Material Reduction/Projector Set chart
Before spraying, the material being used must be thinned with an appropriate solvent and the proper projector set must be installed. It
is always best to follow the material manufacturers recommendations and thinning procedures.
There are two simple methods of measuring the proper thickness of a material:
1. Dip a paint stick into the material and remove it, watching carefully as the material runs off. When the material begins to form
drops, the drops should fall about 1 second apart.
2. Use a viscosity cup (P/N 0153165). Dip the cup into the material and remove it. Use a watch or clock to time how long the
material drains from the cup in a continuous stream. Once the continuous stream breaks, stop timing and refer to the table below.
Add the appropriate solvent and continue testing until the proper thickness is reached for the type of material you are using.
Material
Latex ..............................20-25% .................................. 30-35 sec. ............Water ............................................. 5
Oil ...................................10-20% .................................. 20-30 sec. ............Mineral Spirits ................................ 4
Epoxy .............................1-10% .................................... 30-35 sec. ............Mfg. Recommendations................. 5
Clear wood finish ............Full strength ........................................................Mfg. Recommendations................. 4
Varnish ...........................Mfg. Recommendations ......................................Naphtha ......................................... 3
Polyurethane ..................10% ....................................... 18-22 sec. ............M.E.K. ............................................ 3
Sealer .............................Full strength ........................................................Mineral spirits ................................ 3
Oil-based primer .............15-20% .................................. 30-35 ....................Mineral spirits ................................ 4
Fast-dry enamel .............25% ....................................... 20-25 ....................Mineral spirits ................................ 4
Stain ...............................Full strength ........................................................Mfg. Recommendations................. 3
Metal primer ...................15% ....................................... 25-30 sec. ............Mineral spirits ................................ 4
Industrial enamel ............15% ....................................... 30-35 sec. ............Mineral spirits ................................ 4
Aluminum paint ..............Full strength ........................................................Mineral spirits ................................ 4
Lacquer sealer ...............Mfg. Recommendations ........ 18-22 sec. ............Lacquer thinner.............................. 3
Lacquer ..........................50% ....................................... 18-22 sec. ............Lacquer thinner.............................. 3
Troubleshooting
Problem
A.
Little or no paint flow
B.
Paint leaking
C.
Paint is backing up past the
check valve
D.
Poor spray pattern
E.
Pulsating spray
F.
Pattern is heavy in the middle
G.
Gun spitting paint
H.
Paint build up on the air cap
I.
Too much overspray
© Titan Tool Inc. All rights reserved.
% of reduction
cause
1.
Dried paint blocking fluid nozzle
2.
No air pressure in paint cup or pot
3.
Check valve in air tube plugged
4.
No fluid pressure
5.
Blockage in material hose
1.
Improper size needle or nozzle
2.
Damaged needle or nozzle
3.
Loose nozzle
4.
Loose packing nut
5.
Needle not closing properly
1.
Gun is being tilted too much when it is not
spraying
2.
Check valve leaks
1.
Air holes in air cap ears are clogged
2.
Nozzle is clogged
3.
Damaged nozzle or needle
1.
Loose or damaged packing
1.
Too much fluid pressure
1.
Valve in air tube is not operating properly
2.
Material too thick
3.
Projector set is too small.
1.
Improper adjustment of cap
1.
Air pressure too high
2.
Material too thin
3.
Spray gun too far from surface
Time
Solvent
Solution
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2.
3.
4.
5.
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2.
3.
4.
5.
1.
2.
1.
2.
3.
1.
1.
1.
2.
3.
1.
1.
2.
3.
11
Projector Set
Disassemble and clean
Inspect air tube, cup or pot gasket, clean or replace.
Clean or replace the check valve assembly
Check material supply
Clean by flushing with solvent
Replace
Replace
Tighten
Tighten
a) Loosen packing nut
b) Replace needle spring
c) Remove dried paint from needle
Tilt the gun only when spraying
Clean or replace the check valve
Remove and clean air holes
Clean with appropriate solvent
Remove and replace
Tighten or replace
Reduce pressure
Replace valve assembly
Thin material
Install the proper projector set.
Adjust the air cap properly so that paint flows freely
through the cap
Reduce air pressure
Add unthinned paint
Move closer
English