The tank repair kit (welding gun and rod) includes a specially formulated welding wire containing co-polymers and adhesives. Wire may be used to effectively repair linear polyethylene. Easy to use and requires only 110 volt power. The poly patch kit is ideal for repairing pinholes, hairline cracks and holes up to ½" in diameter. For best results, surface to be repaired should be above 32˚ F. The kit consists of epoxy, a small brush to apply the epoxy, a small piece of sandpaper to “roughen” the area to be patched, a piece of mastic to temporarily fill the hole/crack and a piece of fiberglass. Please contact us for more information when ordering tanks and supplies.