Full Product Manual

6
FINISH MAX
®
FINE FINISH SPRAYER (C800766) ENGLISH
THINNING MATERIALS
In order for your sprayer to operate properly it is important to make sure the stain or paint is
thin enough to be sprayed. Thinning should be followed per the stain or paint manufacturer’s
guidelines. Because materials differ from brand to brand, this guide can offer only general
information. The final guide to correctly thinned stain or paint is achieving the proper
spray pattern as shown in Figure A. Always follow the coverage rate recommended by the
manufacturer regardless of the thinning required. Because there is a variance in viscosity
between paint and stain brands, it might be necessary to thin five to 15 percent to achieve
optimum spray pattern.
Use the viscosity cup (included) and the chart below to determine whether you’ll need to thin
the material you’re using:
1. Dip the viscosity cup fully into the liquid you intend to spray.
2. Lift the viscosity cup out of the liquid, and while holding the cup over the paint or stain
can, time how long it takes for the liquid to drain out of the cup. This is known as the
liquid’s run-out time. If it takes longer than the time shown on the chart for the liquid to
leave the viscosity cup, thin the liquid until the run-out time falls within the time bracket
shown for the liquid you’re using.
3. When you’ve completed this process, clean the viscosity cup with warm, soapy water if
you’re using a water-based product or per the manufacturer’s instructions if you’re using
an oil-based product.
NOTES:
• Be sure pick-up tube is inserted tightly into the intake port.
• Thin material according to the procedure outlined above.
• Before each use, check the Brass Fluid Nozzle and Brass Fluid Needle for dried paint.
Keep Brass Fluid Needle clean.
• Always thoroughly clean the sprayer after each use.
(See CLEAN UP AND MAINTENANCE, page 9.)
• Turn control knob counterclockwise for less flow — see Page 6 Step 7 for more detail.
• Strain old paint or stain before using.
• Slowly stir paint or stain. To prevent air bubbles, do not shake stain or paint.
RUN-OUT TABLE AND THINNING CHART
Material (Oil-based or Water based) Run-Out Time (seconds)
Clear Sealer No thinning required
Enamel 25 to 40
Polyurethane No thinning required
Primer 30 to 45
Stain No thinning required
Varnish 20 to 50
Latex Paint 25 to 40
HOW TO USE (CONTINUED)
A
B
Finest Spray Pattern
Less Output Volume
Fine Spray Pattern
More Output Volume
Less Thinning (5 - 6%)
THINNING GUIDE
More Thinning (up to 20%)