quote from: BrokenBones1 on April 17, 2005, 08:54:39 am ---
The temperature here will go from about 0 in winter to about 40 in summer

--- End quote ---

What are you building an outdoor cab or something? ;) The temperature indoors only fluctuates by a few degrees. I can't imagine it would be enough to cause any significant expansion/ contraction.

-S

--- End quote ---

The cab is going in my garage & I just leave the roller door up for my dog. The temperature between the two is not much. Your right though, 0 degrees is probably a 5 degree exaggeration.

In summer it can hit 40-43 degrees at least a handfull of days every year.

That's Oz for ya....

sodapopinski:
It shouldent be a problem, like randy t said these spaces are recomended for objects placed tight together(ex. vinyl siding). You have one single piece of plexi. I wouldent expect it to be that effected. And, I live in edmonton(not the edmonton down under). are temp fluxes more than 40 degrees celcius. By the way, wife making you keep it in the garage?

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