ok this ultem is a really incredible material. it's like a super plastic composite resin. it's used in aircraft, automotive and medical fields. here is an excerpt from an article from GE engineering, the makers of this product:
ULTEM® resin in the automotive industry provides manufacturers with a high performance, cost- effective alternative to metal: strong enough to replace steel in some applications and light enough to replace aluminum in others.
For applications like transmission components, throttle bodies, ignition components, sensors and thermostat housings, ULTEM® resin can offer:
·Heat resistance up to 200°C, RTI of 170°C ·Chemical resistance against most automotive
fuels, fluids and oils
·Excellent dimensional stability (low creep
sensitivity and low, uniform coefficient of ·thermal expansion)
Superior torque strength and torque retention ·Excellent processibility with very tight ·molding tolerances
quoted from here:
http://www.hycompinc.com/PDFs/ULTEMProductBrochure.pdf
it really is an incredibly strong, durable material and it's also very scratch resistant. it's very resistant to cracking and handles extremely high temperatures, its impervious to all kinds of chemicals. it's not that easy to machine, it actually feels like a cross between the hardest of woods and aluminum in machining, it's as strong as aluminum and seems to be even more scratch resistant
here is a full mod made 100% from ultem:
now really I don't know that I'm completely in love with the whole transparency thing. I mean in one way it is kind of cool as a novelty, but on the other hand I also think that it would look more rich and classy if the whole interior of it was blacked out too.
this thing is a lot of work to build and the material itself is not cheap, it's more work than wood because it's as hard or even harder to machine than most hard woods and it also requires sanding and polishing inside and out which is a real pain, especially the whole inside. if the inside is not sanded and polished then you would see all of the machining marks in there as the outside is polished. feel in the hand is kind of cool, it def doesn't feel like cheap plastic, it's got a real quality feel to it and man is it strong. it's not soft at all like delrin or most other plastics, it's very hard but it's not brittle at all, I don't think you can break this thing even if it's really abused. it's kind of hard to really describe how durable this material is, there's not much else like it really.
I've been searching to see if I can find any other mod made completely from ultem but I can't find anything. yeah I'm finding tons of atty caps and tanks and drip tips, but no complete mods. has anyone ever seen any other mod made from this stuff?