Rugged water-based thread sealant designed to withstand the temperatures and pressures of even the harshest engine environments.
3M™ Thread Sealant 4291 is a water-based product designed to be pre-applied to threaded fasteners. It has excellent resistance to automotive fluids and can withstand high temperatures and pressures. Typical applications are threaded fasteners for the engine compartment.
3M™ Thread Sealant 4291
- Environmental resistance to heat and automotive fluids
- Can be used on both pipe and straight heads
- Extended shelf-life (12 months on coated fasteners)
- Water based sealants with no VOCs