British Gypsum Thistle Hardwall 25Kg

In stock
£8.30 Ex VAT
£0.33 Per KG

Thistle Hardwall is an undercoat plaster suitable for most masonry surfaces offering a durable undercaot plaster with a high impact resistance and quick drying time.

401 In Stock
West Hampstead
240 in stock
Park Royal
302 in stock
Staples Corner
164 in stock
New Southgate
381 in stock

Product Information

Thistle Hardwall is a gypsum undercoat plaster for use on most masonry. With a final coat of Thistle Multi-finish, it provides a smooth, inert, high quality surface to internal walls. The combination has superior impact resistance to efflorescence, and gives a durable base for application of decorative finishes. Thistle Hardwall is a lightweight, retarded hemihydrate, pre-mixed gypsum plaster, incorporating special aggregates and additives, requiring only the additional of clean water to prepare it for use. It is suitable for application by hand or by plaster projection machine.

Key Features

  • Undercoat plaster with high impact resistance
  • Suitable for most masonry backgrounds
  • Quicker drying time

Thistle Hardwall should be applied with firm pressure, built out to the required thickness, ruled to an even surface and lightly scratched to form a key for thistle multi-finish. For machine application, the plaster should be sprayed on to the background in the form of a ribbon. The consistency should allow the ribbon to run together. When a substantial area is covered, Hardwall is worked and ruled as in hand plastering. It is easier to attain the required thickness of plaster in one application by machine, but the total thickness should normally exceed 25mm (subject to background suitability)

SpecificationA 25kg bag of Thistle Hardwall will cover 3.0 m2 at 11mm thickness and approximately 1.5 - 2 hours setting time. Hardwall complies with EN 13279-1 types B4/20/2 and C3/20, and is manufactured under a quality system independently audited and certified as conforming with ISO 9001: 2000

Thistle Bonding Coat is pre-mixed with aggregate and only clean water needs to be added to prepare it for use. Mixing should be carried out in clean bucket or bath. Excessive mechanical mixing should be avoided. Tools and water used in mixing must be clean. Contaminations from previous mixes can shorten the setting time in turn reduce the strength of plaster when set.

Product Specifications

Technical Specification
Brand: British Gypsum
Pack Size: 1
Size: 25Kg

  • Lead time of 1-2 Working Days.
  • This product is dispatched from Builder Depot and is available for in-store purchase.
  • Orders received by 12:00pm are processed the same working day.
  • Your delivery charge will be displayed in the trolley page and checkout prior to purchase.
  • Once the order has been dispatched you will be sent relevant tracking information.
  • This item is eligible for returns as per our Returns Policy.
  • The products ordered are for kerbside delivery only which means our drivers will unload goods at the nearest access point on the kerb outside of your property.
  • Please ensure you have adequate labour onsite to accept the goods and offload.

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4.6 /5

Based on 7 customer(s) reviews

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Firozeh F.   published 26/01/2019 following an order made on 21/01/2019



Anonymous customer   published 13/10/2018 following an order made on 07/10/2018


Good backing plaster

Anonymous customer   published 26/06/2018 following an order made on 13/06/2018



Anonymous customer   published 06/05/2018 following an order made on 30/04/2018



Anonymous customer   published 27/02/2018 following an order made on 15/02/2018


ok well

Anonymous customer   published 25/11/2017 following an order made on 17/11/2017



Anonymous customer   published 20/08/2017 following an order made on 14/08/2017