A fast-acting penetrant with capillary action to penetrate deep into crevices, threads and seams to break the rust bonds that hold stuck parts together. WD-40 Specialist Penetrant Fast-acting low odor formula works on contact to free rusted nuts, bolts, threads, locks, and chains leaving behind a protective layer that prevents rust and corrosion from re-forming. It is 50-state VOC compliant and safe to use on metal, rubber and plastic parts. Now the job is even easier with our proprietary 8” flexible straw that bends and keeps its shape, allowing unlimited access to hard-to-reach places. - Penetrates up to 2x faster than the competition* - Prevents rust 10x longer than the competition**A8 - Penetrates rust to free up stuck, frozen, or seized equipment and parts - Safe to use on metal, rubber and A7plastic parts - Ideal for use on nuts, bolts, threads and locks - 50-state VOC compliant *Test Lab: Fred Cuneo (3rd Party); Nail Climb Test; Test date: 03/2021. **Test Lab: WD-40 Co. Technical Center (Pine Brook, NJ); ASTM B117; Test date: 02/2021.