XTC Xtreme Temperature Coating — Application Directions

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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.

Description:

XTC is a high temperature / heat resistant coating formulated specifically to protect metal surfaces operating at temperatures from 500°F to 1500°F. With proper preparation, XTC provides outstanding adhesion, film integrity, corrosion resistance, weathering resistance, and thermal shock-resistance throughout this entire temperature range, and is guaranteed not to burn off!

Recommended Uses:

Engines, Manifolds, Headers, Mufflers • Furnaces, Kilns, Ovens, Stoves • Compressors, Turbines • Stoves (wood, coal, pellet, gas, etc.) • Fireplace hoods, screens, & accessories

Features:

Withstands continuous temperature of up to 1500°F (812°C) • Outstanding heat and weathering resistance • Will not peel, flake, or chalk • Long lasting • Dries for handling in 15 minutes • Once heat cured, is resistant to scratching & marring

Not Recommended For:

Parts that will be immersed • Direct contact with open flame • Cooking surfaces

Surface Preparation:

Steel surface to be coated must be dry and free from dirt, oils, rust, and other contaminants. Sandblasting is the ideal surface preparation as it leaves the ideal anchor pattern for paint adhesion. After sandblasting, use clean compressed air to blow off any residual blast media. Be sure to wear surgical-type gloves when handling to keep natural body oils off the prepared surface.

If not sandblasting, prepare surface by using wire wheel, wire brushing, or abrasive sanding using 60-80 grit paper. This method will provide a surface equivalent to that provided by sandblasting and allow the desired surface profile or anchor pattern.

Wash surface with KBS Klean at a 10:1 (Water/KBS Klean) ratio, rinse, and let dry thoroughly to wash away residual oils. Allow surface to thoroughly dry before proceeding.

Mask off areas not to be coated & protect adjacent areas with a drop cloth or newspapers.

Apply when XTC / XTC Primer and room temperatures are between 60–80°F.

Mixing:

Do not open containers until ready to use. Re-disperse settled-out pigments by stirring. Use of a mechanical mixer (KBS Hurricane Paint Mixer or similar mixing blade attached to a drill) is highly recommended. Effective mixing includes repeatedly touching the bottom of the can and lifting to disperse any settled pigments and/or matting agents. Placing the paint can upside down for a short time before opening and mixing will aid with proper mixing. Keep lid on container when not in use.

Coverage:

Theoretical coverage at one mil (25 microns) is 360–400 sq. ft. per gallon. Recommended thickness of two mils (50 microns) requires two full coats. Material losses during mixing and application will vary and must be taken into consideration. Expect up to 30% less coverage on rough surfaces. Aerosol can theoretically covers 10–15 sq. ft.

Application:

Ideal application temperatures for air and substrate are 50–82°F (15–28°C). XTC may be applied by conventional or HVLP spray, airless spray, brush, or roller. Do not apply XTC in heavier films than specified since blistering may occur. As with all KBS Products, multiple very thin, covering coats is always the best practice.

For corrosion and rust protection, metal surfaces should always be primed with XTC Primer — our silicone zinc-rich, high-temperature, corrosion-resistant primer (approx. 1.0 mil / 25μm DFT) — then top-coated with one coat (1.0 mil / 25μm DFT) of the XTC color of your choice.

NOTE: XTC Primer is not required for adhesion. Simply follow the surface preparation steps above and XTC will adhere incredibly well direct to metal with no primer needed. XTC Primer provides rust protection and corrosion protection. Strain with a standard 100-micron filter.

If not using XTC Primer, apply two coats (1.0 mil / 25μm DFT each) of XTC, allowing 1-2 hours between coats. Allow the second coat to dry 8 hours before temperature curing. The number of coats needed depends upon the service conditions of the equipment.

Spray Application:

FOLLOW ALL CAUTION AND WARNING NOTICES WHEN SPRAYING. ALWAYS WEAR AN AIR-SUPPLIED RESPIRATOR: NIOSH/MSHA approved organic vapor particulate respirator.

