Protective barrier for masonary and concrete structures against ingress of carbon dioxide, chloride ions, oxygen and water.
The duracote PB is a one part high-build flexible pure acrylic with crack bridging properties. duracote PB is designed for excellent durability and waterproofing properties. It forms a durable, decorative, UV stable protective barier that inhibits the passage of water and aggressive water-borne corrosive contaminants from entering the pore structure of concrete substrate.
Uses:
duracote PB is particularly suited to reinforced concrete structures that are exposed to aggressive atmospheric conditions and attack by waterborne contaminants such as acid gases, chloride ions and carbonation. Also a protective barrier for masonry, plaster, fibreboard and wood. Ideal for new or previously painted surfaces.
Advantages
- Single pack
- No volatile solvents
- Forms a permanent protective barrier against the ingress of carbon dioxide, chloride ions, oxygen and water
- Tough, durable, weather resistant and UV stable decorative barrier suited to adverse climatic conditions
- Coating breaths, readily allowing water vapour to diffuse from concrete pore structure with excellent hiding properties
- Excellent static and dynamic crack bridging properties allowing elongation and recovery
- Improved dirt pick-up resistance and easy cleaning
- Non-yellowing and good stain resistance
- Matt finish
- Lower sensitivity to mould and algae growth.
- Excellent barrier to efflorescence
Typical Physical Properties
Download Technical Datasheets for Typical Physical Properties https://www.abe.co.za/wp-content/uploads/2026/05/duracote-PB.pdf
Surface Preparation
The substrate must be clean and dry and free of oil, grease, loose particles, and cement laitance. Old layers of curing compound, paint, and other contaminants such as moss and algae growth must be removed. The substrate must be mechanically sound. Light grit blasting generally achieves the best results. Spalled or damaged concrete should first be repaired using the durarep structural repair system (see separate datasheet). It is essential to ensure that on completion, the duracote PB surface is unbroken and free from pinholes. Surfaces that contain undesirable blowholes and surface blemishes should be filled with durarep FC cementitious fairing compound which is then allowed to cure for 48 hours. (See separate datasheet).
Bonding / Priming
Apply duracote WB primer to prepared surfaces at the rate of 2.5 m2/ℓ (per coat) using a portable knapsack-type spray unit. The surface should be flood coated until the substrate has a uniform appearance and sheen. On porous substrates if the surface remains a dull matt appearance further applications of duracote WB primer must be applied until the desired result is achieved. Leave primer to dry for at least 12 hours (@ 20°C) before the application of duracote WB commences.
Mixing
Stir contents before applying.
Coverage
duracote PB: 8 – 10 m²/ℓ (2 coats required).
Application
It is imperative to ensure that the correct application rates and overcoating times are adhered to. After the substrate has been primed with duracote PB primer and has dried out completely (min 12 hours @ 20°C), apply 2 coats of duracote PB to the primed substrate by brush, roller, or suitable spraying equipment at the rate of 2.5 m2/ℓ (total minimum).
Note: A minimum wet film thickness of 200 microns per coat must be achieved. It is essential to ensure that on completion, the duracote PB surface is unbroken and free from pinholes. The first coat should be left to dry for 8 hours.
Cleaning
Tools and equipment used for duracote PB should be cleaned immediately after use with water before duracote PB dries.
Protection on Completion
Do not commence with the application of the duracote PB if:
- Rain is imminent within 2 hours of application
- When there is a likelihood that the system will be exposed to frost within 48 hours after completion
- In windy, dusty conditions
Temperature & Relative Humidity
duracote PB must not be applied to a substrate with a temperature of less than 5 °C.
Model Specifications
High-performance, water-based, flexible acrylic coating for protecting concrete and masonry agents against ingress of acid gases, chloride ions, and moisture.
The protective coating will be duracote PB, a high-build durable, decorative, UV stable barrier protecting concrete and masonry, applied at the rate of 8 – 10 m²/ℓ in accordance with the recommendations of a.b.e.®.
The coating will be capable of bridging a 0.3 mm dynamic crack at 20 °C with excellent hiding properties and UV resistance.
Packaging
duracote PB is supplied in 20 liter drums, available in grey. This product has a shelf life of 12 months if kept in a dry cool place in the original packaging. In more extreme conditions this period might be shortened.
Health & Safety
duracote PB is non-toxic, non-flammable but must not be allowed contact with skin and eyes. Always wear gloves and eye protection when working with the material and avoid excessive inhalation and skin contact. If material is splashed into the eyes, wash with plenty of clean water, and seek medical attention.
Important Note
This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® endeavours to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot accept any liability for application – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied.
Further Information
Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total
requirements.
a.b.e.® has a wealth of technical and practical experience built up over the years in the company’s pursuit of excellence in building and construction
technology.