LOCTITE® DRI 2250-W is a solvent-free, water-based medium to high strength pre-applied threadlocker specially designed to meet automotive specification requirements to prevent loosening of threaded fasteners. It is suitable for use on plain and passivated metal surfaces and is designed to work on stainless steel and zinc-flake plated fasteners. This product has hot strength and heat aging capabilities up to 400°F- along with excellent solvent resistance properties.