HDPE diaphragm

[Coffee]

Originally posted by MJ Dijkstra
Hi,

I could send you a solid tube containing the Mylar from Holland, but I am forced to calclulate 17,50 euro for package and transfer.

Best regards, M.J. Dijkstra

mj-dijkstra@zonnet.nl

thanks, I´ll contact you in case of not to be able to solve this problem.

[Coffee]

Originally posted by Zvon
HDPE would be a poor material selection for an ESL membrane because:

1. Poor mechanical properties
2. Creep/relaxation
3. Non-linear stress-strain relationship
4. Try heatshrink and you'll get a heat-sag :) (I use mechanical tensioning)
5. Glueing/coating problems

HDPE is good for pond lining, geotextiles, geofabric etc. but not for ESL membrane.

Better purchase some mylar from Martin or Rob or ask Mark nicely for some Lumilar (if memory serves well).

Regards,

Great, thats what I wanted to hear, thanks.

yesterday i read some materials about technical properties and i realized some things that youve mentioned, hdpe has worser length variations with temperature (about 2 times bigger) and worser modulus of elasticity, but youve wrote it before than i do
;)

thanks