Spray pressure of 35–45 psi for siphon/pot guns and 25–35 psi for gravity/top container guns. Spray tip size of 1.0–1.5.

Thinning is not generally required, but if needed, 5%–10% is normally adequate. Use KBS #1 Thinner only, which is a slow-evaporating solvent. Do not reduce Xtreme Temperature Coating with lacquer thinner. Clean your spray gun immediately after using Xtreme Temperature Coating.

Brush Application:

FOR BEST RESULTS, use natural bristle, poly bristle or foam/sponge brushes. Apply thin covering coats (1.5–2.0 mils / 35–50μm wet film thickness). Do not flood surface with coating.

Brush out thoroughly, maintaining a continuous wet edge and uniform paint film. Do not overwork brushing while attempting to eliminate brush marks. Whatever brush marks don’t flow out during the air-dry process will flow out during initial heat curing. Do avoid runs or drips.

Allow first coat to air dry 1-2 hours before applying the recommended second coat. Allow second coat to cure 8 hours before temperature curing.

Aerosol Spray Application:

For best results, apply when spray can and room temperatures are between 60–80°F. Shake aerosol can vigorously for one minute after mixing ball rattles freely, and periodically during use to ensure proper mixing and prevent the aerosol spray head from clogging. Repeat shaking frequently during application.

Hold aerosol can 12–15 inches from surface and apply using steady, even strokes. Apply a minimum of two light coats, avoiding drips & runs. Allow 30 minutes drying time between coats (aerosol only). Heavy applications can lead to reduced coating life and adhesion. As with all KBS Products, multiple thin, covering coats is always the best practice.

Clean aerosol spray head immediately after use by turning can upside down and spraying until no more paint appears. If clogging occurs, remove aerosol spray head and clean with a fine wire. Replace carefully, pointing can and spray head away from you.

Allow painted surface to dry 8 hours before temperature curing.

Temperature Curing:

After proper dry time, XTC will be dry to the touch and can be handled with care, but resins will not reach full hardness until heated to approximately 350°F for 20–30 minutes. For headers or manifolds, this can be done in an oven, BBQ, or by mounting back on the engine using the method described below.

For automotive applications, install the parts and start the engine. Let it idle until the XTC begins to smoke, then immediately shut the engine off and let the manifold or header cool completely to room temperature. Repeat this process three times total. On the fourth cycle, let the engine run until the XTC smokes and this time let the engine continue running until the smoke completely dissipates. Once the smoke is gone, turn the engine off and allow the surface to return to room temperature naturally. It is important to follow this gradual process to properly cure the XTC.

Thinning:

XTC can be thinned up to 5% (20 parts paint / 1 part thinner). Only thin using KBS #1 Thinner. Use of other thinners may hinder product performance and void the product guarantee.

Avoid Over-Application:

XTC is NOT formulated to function well as a thick coating. Always apply XTC in THIN coats and just enough coats for coverage based upon the coarseness of the surface. Never overdo the number of coats of XTC or XTC Primer applied.

Dry Time:

At 70°F / 50% RH: XTC will air dry tack and thumb-print free within 30–60 minutes. Allow 1-2 hours dry time between coats. Allow at least an 8-hour solvent flash-off period before temperature cuting.

Optimum film properties require a heat cure of 350°F for 20 minutes. Equipment such as exhaust manifolds or headers protected with XTC in the air-dried state can be reinstalled and then temperature cured.

Clean Up:

Thoroughly flush spray equipment and hoses immediately after use with KBS #1 Thinner or lacquer thinner. Dismantle spray equipment and clean all parts, brushes, or rollers.

Storage:

Store in a cool, dry place with temperatures between 50°F and 100°F. Keep container closed when not in use.

Technical Data:

Frequently Asked Questions — XTC Xtreme Temperature Coating