CRC Black Zinc Rust Protection Aerosol 300g

CRC Coloured Zinc is a zinc enriched satin enamel coating in an aerosol. CRC's data sheet says high levels of anti-corrosive zinc complexes are embedded in a resin system, forming a quick-drying enamel coating with adhesion to bare metal.

This listing covers five colours: Black (CRC product number 2089), Green (2096), Orange (2101), Red (2100) and Yellow (2098). CRC also describes a coating system: CRC Zinc It as primer, CRC Prep It as an intermediate coat if a high film build is needed, and Coloured Zinc as the finish coat.

Where this product is used

• Finish coat on bare steel, iron and their welds, and on other bare metal surfaces
• Over CRC Etch It, Zinc It, Prep It and Prime It
• Re-coating over its own existing film or over clean surfaces for ongoing protection
• Black only: CRC's Black Zinc page lists structural steel, frames, welded seams, spot welding repairs, rivet holes, signs, signposts, pipes and roofs
• Black only: transformers, transmission towers, earth pegs, water tanks, tank stands, fences and gates

Features

• Zinc enriched: high levels of anti-corrosive zinc complexes in a protective enamel coating
• Satin finish in five colours: Black, Green, Orange, Red and Yellow
• Heat resistance up to 120 °C
• Corrosion Protection Factor 36; CRC says up to 3 years before recoating, depending on conditions
• Touch dry in 15 to 20 minutes and full cure in 24 hours, per CRC's application data
• Ready to use aerosol: CRC says no additional mixing or chemical additives are required
• CRC states it does not contain CFCs or methylene chloride

Key specifications

Available sizes

Selecting the right option

CRC recommends priming with CRC Aerosol Zinc It Galvanic Rust Protection 350g and using CRC Prep It Anti-Corrosive High Build Easy Metal Primer 2114 - 400ml as an intermediate coat when a high film build is wanted. Blue and White are on CRC Heavy Duty Zinc Rich Anti-Corrosive Coating.

Using it

Surface preparation per CRC: remove signs of corrosion with a wire brush or emery paper. If rust cannot be removed, treat the surface with CRC Rust Converter after thoroughly abrading the rusty areas. Clean with CRC Brakleen or a similar degreaser if required, and where possible abrade with disc grinding, wire brush or sandpaper.

Shake the can until the agitator ball is moving freely, then for at least 1 further minute. Apply a number of thin coats with smooth even strokes to a clean, dry surface, holding the can approximately 25cm from the surface.

When finished, clean the valve by turning the can upside down and pressing the button until only pressure escapes. Clean up with mineral turpentine or white spirits.

CRC's data sheet gives two recoat statements: the application data says overcoat within 1 hour or after 24 hours, while the feature line says recoat within 30 minutes. The application data is used on this page.

Storage and handling

Do not puncture, incinerate or store above 50 °C. Do not place in direct sunlight or near any heat source. CRC gives a conditional warranty of 5 years from the date of manufacture.

Limits and safety

SDS classification: signal word Danger. Extremely flammable aerosol. Pressurised container: may burst if heated. Causes skin irritation. Causes serious eye irritation. May cause drowsiness or dizziness. May damage fertility or the unborn child. May cause damage to organs through prolonged or repeated exposure. Transport: UN 1950, Aerosols, Class 2.1, no packing group allocated. Aerosol cans will conduct electricity: keep away from all live electrical sources including battery terminals, solenoids and electrical panels. Keep away from naked flames and ignition sources. Use with adequate ventilation. The Black colour has its own safety data sheet (it also classifies Black as a Schedule 5 (S5) poison) and carries some different hazard statements from the other four colours; these are given in the variant details. Read the safety data sheet before use.

Frequently asked questions

What temperature does CRC Coloured Zinc resist?

CRC's data sheet gives heat resistance up to 120 °C.

How long does CRC Coloured Zinc take to dry?

CRC's application data gives touch dry in 15 to 20 minutes, overcoat within 1 hour or after 24 hours, and full cure in 24 hours.

What is the coverage of a can?

CRC gives a theoretical coverage of up to 2 m² per aerosol can (up to 10 m² per 1 L).

Can it go over other CRC coatings?

CRC says it can be applied over bare steel, iron and welds, and over CRC Etch It, Zinc It, Prep It and Prime It. It can be overcoated with itself.

How long before recoating outdoors?

CRC gives Corrosion Protection Factor 36 and says reapplication outdoors is needed up to 3 years, depending on conditions.

Is CRC Coloured Zinc a dangerous good?

Yes for transport: the SDS lists UN 1950, Aerosols, Class 2.1, no packing group allocated. It carries the signal word Danger and may damage fertility or the unborn child, so read the SDS for your colour before use.

Related products

See also: CRC Heavy Duty Zinc Rich Anti-Corrosive Coating, CRC Aerosol Zinc It Galvanic Rust Protection 350g, CRC Prep It Anti-Corrosive High Build Easy Metal Primer 2114 - 400ml, CRC Prime It Anti-Corrosive Primer for Steel 2091 - 400ml, CRC Etch It Etch Primer for White & Yellow Metals 2110 - 400ml.