Order Helpline 01752 692 760

Thistle Hardwall Gypsum Undercoat Plaster - 25kg Bag

Product Code:
Est. Delivery: TBC
Shipping costs displayed in basket.

This item is out of stock and not available to purchase.

We can let you know when this product is back in stock.

This product is proving to be very popular and has unfortunately sold out.

Enter your email below and we'll notify you as soon as this product is back in stock:

Subject to stock availability, if products on a 24 hours service are ordered alongside products NOT on a 24 hours service, this may delay your whole order.

£10.68 Incl. VAT
Oops! Please select from the options


Thistle Hardwall Gypsum Undercoat Plaster is a pre-mixed gypsum plaster that can be used on most masonary. When used with a final coat of Thistle Multi-Finish, it provides a smooth, inert, high quality surface to internal walls. Suitable for application by hand or by plaster projection machine.

This combination ensures superior impact resistance, earlier surface drying, a higher than normal resistance to efflorescence, and gives a durable base for the application of decorative finishes. Thistle Hardwall is a lightweight, retarded hemihydrate, incorporating special aggregates and additives, requiring only the addition of clean water to prepare it for use.

Coverage per bag: 3m sq at 11mm thickness (when applied by hand)
Settling time: 1.5 to 2 hours
Water requirement (litres): 15.0 per bag

Fire resistant - Due to its unique properties, gypsum plasters provide good fire protection.
Effect of temperature - Thistle Hardwall may be used under frosty conditions provided that, once after application, the surfaces are protected against freezing temperatures.
Acoustic performance - Thistle Hardwall may be used within the Robust Detail constructions E-WM-1, dense aggregate block cavity separating wall, and E-WM-2 lightweight aggregate block cavity separating wall.

Please note, Thistle Hardwall should be protected from continous exposure to moisture.

There are no product specifications to show.

Questions & Answers

There are currently no questions for this product.


There are currently no reviews for this product

Products We Recommend


Product Enquiry Form

Thistle Hardwall Gypsum Undercoat Plaster - 25kg Bag

*Required Field

Would you like to empty your basket?

Yes No


It seems you are running an older version of Internet Explorer. Our site does not support these old browsers as they do not house the technology that allows our site to be safe and secure.

If you wish to access our site please either upgrade your browser or download an alternative.