Lamitex® G30 is known for excellent thermal resistance, good chemical resistance, and superior mechanical properties. For instance, our G30 was tested to have flexural strengths of up to 67,267 psi. These properties are maintained during continuous use to temperatures from cryogenic to 450 °F (232 °C) and intermittently, as high as 900 °F (482 °C). Material specs for the downhole drilling industry refer to this as "MSTOT" or “Maximum Short Term Operating Temperature.” Polyimides are also inherently resistant to flame combustion and do not usually need to be mixed with flame-retardants, which at times can affect the mechanical properties of a thermoset laminate. Polyimide laminates have a flexural strength half-life at 480 °F (249 °C) of 400 hours.
We are Proud to announce that Garrett Fong (15), with the help of his father, Bob Fong (Senior R&D Project Mgr. –ABB Installation Products) was able to utilize our Lamitex FR4 tubing as a compound bow stabilizer on his bow that he used to place in the Pennsylvania State Archery Tournament. An avid archer, Garret is a member of the Junior Olympic Archery Development (JOAD) Program and was recently invited to participate in the Pennsylvania State Archery Tournament. We wish him the best of luck in his future endeavors and many thanks for using our Lamitex product.
Only 2 of the 4 cotton phenolic grades identified by the Mil-I-24768 and NEMA catalogue of materials have specifications for convolute wound (rolled ) tubes and they only have a limited number of performance properties (axial compression, density & moisture limitations and for LE dielectric strength).