WD-40 Specialist Dry Lubricant with PTFE is an anti-friction lubricant that excels in dry and dusty environments, with no oily residue. WD-40 Specialist Dry PTFE is quick-drying, and sets as a clear film that wont attract damaging elements such as dust, dirt or oil. It’s great for reducing friction and wear on tools and equipment, and is extremely effective as a mould making release agent, with the PTFE preventing other materials bonding to the surface.