PEEKSil is fused silica tubing sheathed in PEEK polymer with an effective outside diameter of 360um, 1/32" or 1/16". The PEEK sheathing is mechanically stron and has ideal characteristics for sealing with metal or polymer fittings. The fused silica core provides a consistent and rigid fluid pathway with a very tight tolerance, and industry accepted chemical properties.PEEKSil can be used as a direct replacement for conventional stainless steel or PEEK tubing. Like tradional fused silica tubing, PEEKSil has excellent chemical compatibilty and extremely low adsorption characteristics., PEEKSil tubing is capable fo withstanding up to 10,000 psi. PEEKSIL is sold in precut lengths only, see listing.