Cold Galvanising Spray is a unique combination of zinc powders and resins - formulated to form a high performance zinc-rich coating that actively fights rust and corrosion by its galvanic properties.Ferrous metals are protected by the sacrificial action - even when scratched or damaged. Zinc becomes the anode which is attacked by corrosion and the base metal the cathode. A film of water-insoluble zinc oxide is formed -which stops rust and corrosion.
Features:
- Excellent touch-up for damaged galvanised surfaces
- Allows spot welding
- No chlorinated solvents
- Totally lead and chromate free
- Excellent corrosion resistance through cathodic protection even when the coating is scratched or damaged
- Good mechanical resistance due to the excellent adhesion on metal
- Specifications:
- NSN 8030-01-120-3553
- BSEN 1461 - 1999
- Can be over painted by most commonly used finishes
Applications:
For general use in all situations where clean and degreased metal surfaces need to be protected against corrosion:
- Power generation equipment
- Trailers
- Transmission towers
- Transformers
- Ships
- Radio and T.V. relay towers
- Sub-station equipment
- Fencing
- Structural steel
- Railroad equipment
- Roofs Guard rails
- Coastal and ship borne installations
- Storage tanks
- Welding seams rivet holes
- Off shore oil rigs
- Repair of galvanised parts
- Home - garden and farm equipment
Directions:
- Shake aerosol can very well for at least one minute after agitator ball is free
- Repeat frequently while using
- Apply to a clean - dry surface for best results. Remove rust and scale with a wire brush
- Apply in light - even coats;
- Best results are obtained with 2 lighter rather than 1 heavy coat
- Additional coats can be applied after 10-15 minutes
- A minimum film thickness of 40 m is needed for adequate protection
- When finished spraying - clean aerosol valve by turning can upside down and pressing button until only propellant escapes
- If clogging occurs - remove button and clean orifice with fine wire
- Do not use on energised equipment. Use in well ventilated area
- Appearance : smooth - dull grey finish
- Specific Gravity (@ 20C): : 1.45
- Flash Point (closed cup) : < 0C
- Coverage (40 m dry film) : 0.4 to 0.8 m2/can
- Application Conditions
- Minimum Ambient Temperature : 10C
- Minimum Surface Temperature : 5C; 3C over dew point
- Maximum Humidity : 85% RH
- Drying Time (dry-to-touch) : 40 minutes
- Curing Time : 90% cured after 7 days @ 23C
- Purity of Zinc Pigment : > 98.5%
- Dry Film Properties (40-60 m) Adhesion on
- Steel (ASTM D 3359): Gt= 0/1
- Zinc content in cured film : >80%
- Heat Resistance (4 h.) : 200C
- Low Temperature Resistance : -30C
- Salt Spray (*) (ASTM B 117) : 350 h. (40 m film thickness)
- Hardness PERSOZ (after 24 h.) : 106 s
- Hardness PERSOZ (after 1 week) : 142 s
- Flexibility (6 mm mandrel - visual) : pass
- Packaging : 400ml
* Typical corrosion protection results will depend mainly on surface conditions and environment. It may be several months to over 1 year outdoors or more than 2 years indoors. The first application therefore should be checked periodically for signs of corrosion. Once the time of protection under any specific condition is determined - Cold Galvanising Spray may be re-applied at intervals to maintain protection.
The product may be stored at normal ambient temperatures and has a shelf life of not less than 48 months with correct storage. Aerosols should always be stored below 50OC - away from direct heat and naked flame.