[TCML] Coil forms, any good?

[bartb]

Matt, that's interesting. I imagine they do this to promote flexibility 
and reduce cracking. Could be a problem for coils I guess. Moisture 
isn't our friend when the form becomes saturated. Probably a good idea 
to seal this type of form as was common practice some time ago.

I will personally just keep my eye out and stay away from it.

Thanks for the info.
Bart



Mddeming at aol.com wrote:
>  
> Hi All,
>  
>     One note of caution. Some thick-wall PVC  pipe is marked "CELLULAR CORE", 
> and close inspection will show an inner and  outer layer of hard PVC and a 
> center layer of slightly off-white stuff that  looks like extremely high-density 
> Styrofoam. It has been reported that this  type, if stored outdoors, can 
> absorb water into the core section and needs  to be dried like lumber and the ends 
> sealed before use, or you may get  into trouble. Some folks have oven-baked 
> it at low temperature or used a hair  dryer, some have kept it in a low 
> humidity room for weeks and checked the  core ends with a woodworker's moisture 
> meter, and a few have used  it as is, with no reported trouble, but I thought I'd 
> mention it.
>  
> Matt D.
>