Cheap polymer with high glass transition temperature
Cheap polymer with high glass transition temperature
(OP)
Hi All,
I am designing an enclosure for some electronics that will get fairly hot. I had originally used ABS for this and find it deforming. I see that polycarbonate is much better. Does anyone have a recommendation comparable in price to polycarbonate and abs that might be a better choice?
Thanks
I am designing an enclosure for some electronics that will get fairly hot. I had originally used ABS for this and find it deforming. I see that polycarbonate is much better. Does anyone have a recommendation comparable in price to polycarbonate and abs that might be a better choice?
Thanks





RE: Cheap polymer with high glass transition temperature
RE: Cheap polymer with high glass transition temperature
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Cheap polymer with high glass transition temperature
I should have added that these are injection molded parts. Cheap thermoplastics preferred.
Thanks
RE: Cheap polymer with high glass transition temperature
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Cheap polymer with high glass transition temperature
I've been using Lexan 940 polycarbonate with good results for electrical enclosures...
UL RTI of 120-130deg C (<-- this is what UL will use during thermal testing to determine suitability.. don't exceed that and good to go)
Vicat softening 140+ deg C
V-0 flammability down to 1mm thickness
RE: Cheap polymer with high glass transition temperature
Chris DeArmitt PhD FRSC
President
Plastic materials consultant to the Fortune 100
www.phantomplastics.com