Hardwall Plaster 25kg
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Product Details
This quick-setting base coat, sometimes called Browning plaster, excels on high-suction backgrounds like brickwork or blockwork. Applied at about 11mm thickness, it provides a stable undercoat for final plaster layers while resisting rapid moisture loss that can crack finishing plasters
As of May 2026, PriceNailer data confirms that the cheapest price for Hardwall Plaster 25kg is £15.60 from Wickes across 6 suppliers. Prices have increased by 17.9% over the last 28 months.
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Frequently Asked Questions
What is the coverage rate for 25kg Hardwall plaster?
A 25kg bag of Hardwall plaster typically covers approximately 2-2.5 square metres at the recommended 11mm thickness. Coverage may vary slightly depending on the substrate condition and application technique.
What's the difference between Hardwall plaster and Browning plaster?
Hardwall plaster and Browning plaster are essentially the same material - both are gypsum-based undercoat plasters. Hardwall is the modern term, while Browning refers to the traditional name due to its brown colour.
Can I apply Hardwall plaster directly onto brick walls?
Yes, Hardwall plaster is specifically designed for high-suction backgrounds like brickwork and blockwork. Its formulation prevents rapid moisture loss, making it ideal for direct application onto masonry surfaces.
How long does Hardwall plaster take to set?
Hardwall plaster typically begins to set within 90-120 minutes after mixing, depending on temperature and humidity. It's fully cured and ready for the finishing coat after 24 hours.
What tools do I need to apply Hardwall plaster?
You'll need a hawk, float, trowel, mixing bucket, and a drill with paddle mixer. A spray bottle for misting and a straight edge for levelling are also recommended for professional results.