*Ronacrete RonaBond Crack Bridging Anti-Carbonation Coating WB

Please note, this product is now discontinued. Please contact our Technical Team on 01462 421333 to discuss a suitable alternative.

Ronacrete RonaBond Crack Bridging Anti-Carbonation Coating WB is a high build elastomeric, waterproof and carbonation resistant coating.

Best Uses

RonaBond Crack Bridging Anti-Carbonation Coating WB is a façade coating formulated on a water-based acryl-siloxane. It is used as a waterproof decorative coating and can be applied to most traditional building surfaces after suitable preparation. The addition of siloxane improves shedding of pollutants from the surface and resistance to migration of residues from the substrate. The addition of glass micro-spheres improves application properties and vapour transmission.

RonaBond Crack Bridging Anti-Carbonation Coating WB protects façades against water ingress while allowing improved diffusion of normal levels of moisture vapour from the background provided by inclusion of glass micro-spheres in the formulation. The micro-spheres also provide improved application characteristics. When applied to reinforced concrete it provides excellent protection against corrosion of reinforcement.

• High build anti-carbonation coating with excellent CO2 resistance
• Excellent self-cleaning properties
• Matt finish
• Elastomeric & waterproof façade coating
• Available in colours from Zolpachrom 2 & 3 ranges and suitable RAL colours
• Dynamic crack accommodation up to 2mm
• Water based
• Excellent application properties
• Prime normal porosity backgrounds with diluted coating, meaning less wastage

Application

Preparation
Prepare the substrate by suitable means (e.g. blasting, high pressure water/grit, scraping, chemical removal) to provide a sound and stable and clean surface; surfaces may be damp but not wet with running water or condensation. Treat surfaces contaminated with moss, algae, fungal growth, etc with RonaBond Fungicidal Treatment or suitable anti-fungal agent such as Centrecoat GS36.

Surface Levelling and Repair Prior To Application
The application of RonaBond Crack Bridging Anti-Carbonation Coating WB (and other paints/coatings) will highlight and exaggerate surface imperfections and undulations. Uneven surfaces may be levelled with RonaBond Easy Skim FC.

Priming
Prime surface with RonaBond Crack Bridging Anti-Carbonation Coating WB diluted with 10% clean water at a rate of 6-7m2 per litre. For high suction backgrounds contact our technical team for advice.

Cracks
Fill fine cracks with RonaBond Stop Crack using a palette knife as appropriate, application should be repeated until the dry crack filler has fully filled the crack.

Application
Apply one or more coats of RonaBond Crack Bridging Anti-Carbonation Coating WB (system dependent) to achieve the specified film thickness and / or dynamic crack accommodation requirement. Apply by RonaBond long-haired roller or airless spray.

A mottled surface texture is a good indicator of adequate spread rate but regular use of a wet film gauge is recommended to ensure the correct coverage. When applying RonaBond Crack Bridging Anti-Carbonation Coating WB 20, RonaBond Crack-bridging Fabric should be pasted into the fresh second layer of RonaBond RonaBond Crack Bridging Anti-Carbonation Coating WB, care should be taken to eliminate bubbles and folds in the fabric.

RonaBond Crack Bridging Anti-Carbonation Coating WB can be applied using airless spray. The nozzle size shall be 625-629. Included within the spray should be a 60 mesh filter. Dilution of the coating can be made with water between 2-10%.