CRC Zinc It - Quick-Drying, Tough Coating - CRC NZ
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CRC Zinc It

Galvanic Rust Protection For Steel

Related categories:
Zinc Range

CRC/Barcode Name Pack Size
Can 1 litre 2
Aerosol 350 g 6
Aerosol 500 g 6

CRC Zinc It is a weld through single component zinc-rich compound that offers the same advantages as hot-dip galvanising by forming a highly-protective coating with 95% highest purity zinc on bare steel or iron surfaces. It is ideal for repairing damaged galvanised surfaces or as a convenient and easy-to-apply alternative if hot-dip galvanising is not available.

The zinc particles fuse directly to clean metal and form an electro-chemical bond that – due to sacrificial anodisation of zinc – stops rust and rust creepage, even when scratched, abraded or dented.

The quick-drying, tough coating is resistant to salt corrosion, water and heat and makes CRC Zinc It the premium product if long-term protection in harsh conditions and highly corrosive environments is required.

CRC Zinc It provides excellent cover and is capable to be applied as a heavy film for extra protection without forming runs. Delivered from a unique aerosol system giving a smooth even coat.

Ongoing protection can be achieved through simple re-coating within 6 years, depending on conditions. Protection in extreme conditions may require re-application more frequently.

CRC Zinc It can act as a finish coat on clean iron, steel and their welds. Top-coating CRC Zinc It with another product of CRC’s Zinc coating range provides extra protection and a selection of bright metallic or coloured gloss finishes – the ultimate choice for your application.

If other colours are required, CRC Zinc It can be top-coated with most standard decorative paint systems for metals.

Features & Benefits

  • Zinc-rich – 95% highest purity zinc in the dried film, fuses directly to iron or steel surfaces
  • Weld through - Zinc It provides a unique coating that can be welded through
  • Same advantages as hot-dip galvanising – Exceptional rust protection
  • Excellent adhesive qualities – Forms a tough coat for long-term protection
  • Easy application – High film build in one step
  • Heavy-duty – Resistant to salt corrosion, water and heat. Powerful protection in harsh conditions
  • High Heat Resistance – Up to 500°C
  • Long-term corrosion protection – Corrosion Protection Factor 72 (up to 6 years outdoors, depending on conditions)
  • Sacrificial anodisation of Zinc – Stops rust and rust creepage even when scratched, abraded or dented
  • Fast drying – Touch dry in 20 minutes, recoat at any stage, full cure in 24 hours
  • Easy re-application over existing film and/or clean surfaces – For ongoing protection
  • Finish coat – Can act as the finish coat, no need for primer
  • Excellent primer – May be over-coated with most standard protective paint systems for metal
  • Does not contain CFCs, methylene chloride
  • Excellent weldability
  • MPI Approved C23


  • Structural steel or frames – Welded seams, spot welding repairs, rivet holes, signs and signposts, pipes, roofs
  • Electrical – Transformers, transmission towers, earth pegs
  • Farm equipment – Water tanks, tank stands, fences, gates, animal raceways in milking sheds and yards, farm implements and tractor draw bars, metal junction, terminal boxes, pump equipment, corrugated metal buildings
  • Boats and boat trailers – Shackles, winches, draw bars, subframes, wheel and guards
  • Car or caravan – Inner door panels, tow bars, exhaust tail pipes and wheel protection under hub caps
  • Perfect touch-up – For galvanised products which have been cut, drilled or welded
  • At home – On iron railings, roofing and spouting, gutters, plumbing, ducting, radio and TV aerials, outdoor fixtures, hinges, fences and gates, wrought iron, air conditioning and refrigeration units
  • Industrial – Equipment and machinery, machine housings
  • Roading and Construction – Bridges, guard rails, lamp stands
  • Wherever galvanising requires repair or bare steel or iron needs protection
  • For use on steel or iron – Not effective when used on non-ferrous metals

Application Method



Physical Properties

Propellant (Aerosol) LPG
Flash Point 26°C
-81°C (Propellant)
Temperature Range Up to 500°C intermittently, up to 320°C continously
Corrosion Protection Factor 72
Reapplication period Indoors As required
Reapplication Period Outdoors Up to 6 years, depending on conditions
Colur Grey
Specific Gravity 2.1

Performance Characteristics

Touch Dry 15-20 minutes
Full Cure 24 hours
Time To Overcoat 1 hour
Theoretical Coverage Up to 10m²/1L, Up to 2m²/aerosol can
Clean Up With Mineral turpentine or white spirits


Shipping Details (Aerosol 2085)

Shipping Name Aerosols
Technical Name
Class 2.1
HSNO Classification 2.1.2A
Hazchem 2YE
UN Number 1950
Pk Group N/A
F Pt N/A

Shipping Details (2185)

Shipping Name Paint
Technical Name
Class 3
HSNO Classification 3.1B 
Hazchem 3YE
UN Number 1263
Pk Group II
F Pt 15


Material Safety Data Sheet

Summary Version Full Version
CRC Zinc It - BulkCRC Zinc It - Bulk
CRC Zinc It - AerosolCRC Zinc It - Aerosol


CRC/Barcode Pack Sizes Available
Can 1 litre, pack size 2
13.60cm H x 11.00cm W x 11.00cm D : 2.35kg
Aerosol 350 g, pack size 6
20.80cm H x 6.80cm W x 6.80cm D : 0.46kg
Aerosol 500 g, pack size 6
24.80cm H x 6.50cm W x 6.50cm D : 0.56kg


CRC Zinc It - Galvanic Rust Protection
CRC Zinc It offers the same advantages as hot-dip galvanising by forming a highly-protective coating with 95% highest purity zinc on bare steel or iron surfaces.