Product Description

Burgess Heavy Duty Rust Cure is a unique anticorrosive rust converter based on a co-polymer latex combined with a novel organic chelating agent. It is designed for application directly onto rusted steel with minimal surface preparation.  

Suggested Uses:

Burgess Rust Cure has been successfully used on the following applications, ships ballast tanks, steel bridges, harbour installations, oil rigs, sewage treatment works, storage tanks, structural girders, railway vehicles, and Automotive; floor pans, chassis, wings and door interiors.

Preparation

Wire brush the substrate to remove loose flaking paint and rust, remove any high surface peaks by abrading and then was the substrate with detergent to remove oil and grease. The surface should then be cleaned using high pressure water wash to remove the detergent and any corrosion salts. Do not remove all traces of rust, the presence of rust is necessary for the complete chemical reaction of the rust cure 

Application

It is recommended to carry out an initial test area at all times. This test should take place in the working conditions of application. The topcoat system should also be tested for compatibility.

Stir the product thoroughly before use, then decant sufficient material for the operation into a suitable non metallic container. To avoid contamination do not pour any unused material back into the original bulk container.

Apply a minimum of two coats by brush spay or roller achieve a wet film thickness of 120-180um per coat (50 - 75um DFT)

Brush Application by brush is preferred for the first coat to ensure full penetration when the substrate is heavily rusted.

Roller Use a short nap roller and apply the coating evenly, edges may need to be stripe coated by brush to ensure the substrate is completely coated.

Spray The coating may be applied by air assisted or airless spray techniques, typical gun settings are as follows:

Airless Spray Air assisted ( syphon or pressure fed)

100 - 130Kg/cm2 tip pressure 3.5 - 4Kg/cm2 air pressure

250 - 400 um tip 250- 400 um tip

40 - 60 degrees fan 40 - 60 degrees fan

 For syphon fed guns up to 10% clean water may be added to ensure good atomisation.

 Atmospheric Conditions

External An air temperature of 5 - 30oC is preferred, avoid applying if relative humidity is greater than 80%. Avoid applying when there is a risk of rain or condensation during the drying period.

Internal Ensure air movement is available to remove excess moisture during the drying process.

 Cleaning

Immerse brushes, rollers or spray tips in clean water during work breaks to prevent paint drying. Use water to clean equipment before paint dries. To remove dried paint use lacquer thinner or aromatic solvent.

 Physical Properties

 Appearance Milky thixotropic liquid

pH @ 20oC 2.0 - 4.0

Viscosity @25oC 5000 - 7000 cps Brookfield Spindle 7 @ 50rpm

Non Volatile Content (Volume) 43%

Specific Gravity @ 20oC 1.32

Flash Point 58oC

Volatile Organic Content 23g/Ltr

Touch dry 15 - 30 minutes

Coverage @ 150um WFT 6 - 8m2 per litre

Water Vapour Permeability

25um DFT @ 38oC 90%RH <50g/m2

Electrical conductance 109Ohm/5cm2

Impact Resistance Pass 1cm deep impact

Hardness ( pencil) 2H - 3H (on rusted Steel)

Salt Spray ASTM B117-85

@ 75um DFT * 1000 Hours

 

 Chemical Resistance

Burgess Rus Cure exhibits excellent resistance to acid and alkali splashes. Contact with aliphatic or aromatic solvents will cause softening of the film which will recover

Storage

Store in a cool dry area between 5oC and 30oC out of direct sunlight and protect from frost.