Skip to main content
Submitted by webmaster on 5 June 2024

Vetotop AC441

Elastomeric, pigmented, anti-chloride, ion & carbonation acrylic coating.

Vetotop AC441 is a single component penetrating silane-siloxane primer and a single component elastomeric pigmented coating, 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.

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.

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. 

Usage Instructions

All surfaces should be dry and free from 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. 

Firstly, apply Vetoprime AP443 in one or more coats until achieving the recommended application rate of 0.7 m2/liter/ coat @50 microns thickness. This is best accomplished by using portable spray equipment. Conduct a uniform surface appearance (sheen). 

Allow the primer to dry for a minimum of two hours (at 20°C) before overcoated with Vetotop AC441. 

To obtain the Vetotop AC441 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, apply a third coat 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. 

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

EXPLORE MORE PRODUCTS

Vetotop EPU497

Epoxy Polyurethane (EPU) Coating.

Vetotop AC440

Acrylic Protective Coating.

Vetotop EC198

Water-Based Epoxy Coating.