Sigmatherm 540 Aluminum

Description

Sigmatherm 540 Aluminum is a one component, heat-resistant, moisture-curing silicone paint that provides protection for steel structures at temperatures up to 600°C.

Applicability Sigmatherm 540 Aluminum

This coating is suitable for both internal and external protection of steel structures exposed to high temperatures, such as pipelines, chimneys and industrial furnaces.

Features and benefits

• Heat resistance: resistant to dry heat up to 600°C.
• No interim heat treatment required: no heat shock is required between layers.
• Weatherproof: excellent resistance to weathering.
• Processing temperature: workable up to 10°C.

Compatibility

Sigmatherm 540 Aluminum can be applied to steel that has been blasted to ISO-Sa2½ or machine cleaned to ISO-St3. It is also suitable for use over zinc silicate primers.

Color and gloss level

Available in aluminum color with a eigluster finish.

Instructions for use

Stir the paint well before use until it is homogeneous in color and texture; in practice, up to 5 minutes of stirring is sufficient.

Drying times and thinning

• Dust dry: 45 minutes at 20°C.
• Paintable: after 24 hours at 10°C.
• Fully cured: at least 3 days at 20°C before exposure to heat.

Normally, dilution is not required. If required, a suitable thinner can be used; refer to the technical data sheet.

Yield and layer thickness

The theoretical yield is 18 m² per liter at a dry film thickness of 25 µm. The recommended dry film thickness is 25 µm per coat.

Application methods

Sigmatherm 540 Aluminum can be applied by brush, roller (above the waterline only) or spray equipment. For best results, air spraying is recommended with a nozzle opening of 1.5-2 mm and a pressure of 3-4 bar.

Downloads

• Product document
• Safety data sheet