Guideline for Applying Moly Resin
- Color Selection
- Metal Preparation, Air Blasting and Media
- Agitation (shaking the bottle) and Airbrush
- Oven Types, Hanging Parts and Pre-Heating
- Application of the Coating
- Heat/Curing the Coating, Special Curing Instructions and Temperature Accuracy
- Testing for Adhesion and Curing
- Cleanup and Thinning
- Other Information
Spray Booth, Masks, and Gloves As with all spray coatings, the use of a standard paint mask is recommended as paint fumes should not be inhaled on a repeated basis. Spraying outside behind your shop or home is convenient and generally requires no paint mask. If you are frequently refinishing and have a corner of your garage or other location then you may want to build a small spray booth. A spray booth can easily be made out a few 2×4 studs and clear plastic sheeting and can be built in a corner of a garage. As a door use a screen door and cover with a clear sheet of plastic. A simple and inexpensive squirrel cage fan can be used to vent fumes to the outside through a hose. A standard paint spraying respirator mask should be worn as with all types of spraying to keep from breathing in solids and fumes when spraying. Use a standard type mask with filter that you will find at Home Depot, WalMart, etc. If spraying outside in the open air, the need for the mask is reduced. Gloves are important also to keep from getting the coating on you as with all types of painting but most important is that you do not want to be touching parts before curing with your fingers and getting oil, marks, etc. on the parts. The best gloves are thin disposable Nitrile gloves you can find at any paint store. Latex and PVC Poly type thin gloves fall apart and dissolve when using MEK or Acetone.
Coating Plastics Moly Resin can be used to coat some polymers and plastics. The limitations on coating plastics is related to whether your polymer stock, pistols grip, forearm, etc. can safely be heated to 300 f. and held at that temperature for an hour. Some polymers are safe and others are not. There is always the risk of warping, melting or cracking an unsuitable polymer.
Rusted and Pitted Parts Moly Resin is used often for firearms restorations where rusting and pitting has unfortunately already occurred. The goal is to blast the entire firearms and concentrate on the rusted and pitted areas so the rust is clean out of the pits. The firearm can be coated as usual at that point. By using flat colors like flat black you can reduce the notice of the pitted areas. You can also fill the pit in with silver solder, bronze, etc. and sand it down flush and then apply Moly Resin. How well you hide the pitting will be based on the quality of the metal preparation you performed.
Touch Ups Moly Resin may be applied over an existing cured Moly Resin finish for a touch up. Cured parts with an unfortunate “slipped screw driver scratch”, for example or other marks can be touched up with the airbrush and the part re-cured. Take the damaged part, wipe it clean of solvents and adjust the airbrush nozzle to spray a tiny small mist of coating and then lightly touch up the scratch to blend it out. Then re-cure the part at 300 degrees.
Firearm Disassembly Moly Resin may be used for cosmetic refinishing and/or as a protective coating against the elements. When used as cosmetic finish, it can be unnecessary to disassemble the firearm down to each individual piece. In many instances a large sub-assembly of parts may be coated without breaking it down into small pieces. You may sand blast, preheat, spray, and cure as one large piece since the airbrush will allow you to apply a coating to recesses and cavities and avoid more difficult disassembly.
Specifications Appearance – When applied correctly, the bonded coating will appear uniform in color, smooth with a l slight texture like Parkerizing, and free from cracks, runs, sags, scratches, pin holes, fish eyes, bubbles and foreign matter. Always test spray a scrap piece of metal to test application skill and technique.
Thickness – The optimal thickness of the coating should be less than .001” thick unless a thicker coating is desired. Keeping the coating thin allow parts to be easily reassembled.
Hardness – ASTM-D-3363 test results for scratch (mar) and gouge hardness rates phenolic resin at a hardness that exceeds 9H. 9H is the hardest rating for a coating under test method BS3900-E19:15015184.
Lubricity – The darker colors of Moly Resin contains molybdenum disulfide which provides excellent anti-friction characteristics. Wear life was tested on Tabor Abrasurf with #CS10 wheel installed @500 grams weight minimum 235 RPMs.
Thermal Stability- The darker pigmented cured coating will withstand 500f continuously and 1000f intermittently. Lighter pigmented colors will withstand 500f continuously and 750f intermittently.
Fluid Resistance- Moly Resin thermal cure products will meet 24 hour emersion requirements in the following fluids: aviation gasoline, hydraulic fluid, jet fuel, trichloroethylene, nitric, sulfuric and hydrochloric acids, hydrogen peroxide, gun powder solvents, strong bases such as ammonium and sodium hydroxide and numerous other strong chemicals.
Corrosion Resistance- Moly Resin when applied correctly to sandblasted cold rolled steel will pass test procedures for salt water spray at 1000 hours, salt water immersion at a minimum of 1000 hours, accelerated salt spray test equivalent to 30 years marine atmosphere exposure , and 60 days sea water immersion.
Material Safety Data Sheet SECTION I Identity (as used on label): MOLY RESIN
Chemical Names: Solid Film Lubricant Coating (thermal cure)
Chemical Family: Specialty Phenolic Resin
Formula: Complex Mixture
Blended and Bottled by: John Norrell Inc. 13529 Saddle Hill Dr., Little Rock, AR 72212
Hazardous Materials ID System (HMIS)
Special Note: none
SECTION II – Hazardous Components and Toxicity
Concentrations Phenol (Cas # 108-95-2)
Trade Secret ACGIH TLV: 5 ppm (skin)
OSHA PEL: 5 ppm (skin) Ethanol (CAS #64-17-5) < 30 %
ACGIH TLV: 1000 ppm OSHA PEL: 1000 ppm
Molybdenum Disulfide (CAS #1317-33-5)
Trade Secret ACGIH TLV: 10 mg/m3 as MO OSHA PEL: 10 mg/m3 as MO Methyl Ethyl Ketone (Cas # 78-93-3)
>50 % ACGIH TLV: 200 ppm
OSHA PEL: 200 ppm
OSHA STEL: 885 mg/m3 Eye and skin irritant and may cause CNS in humans
P.M. Acetate (Cas # 108-65-6)
Trade Secret ACGIH TLV: No Listing
OSHA PEL: No Listing Methyl Isobutyl Ketone (Cas 3 108-10-1) <10% ACGIH TLV: 50 ppm
OSHA PEL: 50 ppm Residual Formaldehyde (Cas # 50-00-0)
Trace ACGIH TLV: 1ppm
OSHA PEL: 3 ppm
Irritating to skin, eyes, and mucous membranes. Carcinogenicity: Animals-yes, humans-indefinite
Freon TF (Cas # 76-13-1) <10%
ACGIH TLV: 1000 ppm
OSHA PEL: 1000 ppm Cellosolve Acetate (Cas # 111-15-9)
Trade Secret ACGIH TLV: 5 ppm (skin)
OSHA PEL: 100 ppm (skin) Stainless Steel (Powder)* (Cas # 7429-90-5) <10% ACGIH LTV: No Listing
OSHA PEL: No Listing * used only in the Stainless Steel Moly Resin
Inorganic Barium Compound <10%
ACGIH LTV: 0.5 mg/m3 OSHA PEL: 0.5 mg/m3
Mild skin and eye irritant. Carcinogenicity: animals and humans- no Toluene (Cas #108-88-3) <10%
AGCIH TLV: 100 ppm OSHA PEL: 100 ppm
Isopropyl Alcohol (Cas # 67-63-0)
Trade Secret AGCIH TLV: 400 ppm OSHA PEL: 400 ppm Xylene (Cas #1330-20-7) <10%
ACGIH TLV: 100 ppm OSHA PEL: 100 ppm
SECTION III – Chemical & Physical Characteristics
Boiling range 165 f. to 180 f.
Vapor Pressure NA
Melting Point NA
Vapor Density (air =1) >1
Evaporating rate NA
Solubility in H2O Moderate
Appearance / Odor Gray-black liquid, organic solvent odor Silver colored liquid, organic solvent odor Volatile Organic Compound 672
SECTION IV – Fire and Explosive Hazard Data
Flash Point: 50 f.
Flammable Limits: LEL 4.3, UEL 19.0
Extinguishing Media: CO2, Foam, Dry Chemical, or Halon
Special Fire Fighting Procedures: None
Unusual Fire and Explosive Hazards:None
SECTION V – Reactivity Data
Conditions to Avoid: Open flame
Decomposition: Irritating and toxic fumes
Hydrogen Sulphide and Sulfur Dioxide
SECTION VI – Precautions for Safe Handling and Use
Steps to be taken in case material is released or spilled:
Clean spill with absorbent material, Eliminate ignition sources, wear gloves, goggles, and gas mask if ppm are exceeded,.
Waste disposal method -Dispose of waste in chemical land fill as approved by local, state and federal laws and regulations.
Precautions to be taken in handling and storing: Ventilate area away from acids, alkalis, and open flames
Other Precautions: None
SECTION VIII – Control Measures
Respiratory Protection: Use NIOSH approved organic respirator if ppm limits are exceeded.
Local Exhaust – used to maintain levels below toxic ppm.
Mechanical – use non-sparking or open flame equipment.
Protective Gloves: Chemical resistant gloves
Eye Protection: Wear safety glasses or goggles
Other Protective Equipment or Practices: None
INFORMATION ON THIS FORM IS FURNISHED SOLELY FOR THE PURPOSE OF COMPLIANCE WITH OSHA’S HAZARD COMMUNICATION STANDARD, 29CFR 1910.1200 AND SHALL NOT BE USED FOR ANY OTHER PURPOSES.