Instructions for Spartan Shield Gun Coating

INSTRUCTION AND PREPARATION MANUAL

PLEASE THOROUGHLY READ THE INSTRUCTIONS AND WARNINGS BEFORE USING 

Spartan Shield RECOMMENDATIONS FOR PREPARATION OF ‘METAL SUBSTRATES’ FOR PAINTING

 These procedures are recommended to obtain a suitable surface for painting.

The surface to be painted should be;

1. Stir paint thoroughly with mechanical agitation. i.e., 120 aluminum oxide sand blast
2. Use Acetone to soak the substrate for 15 minutes.
3. Use a Dry and free of any type of moisture or condensation Air supply.
4. Use an area that is Free of any dirt, dust or air born contaminants.
5. Your substrate should be Free of any oil, cutting oil, lubricants, drawing compounds, etc.
6. Your substrate should be Free of rust, corrosion.

The conditions listed above can normally be obtained by wiping all surfaces with a lint-free rag dampened with solvent. The rag should be changed often to prevent oil build-up/saturation.

Suitable solvents would be acetone, xylene, or Toluene. * Commercial metal cleaning preparations may be suitable but must be checked for compatibility with the coating.

The use of compressed air for blow-off is recommended as a final step. The air used must be void of any moisture or oil.

Shake the container for 5 minutes to ensure no settling.

1. Paint temperature should be 60°F – 75°F
2. Measure viscosity (18-20 sec. / #2Zaln)
3. Do not add reducer or thinner to paint.

APPLICATION

1. Parts must be clean and dry. (See Metal Prep)
2. The surface temperature of paint should be between 60-75°F
3. All application equipment should be clean.
4. For HVLP application use the following settings:

15-25 PSI-Fluid

30-40 PSI-Air

4. Paint should be applied evenly at the rate of 9-12 mil-WET and .9-1.2 mils-DFT.
5. Paint must air dry for 30 minutes at room temperature before handling.
6. Paint must be cured using heat.

Bake Schedule

1. Place in a cold or warm oven. Close the door and turn the oven on.
2. Bake for 1 hour at 500°F or 2 hours at 350°F.
3. Do not start the timer until the oven has reached a set temperature.
4. Turn oven off once time has elapsed and allow to cool with door slightly open.

CLEAN-UP

1. All paint equipment should be cleaned and flushed thoroughly using strong solvents such as Toluene or ACETONE.
2. Keep paint tightly covered when not in use.

STORAGE

1. Paint must be stored in an area approved for flammable liquids.
2. Storage temperatures should NOT be <45°F
3. Paint should be used within 24 months from manufacturer's date.

Care must be taken to;

1. Not to contaminate the surface with any type of lubricants, or preparations such as WD-40, Lock-Tight, Anti-Seize, caulk, and sealants.
2. Not to contaminate with body oils. Latex or Nitrile gloves should be worn.
3. Not to have any operations in the vicinity, such as grinding or sanding, that would emit particulate of any type.
4. Make sure that the surface temperatures are within the recommended range. If these procedures are followed, they should yield a suitable surface for painting.

 * CAUTION: Rags soaked with oil and solvent must be handled with caution and in accordance with NFPA recommendations.

Trouble Shooting Guide for Air Dry Coatings Dry spray

This condition appears as a dry, powdery, rough, sandpaper-type finish on the substrate. This condition is generally caused by the following:

1. Holding the spray gun too far away from the substrate.
2. Higher than normal temperatures during the coating process.
3. The substrate being too hot.
4. Having the air pressure set to high on the spray gun.
5. Having the paint volume feed set to low on the spray gun. Fisheyes or Pinholes- This condition appears as small holes, craters or pinholes in the surface of the paint that reach the substrate. This condition is generally caused by the following:
6. Dirty or oily substrate.
7. Airborne contaminants that contaminate the substrate.
8. Contaminants added to the paint from dirty or contaminated spray equipment.
9. Incompatible or contaminated reducers or solvents.
10. Contaminated cleaning systems.

Sagging

This condition appears as a heavy wet film that runs or sags on vertical surfaces. This condition is generally caused by the following:

1. Holding the spray gun too close to the substrate.
2. Slow passes with the spray gun.
3. Holding the spray gun stationery during the painting process.
4. Low paint viscosity.
5. Reducing solvents that evaporate too slowly.

Blushing

This condition appears as a white or ashen look to the dried paint film. This condition is generally caused by the following:

1. A weak or incompatible reducing solvent.
2. Painting during high humidity conditions.
3. Moisture contamination of the paint system.

Overspray

This condition appears as a dry powdery finish usually found on surfaces that have already been painted. This condition is generally caused by the following:

1. Paint systems that dry too fast.

     2. Poor spray booth exhaust conditions that allow the spray mist to settle on surfaces that have already been painted.

3. Improper spray technique.

Corrective Measures

1. Make sure the paint has been agitated properly.
2. Check the viscosity of the paint and compare it to the paint specification.
3. Make sure the substrate is clean and dry.
4. Check the film thickness of the paint.
5. Correct improper spray techniques.
6. Check air pressure and volume feed settings on the spray gun.