Axalta ViterBond ST200 Epoxy ST Primer is a surface tolerant two pack epoxy aluminium primer, used as a primer on hand prepared rusty steel and to upgrade sound existing coatings.

Approvals/Certification - UK Network Rail M24 (Item 7.1.5)

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• Features & Benefits
• Product Specification
• Film Thickness Range And Coverage
• Drying Times
• Surface Preparation
• Mixing
• Thinner
• Application Conditions
• Application Methods
• Product Notes
• Health & Safety

Features & Benefits

• Use as a rust inhibiting primer on hand prepared steel, or as a high build patch repair primer under most generic coating types.
• Approved to UK Network Rail specification as the primer of a 3 coat system applied to manually prepared steelwork.
• Excellent anticorrosive protection.
• Excellent ‘wetting’ properties for application to a manually prepared steel surface.
• Use to upgrade a conventional system to high performance epoxy/polyurethane system.
• Good chemical and solvent resistance.
• Use as a single coat system under insulation (see Product Notes further below).

Product Specification

Film Thickness Range And Coverage

Drying Times

Surface Preparation

• All surfaces to be coated should be dry and cleaned as necessary to remove all oil, grease, salts, weld flux or other contamination.  Where necessary, remove weld spatter and grind smooth all sharp edges and weld seams.
• Blast clean to Sa2½ (ISO 8501-1:2007), surface profile 50-75 microns.
• Where blast cleaning is impractical the surface should be prepared to St2 (ISO 8501-1:2007) taking care to avoid ‘polishing’ the surface.
• Can be used as a brush or spray applied primer when water abrasive blast cleaning.  Allow to dry and lightly wire brush if powdery deposits form.

Mixing

Mix only in the proportions stated, mixing each component individually then together using a mechanical agitator.  Agitate periodically during use to ensure product remains homogeneous.

Thinner

1031 Thinner

Equipment Cleaner - 950 Thinner

Application Conditions

• Only apply in conditions of good ventilation which must be maintained during drying and curing.
• Do not apply when rain, mist, sleet or snow are imminent.
• During application and drying time of the paint coating, the surface should be dry, the Relative Humidity should not exceed 85% and the steel temperature should remain at least 3ºC above the dew point.
• Only apply this product when the above conditions can be maintained throughout the critical application and drying/curing process.
• Paint temperature should ideally be at a minimum of 15ºC.
  
  

Application Methods

• Airless Spray: Output fluid pressure at tip 2000-3000 psi, Tip Size: 19-27 thou (0.48-0.68mm).
• Apply by brush over manually prepared bare steel surfaces.
• If applying by brush over blast cleaned steel, take care not to brush the coating off the peaks, or apply two brush coats for safety.
• Refer to Axalta Coating Systems ‘Epoxy Application and Curing Notes’.

Product Notes

• Overcoating with conventional, chlorinated rubber or vinyl: ideally overcoat between 24-48 hours at 23ºC. Maximum is 7 days or abrading is required.
• Overcoating with epoxy or two pack polyurethane:min 24 hours, max 3 months, at 23ºC.
• Overcoating with alkyds: starting with ViterLac AM112 MIO is recommended for good intercoat adhesion. Min 24 hours, max 7 days, or abrading will be required.
• Overcoating with itself or ViterBond WG500: whilst this product will not fully effectively cure below 10ºC, overcoating by spray, with itself or ViterBond WG500, after 16 hours at 5ºC minimum is acceptable.
• Extend min/max drying and overcoating times at lower temperatures and for dft’s above 125 microns.
• Under insulation the product is suitable for dry operating temperatures up to 150ºC with occasional surges to 200ºC.
• Do not apply or cure below 5ºC.  See ViterBond WG200 for low temperature applications.
• Colour changes can occur in exposed conditions and will occur at elevated temperatures.
• Moisture in the can may cause pressure build up.

Health & Safety

Containers are provided with safety labels which should be observed. Further information about hazardous influences and protection are detailed in individual Product Safety Data Sheets.  A Safety Data Sheet for this product is available on request from Axalta Coating Systems or from the attachements section above.

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