• To protect atmospherically exposed reinforced concrete structures from attacks by acid gasses, chloride ions, oxygen, and water.
• Can protect all cementitious substrates and masonry (including those in coastal areas).

Vetotop AC441 is a single-component, elastomeric, and pigmented coating that is ready for immediate use on site. It is also a crack-accommodating, water-based protective coating based on a special acrylic polymer, allowing it to provide outstanding elongation and recovery, resistance to aggressive elements, UV light, and rain.

Features and benefits:

• 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. u 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.

Carbon Dioxide Diffusion Resistance (Taywood Method):

• Equivalent thickness of air (Sd): >250 m.
• Diffusion Equivalent Thickness of Concrete (Sc): >65 cm.
• CO₂ Diffusion Coefficient: 1.16 x 10^-07 cm²/sec.
• CO₂ Diffusion Resistance No: 1.28 x 10⁰⁶ cm² sec.
• Chloride ion Diffusion after 35 Days (cm²/s) (Taywood Method): Nil. 

Water Vapour Transmission Resistance (AS/NZS 4548.5-1999/ ISO 7783):

• Equivalent Thickness of Air (Sd): 0.33 m.
• Scrub Resistance Test - ASTM D2486-06: Passed 6000 strokes (3000 cycles).