Thread Sealant LaSalle Bristol 7525790 Number 5 ®, Use To Seal/ Lubricate/ Protect Pipe Thread, Compatible With Threaded Galvanized Steel/ Iron/ Brass/ Copper/ Aluminum/ Stainless Steel/ Polyethylene/ Fiberglass Reinforced/ PVC PipeThread Sealant; Number 5 ; Use To Seal Lubricate Protect Pipe Thread; Compatible With Threaded Galvanized Steel Iron Brass Copper Aluminum Stainless Steel Polyethylene Fiberglass Reinforced PVC Pipe; 1. 75 Ounce Tube Parts may be repositioned up to four Hours after application. Use on head bolts, sending units and sensors, oil and coolant lines, fuel fittings, rear axle fill plug, brake and power steering fittings. Unit Size: 1. 75 Ounce Unit Type: