Product Information High Performance Lubricants …

1 Product InformationHigh PerformanceLubricantsFEATURES Lubricates over a widetemperature range of -290 to840 F (-178 to 450 C) Has an exceptionally lowcoefficient of friction Air dries in 20 to 30 minutes;completely cures in 4 hours Reduces wear normally associatedwith running-in new or rebuiltequipment Remains stable in many extremeenvironments such as vacuumand radiation due to its dry form Lubricates effectively even afterlong periods of non-use and willnot wash out or attract and holddust or dirt Adheres to most clean metalsurfaces Resists chemicals and fuelsCOMPOSITION Solvent dispersion of MoS2,graphite and inorganic binder Supplied as pourable liquid andaerosol.

2 Cures to dry lubricatingfilmMolykote 321 Dry FilmLubricant and Molykote 321 Dry Film Lubricant SprayDry film lubricant for components used intermittently or thoseexposed to unusual environmentsUSESM olykote 321 Dry Film Lubricant is designed for use on parts that areinaccessible for lubrication after assembly; require a dry, thin lubricating film;or normally experience high initial wear on running-in new or rebuilt equip-ment. It has also been successfully used in a variety of metal-working applica-tions. Molykote 321 Dry Film Lubricant can be used on: Cutting tools broaches, gear cutters, milling cutters, taps, drills, reamers,chasers, punches, etc.

3 Railroad pins brake pins and levers, roll stabilizer pins, trip pivots,eccentric bolts Splines, threaded connections, disconnects Aircraft engines for air foil lubrication Instruments operating in unusual environments, such as in a vacuum,near radiation or in extreme low or high temperatures Metal forming Aluminum to aluminum and aluminum to steel surfacesTYPICAL PROPERTIEST hese values are not intended for use in preparing SuppliedSpecific Gravity at 77 F (25 C) at 77 F (25 C), Zahn #1sec32 Coverage ( thick)sq ft/gal780 Flash Point, closed cup F ( C)102 (39)As CuredColorGray-blackBinder TypeInorganicCTM 04091 Endurance Life2, 1000 lbminutes71 CTM 0389 Load-Carrying Capacity3N11,250 CTM 0394 Coefficient of , on metals and glassGoodFluid ResistanceEthanol, methyl isobutyl ketone,acetone, silicone fluid, water,methanol, acetone, benzene,naphtha, hydrazine ( Product is,however, attacked by N2O4)1 Corporate Test Methods (CTMs) correspond to standard ASTM tests in most instances.

4 Copies of CTMs areavailable upon test method 791a-3807, falex pin and vee test method 791-3812, falex pin and vee press fit Writers: Please obtain a copy of the Dow Corning Sales Specification for thisproduct and use it as a basis for your specifications. It may be obtained from any Dow CorningSales Office, or from Dow Corning Customer Service in Midland, MI. Call (989) I: Recommended Pretreatments For Metal SurfacesPlatedMetalsAlCuMgTiPretreatment SteelCr or Ni Cd or NiAlloysAlloysAlloysAlloysDegreaseXXXXXX XR emoves OxidesBright DipXSandblastXXXA nodizeXDichromateXPhosphateXXDESCRIPTION M olykote 321 Dry Film Lubricantis a selected blend of solid lubricantsof controlled particle size dispersedwith an inorganic binder in a solventsystem.

5 Molykote 321 Dry FilmLubricant Spray is an aerosolpackage using bulk material solventand propellant. After the solventevaporates, the coating cures atroom temperature to form a LIMITATIONSM olykote 321 Dry Film Lubricantmay affect certain plastics, rubbersand paints. Test thoroughly Product is neither tested norrepresented as suitable for medicalor pharmaceutical TO USES urface PreparationParts to be coated should be cleanand dust-free. Molykote 321 DryFilm Lubricant may be applieddirectly to ground or to highlymachined surfaces. The bestperformance has been found onmetal surfaces that have beenabrasive-blasted so that the surfacehas a random orientation of 20 to 30rms finish.

