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alka 251alka 251

Water based Polyurethane – ALKA 251

$200.00$600.00 inc GST

SKU: DC0847 Categories: ,

Alka-251 Coating Paint


Alka-251 is a top-notch coating specifically designed for concrete surfaces. Its application is simple, and it outperforms traditional sealers, offering enhanced protection and durability. What sets it apart is its versatility; it can be applied over existing coatings, demonstrating its adaptability and superior performance compared to conventional options

Where it Could Be Used

Alka-251 is handy in different spots like factories and stores. It’s good for safeguarding floors in warehouses, places where items are packed, and areas where people work with tools. It also works well in places where food and drinks are prepared, as it can handle heavy foot traffic and items being dropped on it.


Alka-251 offers numerous advantages, from wear resistance and impact resistance to low VOC emissions. Its ability to protect new concrete from damage and resist hot tire pickup ensures durability in high-traffic areas. Additionally, its excellent weathering properties and resistance to UV radiation contribute to its longevity. Available in bulk quantities, it provides a cost-effective solution without compromising quality.

Application Instructions

Before applying, make sure to clean the substrate thoroughly and remove any contaminants like oil, grease, and surface laitance. For larger areas, use shot blasting or high-pressure water blasting, while smaller areas may require needle gunning or bush hammering. The application temperature ranges from 10°C to 30°C, with a maximum relative humidity of around 80%.

Cure Times

Alka-251 dries efficiently, taking 4-7 hours at around 25°C. You can apply the overcoat after 8-24 hours, and light traffic can use the surface after 3 days. Full curing usually takes about 7 days at the same temperature.


Alka-251 maintains its integrity for a minimum of 12 months when stored in dry conditions between 5°C and 30°C. Furthermore, Component Bis  classified as non-hazardous for transportation which ensures safe handling and storage.

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Colour accuracy disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.

Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.

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