Printer Friendly Version KBS MAXX Clear Order KBS MAXX Clear Paint Spraying Guidelines

To achieve expert results, please take the time to carefully read and understand the following directions before you begin your restoration project. These directions are meant to be general guidelines only and do not cover every application or environmental situation. If you have remaining questions or concerns, please contact us for technical assistance.

ALWAYS WEAR PROTECTIVE GLOVES AND SAFETY GLASSES. ALWAYS WORK IN A WELL-VENTILATED AREA. Please heed all labeled warning and caution notices on all products.

Surface Prep

Do not apply if surface temperature is below 45ºF (7ºC) or above 110ºF (43ºC), or if the surface temperature is within 5ºF of the dew point. At a minimum, the surface should be clean of all grease, dirt, oil, rust, and foreign material which would be detrimental to proper adhesion and desired performance of the coating system being applied.

Surface Primer

Use the KBS 3-Step System of Klean, RustBlast, and RustSeal for the ultimate in surface prep and rust prevention. Coat over RustSeal with KBS MAXX, BlackTop, or some other solid color UV stable topcoat (Not KBS MAXX Clear). KBS MAXX Clear may be applied over KBS MAXX and most epoxy and/or urethanes. Follow manufacturers topcoat guidelines.

Mix Ratio

3 parts base to 1 part activator by volume. Mix KBS MAXX Clear thoroughly. Use of a mechanical mixer is highly recommended.

In a mixing cup/container, carefully measure 3 parts base component. Add 1 part MAXX activator. Mix thoroughly. KBS MAXX Clear and MAXX Activator are pre-thinned and ready to apply by Brush, Roller or Sprayer.

Application Characteristics

Mix Ratio: Mix 3:1 (Base Component:Activator)

Reducer: Ready to Apply. KBS #1 Thinner or MAK Acetone may be added if needed.

Cleaning Solvent: KBS #1 Thinner, MEK or MAK.

Pot Life: Doubles in viscosity in 30 minutes.

Dry Times:

Touch: 30 minutes
Through Dry: 1 – 2 Hours
Hard: 3 – 4 Hours
Recoat: Anytime within 7 days.

Force Cure: Allow 15 minutes to Flash, 20-30 minutes @ 140°- 180°F

Full Cure: A Function of Time, Temperature, and Film Build. This Product will not reach Full Cure for 7 days.

Note: Test Performed @ 77° F 50% Relative Humidity


For optimum results KBS MAXX can be applied by Brush or Roller and also using spray equipment such as Conventional Electrostatic, Conventional suction spray gun, HVLP, Air Assisted Airless, or Airless.

Conventional Electrostatic:
Air Pressure:
40 - 60 psi
Fluid Pressure:
15 -20 psi
Cap: Medium Visc.
Tip: 1.2 - 1.5 mm
Conventional Spray:
Air Pressure:
40 - 60 psi
Fluid Pressure:
15 - 20 psi
Cap: Medium Visc.
Tip: 1.2 - 1.5 mm
HVLP Spray:
Air Pressure:
15 - 20 psi
Fluid Pressure:
15 - 20 psi
Cap: Medium Visc.
Tip: 1.2 - 1.5 mm
Air Assisted Airless:
Air Pressure: 15:1 ratio pump or larger @ 80-100 psi
Atomizing Air:
Adjust as needed
Cap: Medium Visc. Tip: 0.09 - 0.13”
1500 psi minimum
Tip: 0.09 - 0.11”

Brush and Roll: Utilize a natural bristle brush or high-density foam roller and reduce/thin with Acetone. When brushing KBS MAXX Clear, for best results, do not overwork the brush as this can cause the KBS MAXX Clear to cure too quickly possibly leaving visible brush marks. It is best to brush an area with KBS MAXX Clear and move on immediately versus brushing an area over and over again. If you brush over an area over and over again forcing the solvents out, you run the risk of the brush marks not flowing out as well they are designed to flow out.

Note: The above parameters are to be used as a guideline only. Customer specific equipment may require a different set-up.

Clean Up

KBS #1 Thinner or lacquer thinner for cleanup. KBS MAXX Clear must be cleaned up immediately before it dries. Once cured, KBS MAXX Clear cannot be removed by any solvent. Wear protective gloves to avoid skin contact.

Dry Time / Cure

Air Dry: Curing is a function of Time, Temperature, and Film Build. Air dry in 30 minutes to touch, thorough dry in 1-2 hours, dry hard in 3-4 hours. Tested @ 77º F @ approx. 70% relative humidity.

NOTE: The above information is supplied as a guideline to our customers. The user must be aware of the cleaning, pretreatment, application, and testing requirements for their specific job!

Physical Properties

Volume Solids:
60.5 +/- 2.0%
QUV 313B:
1000 hours
Weight Solids:
67.4 +/- 2.0%
Pencil Hardness:
2H @ 72 Hours
24 hours 150°F - no discoloration
10%-Sodium Hydroxide:
Weight Per Gallon:
8.76 +/- 0.2 lbs/gallon
Impact Direct/Indirect:
160 inch-pounds
Theoretical Coverage:
450 sq ft/gal @ 2 mil DFT
Dry Heat Resistance:
1 hour at 250ºF, less than 1.0 DE
2.8 lbs/gallon mixed
Recommended Film Thickness:
1.5 – 2.0 mils DFT
27 - 33 seconds #2 Zahn cup (mixed)
Salt Spray (B117):
Q-Steel panels prepared with RustSeal/KBS MAXX system of 3.0 – 4.0 dft
2000 hrs.

Chemical Resistance

MEK, 100 Double Rubs:
Pass @ 24 hours
10%-Hydrochloric Acid:
Lubricating and Cutting Oils:
10%-Acetic Acid:
24 hours 150°F - no discoloration
10%-Sodium Hydroxide:
Water Immersion:
JP 5:
Pass at 70°F
for 7 days