6 Certain surfacepretreatments can further enhancethe Performance and endurancelife of the coating (see Table I).Application MethodsMolykote 321 Dry Film Lubricantmay be applied by spraying, dippingor brushing. Spraying usuallyproduces the most uniform andprecisely controlled film is also good if a highdegree of uniformity is not solids tend to settle rapidly,keep material agitated continuouslyand keep container covered to pre-vent resin hydrolysis and 321 Dry Film Lubricantrequires no dilution before useunless solvent has been lost byevaporation. If so, add naphthasolvent to restore the originalviscosity. Some addition of solventmay also be desirable for dipping spraying, use a commercialspray gun of 1-quart capacity or spray booth is desirable.

7 Makesure the working area is adequatelyventilated and observe the usualprecautions for spray painting. Keepthe Product well mixed both in thereservoir and when circulating toand from the spray nozzle. Check tosee that all elastomers in the spraysystem can be used with a obtain the best adhesion and wearlife, apply a coating no more thick. A single wet pass ofspray usually deposits a film of to thick. Whereuniformity is especially important,place parts on a screen duringspraying to minimize excessivecoating buildup due to flashback. Fitting parts on a jig and rotatingwhile spraying also dipping, required equipmentincludes a pan or bath and an easilyremovable rack or basket.

8 Place partsin the basket and dip briefly. Amotor-driven agitator is useful tokeep solids in is recommended onlywhen spraying or dipping isimpractical or where uniformity isnot required. Use any ordinary 321 Dry Film LubricantSpray in aerosol cans may be usedfor small volume production runs orfor final 321 Dry Film Lubricantis dry to the touch within 30 minutesafter application. However, formaximum Performance , the coatingmust be cured by hydrolysis fromcontact with atmospheric a normal room environment of 50percent relative humidity, the filmwill cure in approximately of Cured FilmEthyl acetate, toluene or xylene canbe used to scrub off Molykote 321 Dry Film Lubricant after AND SHELF LIFEWhen stored under normal ware-house conditions below 90 F(32 C), Molykote 321 Dry FilmLubricant has a useable life of 24months from date of 321 Dry Film LubricantSpray has a useable life of 60 monthsfrom date of manufacture.

9 SHIPPING LIMITATIONS Molykote 321 Dry Film Lubricantis a combustible liquid. Molykote321 Dry Film Lubricant Spray is anextremely flammable 321 Dry Film Lubricantis available in 1-gal and 5-gal 321 Dry Film LubricantSpray is available in 16-oz aerosol canscontaining 11 oz (312 g), net HANDLINGINFORMATIONPRODUCT SAFETY INFORMATIONREQUIRED FOR SAFE USE IS NOTINCLUDED. BEFORE HANDLING,READ Product AND MATERIALSAFETY DATA SHEETS AND CON-TAINER LABELS FOR SAFE USE,PHYSICAL AND HEALTH HAZARDINFORMATION. THE MATERIALSAFETY DATA SHEET IS AVAILABLEFROM YOUR DOW CORNING REP-RESENTATIVE, OR DISTRIBUTOR,OR BY WRITING TO DOW CORNINGCUSTOMER SERVICES, OR BYCALLING (989) Information PLEASE READ CAREFULLYThe Information contained hereinis offered in good faith and isbelieved to be accurate.

10 However,because conditions and methods ofuse of our products are beyond ourcontrol, this Information should notbe used in substitution for customer stests to ensure that Dow Corning sproducts are safe, effective, and fullysatisfactory for the intended end Corning s sole warranty isthat the Product will meet theDow Corning sales specifications ineffect at the time of shipment. Yourexclusive remedy for breach of suchwarranty is limited to refund of pur-chase price or replacement of anyproduct shown to be other than aswarranted. Dow Corning specificallydisclaims any other express orimplied warranty of fitness for aparticular purpose or merchantabil-ity.