I bought this stuff from McMaster Carr to use on my project to prevent metal to metal contact (now I just hope it works since I really dislike the standard webbing):

p/n 76445A763 (page 3354)
Strong & Slippery UHMW Polyethylene Tape 1" Width X 5 Yards Length, .0115" Total Thickness

Provides a nonstick, low-friction surface similar to PTFE (polytetrafluoroethylene) tape but with higher abrasion and impact resistance. Ideal for chutes, packaging lines, slides, and anywhere high-pressure sliding contact occurs. Also eliminates squeaks and rattles caused by adjacent parts movement. Tape has a UHMW (ultra-high molecular weight) polyethylene film and 0.0015" of acrylic adhesive. Color is translucent. 0.0045" thick, 0.0065" thick, and 0.0115" thick tape has a temperature range of -40° to +225° F and includes a peel-off polyethylene liner. Temperature range for 0.0215" thick, 0.0325" thick, and 0.0615" thick tape is 0° to 120° F.
Tape— 0.0045" thick tape has a 0.003" thick film. 0.0065" thick tape has a 0.005" thick film. 0.0115" thick tape has a 0.010" thick film. 0.0215" thick tape has a 0.02" thick film. 0.0325" thick tape has a 0.03" thick film. 0.0615" thick tape has a 0.06" thick film."