Apollo PEXâ„¢ tubing is cross-linked, high density polyethylene. The silane method, also called the "moisture cure" method, results in PEX-B, where the cross-linking is performed in a secondary post-extrusion process, producing cross-links between a cross-linking agent. The process is accelerated with heat and moisture. The cross-linked bonds are formed through silanol condensation between two grafted vinyltrimethoxysilane (VTMS) units, connecting the polyethylene chains with C-C-Si-O-SiC-C bridges. PEX tubing is for use in hot and cold potable water distribution systems. PEX tubing can also be used in "continuously recirculating" plumbing systems up to 140 deg F while maintaining chlorine resistance. The tubing may be installed in concrete, gypsum based lightweight concrete, sand, asphalt, in or under wood flooring or behind wallboard or plaster.
CRESLINE 18335 High-Density Pipe, 1 in, 100 psi, Black
CRESLINE 18355 Pipe Tubing, 1-1/4 in, Plastic, Black, 100 ft L
Plumb Pak PP855-21 Pipe Tubing, 1/4 in, Plastic, 25 ft L
CRESLINE 18145 Pipe Tubing, 2 in, Plastic, Black, 100 ft L