C-STOCK: LOWK

Low Dielectric Constant, Low Loss Sheet Stock

PPG C-STOCK® Low K is a series of sheet stock materials with a low dielectric constant and low loss. These materials have densities well below conventional dielectrics.

C-STOCK Low K is a rigid, low density, very fine-textured syntactic foam with excellent physical properties, and can be easily machined.

Available in two grades, Low K-39 and Low K-34.

PPG C-STOCK Low K is available in standard sheet size 12 in. x 12 in. (305 x 305 mm), in thicknesses of 1/8, 1/4, 3/8, 1/2, 1, 2, 3 and 4 inches thick. Unless tolerances are specified, the sheets are normally supplied “as cast”, with skins approx. 0.125 to 0.200 inches over the nominal thickness.

PPG C-STOCK Low K can be supplied in other sizes, thickness or per customer specified configurations.

Also available in 12” (305 mm) rods and bars in standard diameters/thickness of 1/8, 1/4, 3/8, 1/2, 1, 2 and 3 inches as well as in other custom diameters and thickness.


Discover the Future of Flight

Have questions or need support for your aerospace project? Contact PPG’s aerospace team today for guidance and tailored solutions.

Accordion collapsed
Service temperature
  • 300°F
Shelf life
  • 5 yrs. Minimum