Kaxite phenolic insulating sleeves are the bolt-hole dielectric component for flange insulation kits, manufactured from laminated phenolic and supplied in all standard metric and imperial bolt sizes. They slide over the flange bolt shank to break the electrical path between the bolt and the two flange plates, preventing galvanic corrosion between dissimilar metals and isolating the joint on cathodically protected lines. Phenolic offers low-cost general electrical insulation, is unaffected by most organic solvents, and is well suited to moderate-duty joints in neutral or acidic environments. It is not recommended for alkaline service or heavy bolt torque where cracking risk is high — Mylar sleeve is the recommended alternative in those conditions. Sleeves are supplied in full lengths or cut to customer bolt length, as individual components or as part of a complete flange insulation kit with matched gaskets and washers. Standard sizes ship in 5–10 days, custom sizes in 10–20 days. OEM / wholesale pricing applies from first order for standard sizes and from 500 pieces per size for custom cut.
Kaxite Mylar insulating sleeves are bolt-hole dielectric components for flange insulation kits. Formed from biaxially oriented polyester (PET) film — the industry-standard "Mylar" material recognised across the pipeline industry — they slide over the flange bolt to break the electrical path between the bolt shank and the two flange plates. Mylar offers high dielectric strength, very low water absorption, and superior resistance to cracking under torque compared with phenolic. Sleeves are supplied in standard metric and imperial bolt diameters, in full 900 mm / 3 ft lengths or cut to your specified bolt length. Used together with G-10, G-11 or phenolic insulating washers to complete the joint isolation. Standard sizes ship in 5–10 days, custom sizes in 10–20 days. OEM / wholesale pricing applies from first order for standard sizes and from 500 pieces per size for custom cut.
