Steel Master 9500 30% Silicone Alkyd

A heavy-duty, VOC-compliant protective topcoat, Steel-Master™ 9500 dries to a tough, flexible finish with very good gloss and color retention, and provides long-term exterior durability for a single-component alkyd product.

Steel Master™ 9500 is a high-performance, single-component, 30% silicone alkyd topcoat designed for both interior and exterior applications. It provides a tough, flexible, high-gloss finish with excellent color and gloss retention, making it ideal for long-term durability in industrial and commercial environments. This product is suitable for use on properly prepared steel, concrete, masonry, primed galvanized surfaces, and aluminum.

Steel Master™ 9500 is used as a topcoat in a multi-layer coating system. It must be applied over a compatible primer depending on the substrate. The system typically includes:

- Primer (substrate-specific, see below)

- Topcoat: 2 coats of Steel Master™ 9500

Compatible Primers by Substrate:

- Steel (Alkyd System): 1 coat Kem Bond HS Primer or Kem Kromik Universal Metal Primer

- Steel (Acrylic System): 1 coat Pro Industrial Pro-Cryl Primer

- Aluminum: 1 coat DTM Wash Primer or Galvite HS

- Galvanized Steel: 1 coat DTM Wash Primer or Galvite HS

- Concrete Block: 1 coat Pro Industrial Heavy Duty Block Filler

- Concrete and Masonry: 1 coat Loxon Concrete and Masonry Primer

Steel Master™ 9500 is recommended for use on:

- Structural steel

- Machinery

- Piping and tanks

- Buildings and bar joists

- Signage and logo/identification enamel

- Interior and exterior surfaces in USDA-inspected facilities

- Application Methods: Airless spray, conventional spray, brush, or roller

- Recommended Wet Film Thickness (WFT): 3.5–5.0 mils

- Recommended Dry Film Thickness (DFT): 2.2–3.2 mils

- Coverage: 320–466 sq. ft. per gallon per coat (theoretical coverage at 1 mil DFT is 1026 sq. ft./gal)

- Mixing: Minimum 5 minutes on a mechanical shaker; ensure uniform consistency before use

- Stripe Coating: Required for welds, crevices, and sharp angles

- Spray Overlap: 50% overlap recommended to avoid holidays and pinholes

- Brush/Roller Application: May require multiple coats for uniform appearance and film build

Environmental and Application Conditions:

- Temperature Range: Minimum 45°F (7°C), maximum 100°F (38°C); surface, air, and material must be at least 5°F above dew point

- Relative Humidity: Maximum 85%

- Not UV Stable: While it offers good gloss and color retention, it is not classified as UV stable or UV resistant

- VOC Content: 307 g/L (2.56 lbs/gal)

- Flash Point: 112°F PMCC

- Shelf Life: 24–36 months unopened, depending on base color

Pot Life, Curing, and Recoat Times (at 4.0 mils WFT, 50% RH):

- Touch Dry: 1–5 hours (depending on temperature)

- Handle Time: 8 hours to 2.5 days

- Recoat Time: 8 hours to 2.5 days

- Full Cure: 3 to 30 days (temperature dependent)

- Do not reduce the material, as it may affect film build and performance.

- Not compliant with SCAQMD, CARB, or LEED v4 VOC/emission standards.

- Not EPD or MPI certified.

- Not recommended for use with interior-only colorants in exterior applications.

- Surface preparation is critical for performance; follow SSPC and ICRI standards for each substrate.

- For previously painted surfaces, adhesion testing is recommended after surface dulling and cleaning.

- Clean tools and equipment with compliant solvent immediately after use.

- For best results, apply in controlled conditions and avoid application in high humidity or near dew point.

Steel Master™ 9500 is a versatile and durable topcoat solution for industrial and commercial projects requiring a high-gloss, long-lasting finish on metal and masonry substrates. When used with the appropriate primer, it forms a complete protective system suitable for a wide range of environments.

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