I absolutely love it, easy to apply , keeps a wet edge for just long enough, and remains super flexible. Not had any rain yet since applying but feel confident after doing some tests in water. I will be using this again.

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Brand: Wethertex
Wethertex HBS Flex-Coat Hi-Build Coating - Premium Masonry Paint Delivers long-lasting protection and a stunning finish. Developed with cutting-edge Optilife silicone technology, this paint offers superior breathability and waterproofing, ensuring your building remains in pristine condition for up to 20 years. Application Before applying, ensure all surfaces are clean, dry, and free from algae, lichen, and other growths. Any structural defects or cracks should be repaired to guarantee a smooth finish. For optimal performance, prime the substrate with Wethertex ST1 Quick Dry Stabilising Primer. Apply the paint using a hawk and trowel for a 1-2mm thick coat, then texture with a High Build application roller or suitable tools. For spray application, follow the recommended setup to achieve a uniform texture. Benefits Outstanding flexibility allows it to cover small cracks and uneven surfaces effortlessly Highly breathable and waterproof, protecting buildings from weather damage Long-lasting protection, reducing maintenance costs over time Simple application with various tools including rollers, trowels, and spray guns Restrictions and Limitations Do not apply if frost or heavy rain is forecast, or if relative humidity is above 85%. Avoid application at temperatures below 5°C or above 25°C. Ensure the substrate temperature is between 1°C and 30°C. This product is not suitable for use on hot surfaces above 30°C. Always store and transport the product in a secure, upright position to prevent spillage. Recommended Products For best results, use Wethertex ST1 Quick Dry Stabilising Primer before applying HBS Flex-Coat. Consider Wethertex GP Primer for additional substrate preparation. Always refer to the downloadable data sheet for more detailed application guidelines and product compatibility. Health and Safety Wethertex HBS Flex-Coat Hi-Build Coating contains a mixture of 5-chloro-2-methyl-2h-isothiazol-3-one and 2-methyl-2h-isothiazol-3-one, which may produce an allergic reaction. Use appropriate personal protective equipment when handling this product. In case of skin contact, wash immediately with soap and water. For eye contact, rinse with water for 15 minutes. Do not ingest or inhale. Refer to the safety data sheet for detailed health and safety information.
All reviews
Delivery: 5
Ease of purchase: 5
Product meets description: 5
Quality: 5
Value for money: 5
This is a great product which is helping to stabilise my house render. I’m building it in layers on hair line cracks to prevent water ingress. It’s like a textured slurry , very pleased so far.
Delivery: 5
Ease of purchase: 5
Product meets description: 5
Quality: 5
Value for money: 4
Great product
Delivery: 5
Ease of purchase: 5
Product meets description: 5
Quality: 5
Value for money: 5
Order with ease. Packaged very well Excellent delivery and great product.
Delivery: 5
Ease of purchase: 5
Product meets description: 5
Quality: 5
Value for money: 5
Rubbish, does the opposite of what it says on the tin.
Delivery: 5
Ease of purchase: 5
Product meets description: 1
Quality: 1
Value for money: 1

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