Protective Coatings
Vetotop AC441

Elastomeric, pigmented acrylic, anti-chloride ion, and carbonation protective and decorative coating for concrete and masonry

Uses
To protect atmospherically exposed reinforced concrete structures from attack by acid gases, chloride ions, oxygen, and water.
Suitable to protect all cementitious substrates and masonry, including those in coastal environments.
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Technical Information
Product Description

Vetotop AC441 is a single component penetrating silane-siloxane primer and a single component elastomeric pigmented coating, both ready for immediate site use. Vetoprime AP443 is supplied as a clear liquid and is based on an acrylic resin and a silane-siloxane dissolved in a penetrating organic carrier. Vetoprime AP443 is reactive and capable of producing a chemically-bound hydrophobic barrier, thus inhibiting the passage of water and water-borne contaminants. Vetotop AC441 is a crack-accommodating, water-based protective coating based on a special acrylic polymer, providing outstanding elongation and recovery, resistance to aggressive elements, UV light, and rain.

Advantages
  • Can accommodate substrate cracking up to 2 mm and cyclic movement up to 0.3 mm.
  • Real elastomeric coating with excellent elongation and recovery properties.
  • Excellent barrier to carbon dioxide, chloride ions, oxygen, and water.
  • Allows water vapor to escape from the structure.
  • UV-resistant with high resistance to the effects of long- term weathering.
  • Wide range of decorative colors.
  • Fast dry; it can be recoated within 2 hours, thus reducing dirt pickup and down-time.
Packaging & Coverage

Vetotop AC441 is supplied in 20Kg Pail. Consumption of 4m2/kg @200 mic WFT.

Vetoprime AP443 is supplied in 5 Liter Can. Consumption of 0.4Liter/m2

Stated consumption data are for general guidance. Actual consumption depends on the nature of substrate, method of application, and wastage.

Shelf Life & Storage

The original sealed buckets of Vetotop AC441 and Vetoprime AP443 have a shelf life of 12 months, provided it is stored clear of ground in a dry and shaded place below 35ºC.

Colors
Wide range of decorative colors.
Application Information
Instructions for use

Design Criteria

Vetotop AC441 should generally be applied in two coats to achieve a total dry film thickness of not less than 200 microns to accommodate substrate cracking up to 2 mm and cyclic movement up to 0.3 mm. It is possible to achieve the total dry film thickness in one coat; however, this depends on the substrate type, and the finish required. Trials are recommended before the full application to ensure the finish meets the client's requirements. Vetotop AC441 must be applied to the substrate at the coverage rates suggested achieving the correct protective properties. 

Priming
Firstly, apply Vetoprime AP443 in one or more coats until achieving the recommended application rate of 0.4 liters per square meter. This is best accomplished by using portable spray equipment. A uniform surface appearance (sheen) should be conducted.
Allow the primer to dry for a minimum of two hours (at 20°C) before overcoated with Vetotop AC441.

Application
To obtain the Vetotop AC411 system's protective properties, the correct rates of application and overcoating times must be observed.
Apply Vetotop AC441 in two coats. The first coat can be thinned with clean water depending on the substrate. The recoat time for the second coat is two hours. If necessary, a third coat can be applied to achieve a hiding power.
No gaps or 'raw edges' must appear in the finished coating. Take special care to provide an unbroken layer at the external corners and similarly exposed protrusions.
Vetotop AC441 may be applied by the use of suitable brushes, rollers, or airless spray equipment.

Cleaning
Remove Vetotop AC441 from tools and equipment with clean water immediately after use.

Surface Preparation

All surfaces should be dry and free from any contamination, traces of mold release oils, and curing compounds. This is best achieved by lightly grit-blasting the surface. Where moss, algae, or similar growths have occurred, treatment with a proprietary biocide should be carried out after the grit-blasting process.
Where required to apply over existing sound coatings, conduct trials to ensure compatibility and retention of the bond between the underlying and substrate layer. It is essential to produce an unbroken coating of Vetotop AC441. Fill surfaces that contain blow-holes or pitting areas using Vetorep CR523, a cementitious fairing coat. Level rougher substrates by using a cementitious product from Saveto Concrete Repair Range.

Limitation
  • Vetotop AC441 is formulated for application to clean, sound concrete or masonry. Where required to apply over existing sound coatings or paints, conduct trials to ensure compatibility and retention of the bond between the underlying layer and the substrate.
  • Do not commence Vetotop AC441 application if the temperature of the substrate is below 5°C.
  • Do not apply the product in windy conditions where early-age dust adhesion may occur, or where rain is likely within 2 hours at 20°C, or within 20 hours at 5°C.
  • Do not consider the use of Vetotop AC441 for areas subjected to exposure to ponded water. Consider using Vetotop AC442 on this occasion.
Additional Information
Health & Sefety

Vetotop AC441 should not come in contact with the skin and eyes or be swallowed. In case of skin contact, rinse with plenty of clean water, then cleanse with soap and water.
In case of contact with eyes, rinse immediately with plenty of clean water and seek medical advice.
If swallowed, seek medical attention immediately, do not induce vomiting.
Vetotop AC441 is non-flammable.

Important note

Saveto endeavors to ensure that any advice, recommendations, information it may give is accurate and correct. It cannot accept any liability either directly or indirectly arising from the use of its products because it has no direct or continuous control over where or how its products are applied, whether or not following any advice, specification, recommendation, or information given by us. Saveto has the right to change any of the technical datasheets' specifications upon its discretion without prior notification.

Hard copies of TDSs are printed once or twice a year. Our technical data sheets are continuously updated as per R&D improvements and new 3rd party testing; kindly refer to our website for the latest updated TDSs.

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Contact us
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Saudi Vetonit Co. Ltd. (SAVETO)
P.O. Box 52235 Riyadh 11563, KSA
Toll: (+966 11) 265 3334
Fax: (+966 11) 265 0936
Sales
800 124 9009
Fax: (+966 11) 265 0718
Email: sales@saveto.com