The document discusses Molykote 321R, an air drying anti-friction coating spray used for bolt lubrication. It provides advantages such as low friction, corrosion protection, and ensuring bolts can still be loosened after long term use. The coating is suitable for lubricating nuts, bolts, valve stems, machine parts and more where lubrication is needed but grease or oil could cause contamination.

1. MOLYKOTE 321R
AIR DRYING ANTI-FRICTION
COATING SPRAY
VIZAG STEEL CATALOG NO. 2790600110718
Bolt lubrication with Anti-friction Coating
MOLYKOTE®
For high-tensile bolted connections, the most important criterion for effectiveness is the preload. Using
torque controlled tightening, friction in the thread and under the bearing face directly influences the
attained preload. Bolt lubrication aims to reduce and stabilize friction and minimize the scatter between
fastened joints. Additionally, it will improve the ability to loosen the bolts even after long term operation.
Advantages of Molykote 321R AF Coating Spray on Nuts and
Bolts
 Low coefficient of friction
 Low variation of friction
 Protection from cold welding (galling) of austenitic stainless
fasteners during assembly
 Protection from seizure of hot dip galvanized bolted connections
 Corrosion protection
 Easy loosening
 High load carrying capacity
 Prevents seizure in higher temperatures
 Assured loosening even after years of operation
 Dry fasteners, clean handling
Other Steel Mill Application Areas:
1. Valve stems for easy twisting of valves – no contamination
2. Lathe Machine Beds and Lead Screws in Area Repair Workshops
3. Gears and other close fitting components after machining to avoid running-in wear
4. Wire ropes and chains in dusty environments where grease or oil lubrication can attract
contaminants
5. Wear plates and liners in rolling mills to prevent premature wear
6. Cutting tools like broaches, reamers, drills and gear cutters, etc
7. Dry lubrication of all sliding surfaces, oscillating surfaces or areas inaccessible for lubrication
8. Lubrication of circuit breaker components
For assistance in product application, please call Anil Tiwari +91-9886-46-7276
After application, please turn the can upside down and spray for the solvent to clean the nozzle and prevent nozzle blockage
Marketed in this region by Project Sales Corp, Authorised Distributors for Dow Corning India P Limited
Call Anil +91-9866-46-7276; Office +91-891-2564393 sales@projectsalescorp.com