DiFruscia Industries applies bonded dry-film lubricants to MIL-PRF-46010 (heat cured) and MIL-PRF-46147 (air cured), under DFI’s AS9100D quality system. Dry-film lubricant is not a Nadcap special process.

What a dry-film lubricant does

Dry-film lubricants are bonded coatings that carry solid lubricants, such as molybdenum disulfide or graphite, in a resin binder. Once cured, they cut friction and prevent galling and seizing without oil or grease. They stay clean, don’t attract dirt, and keep working where liquid lubricants would migrate, dry out or wash away. See Find a Finish by Need for other lubricity and wear options.

The specifications

Callout	Cure	Typical use
MIL-PRF-46010	Heat cured	The most durability and wear life, where parts can take an oven cure
MIL-PRF-46147	Air cured	Parts that can’t be baked, or that include heat-sensitive materials

Dry film or oil and grease?

	Dry-film lubricant	Oil or grease
Dirt and dust	Doesn’t attract or hold contaminants	Attracts dirt and grit
Durability	Bonded to the part; stays in place	Migrates, dries out or washes off
Maintenance	No re-lubrication in many applications	Needs periodic re-application
Cleanliness	Dry to the touch	Wet; can transfer to other surfaces

What to expect

Substrates: steel, aluminum, titanium and other metals.
Appearance: typically dark gray to black.
Low friction and anti-galling, with a clean, dry surface and added corrosion resistance.

How to call it out on the drawing

Choose heat or air cure by what the part can tolerate and the wear life you need.
Pretreatment improves life. Phosphate, anodize or a blasted surface gives the film a better anchor.
Allow for film thickness on threads and close-fit surfaces.
Mark the areas to mask where you don’t want the coating.

How the job runs

Pretreat: clean, blast or conversion coat.
Apply: spray to a controlled thickness.
Cure: heat cure or air cure.
Inspect: thickness and appearance.

Where it’s used

Fasteners and threads, firearm actions, aerospace hardware and sliding mechanisms.

Get a quote or a data sheet

Send the drawing and the spec callout to rfq@difruscia.com, or use Request a Quote. DFI’s technical data sheet for this process is available on request from Technical Specifications. Questions: 401.943.9900 or support@difruscia.com.

Values shown are typical results for reference only and are not specification limits. Results vary with alloy, part geometry, thickness and process parameters. Contact DFI to confirm the requirements for your application.

MIL-PRF-46010 and MIL-PRF-46147 Dry-Film Lubricants