DuPont Molykote 3402-C LF Lead-Free Anti-Friction Coating – 500g for Compliant Lubrication

DuPont Molykote 3402-C LF is the lead-free (LF) formulation of the Molykote 3402-C anti-friction coating series — providing the same bonded solid film lubricant performance as the standard 3402-C but with the elimination of lead from the coating formulation for RoHS (Restriction of Hazardous Substances) compliance and environmental regulatory requirements. The LF designation specifically identifies this product as the lead-free alternative for applications where lead content restrictions apply — whether through RoHS regulation, military REACH requirements, or customer environmental specifications requiring lead-free materials.

As aerospace manufacturers and defense contractors increasingly adopt environmental regulations restricting heavy metals in production processes and materials, lead-free alternatives like Molykote 3402-C LF enable facilities to maintain the proven Molykote anti-friction coating performance on critical aerospace mechanisms while meeting their environmental compliance obligations. The 3402-C LF provides equivalent lubrication performance to the standard 3402-C, with the same application method, cure procedure, and service temperature range.

The 500g can provides the same practical maintenance quantity as the 3400A product, suited for component coating operations, maintenance shop anti-friction treatment, and aerospace mechanism lubrication programs.

Technical Information

Molykote 3402-C LF uses MoS2 or PTFE-based lubricant particles in an organic binder system, with the lead-containing binder components replaced by lead-free alternatives that maintain the coating’s bonding strength, temperature resistance, and lubricant particle retention. The lead-free binder system is formulated to match the application, cure, and performance properties of the standard 3402-C to enable drop-in replacement in existing aerospace lubrication specifications and manufacturing procedures.

The performance of lead-free solid film coatings has historically been a concern — some earlier lead-free formulations provided inferior bonding strength or temperature resistance compared to lead-containing alternatives. Molykote 3402-C LF represents a mature lead-free formulation that has been developed to close this performance gap while meeting environmental compliance requirements, validated by DuPont’s extensive product development and testing process for aerospace lubricant coatings.

Cure procedure for 3402-C LF follows the standard Molykote solid film lubricant coating cure schedule — oven cure at the specified temperature for the required time per the product data sheet. Lead-free binders may have specific cure temperature and time requirements that differ from the standard 3402-C — verify the 3402-C LF specific cure procedure before processing coated components.

Why Choose Molykote 3402-C LF?

• ✅ Lead-Free RoHS Compliant — Meets environmental heavy metal restrictions
• ✅ Same Lubrication Performance — Equivalent to standard 3402-C dry film
• ✅ Aerospace Qualified — Molykote’s trusted solid film lubricant brand
• ✅ Drop-In Compliant Alternative — Replaces 3402-C in environmentally restricted programs
• ✅ 500g Maintenance Size — Right quantity for component coating operations

Applications

Molykote 3402-C LF is used for anti-friction coating of aerospace fasteners, actuator mechanisms, bearing surfaces, and moving contact parts in programs requiring lead-free materials for RoHS compliance or environmental specification requirements.

Frequently Asked Questions

Q: What is Molykote 3402-C LF?
A: 3402-C LF is the lead-free (LF) version of Molykote solid film anti-friction coating — providing equivalent dry lubrication performance without lead for RoHS and environmental compliance in aerospace applications.

Q: MPN for Molykote 3402-C LF 500g?
A: MPN is 4092585.

Q: Why is a lead-free version needed?
A: RoHS regulations and some aerospace/defense environmental specifications restrict lead content in coatings and materials. 3402-C LF enables facilities to maintain Molykote anti-friction coating performance while meeting these restrictions.

Q: Is 3402-C LF a drop-in replacement for 3402-C?
A: 3402-C LF is designed as the lead-free alternative with equivalent performance. Verify the specific application specification and qualification status before substituting in a qualified aerospace coating program.

Q: What is the cure procedure for 3402-C LF?
A: Oven cure per the Molykote 3402-C LF product data sheet. Lead-free binders may have specific cure requirements — verify the LF-specific cure procedure before processing components.