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GENERAL PURPOSE HEAVY DUTY ADVANCED ENGINEERING EXTREME TEMPERATURE SPECIALITY
INSULTHERM SPBI   
 
For years, Techflex’s Insultherm braided fiberglass sleeving has been the first choice among automotive professionals and enthusiasts alike for many of their thermal protection applications.
Now, we’re introducing the same high temperature protection in an easy slip on sleeve that will extend the life of expensive spark plug wires by protecting them where they need it most... at the boot. Just slip these 3/4” diameter double thickness (triple thick at the sewn end) sleeves over any spark plug cable and boot (even right angle boots) to protect them from engine temperatures in excess of 1,200°F. Once installed, the sleeves require no clearance from hot surfaces, and can even rest directly on hot exhaust headers without any effect.
Insultherm Spark Plug Boot Sleeves (FG) are completely non-conductive, resist all engine chemicals, will not support combustion, and provide an easy, economical solution to the challenge of wire protection in the cramped, high temperature environment of any high performance engine compartment.
 
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Lenth Part # Diameter Wall Thickness Bulk Minimum Available Colors
6" FBN0.75 3/4" 0.085 Special Order 7 1/2" Natural is an in stock item. All other combinations are special order. Please contact your Account Rep for details
7 1/2" FCN0.75 3/4" 0.085 72 ea.
12" FDN0.75 3/4" 0.085 Special Order
HIGH TEMPERATURE
insultherm
spbi
•  Double Wall Fiberglass Sleeves Protect Spark Plug Wires  and Boots Up To 1,200º F.
•  Resists Cuts and Abrasion
•  Economical & Long Lasting
•  Easy Slip-On Installation
•  Resists Gasoline & Engine Chemicals
•  Halogen & Asbestos Free
•  Available in 4 Colors
fireflex
nomex
thermaflat
thermatube
thermawrap
header wrap
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