THISTLE HARDWALL 25KG

Thistle HardWall 25kg is a high-performance gypsum undercoat plaster designed to provide a strong, impact-resistant base on internal masonry walls. Manufactured by British Gypsum, Thistle HardWall plaster is formulated for use on medium to high suction backgrounds, making it ideal for new-build construction and high-traffic internal areas.

Designed to be finished with a skim coat such as Thistle Multi-Finish, Thistle HardWall delivers excellent strength, durability, and key for finishing plasters. Supplied in a 25kg bag, it offers good workability, controlled setting characteristics, and reliable performance on site, making it a trusted choice for professional plasterers and builders.

Key Features

• Thistle HardWall 25kg gypsum undercoat plaster

• Strong, impact-resistant base coat

• Suitable for medium and high suction backgrounds

• Excellent key for finishing plasters

• Durable and hard-wearing once set

• Consistent workability and reliable setting time

• Manufactured by British Gypsum

Typical Applications

• Undercoat plaster for internal masonry walls

• New-build housing and developments

• High-traffic residential and commercial areas

• Medium and high suction backgrounds such as blockwork

• Base coat prior to skimming with finishing plaster

Performance & Workability

• Provides a robust and durable undercoat

• Creates an excellent bonding surface for skim plasters

• Good build-up and levelling properties

• Controlled setting time for efficient application

• Compatible with British Gypsum plaster systems

Technical Specification

• Product Type: Gypsum Undercoat / Base Coat Plaster

• Manufacturer: British Gypsum

• Product Name: Thistle HardWall

• Bag Size: 25kg

• Application: Internal Walls

• Backgrounds: Medium to High Suction Surfaces

Why Choose Thistle HardWall 25kg?

Thistle HardWall 25kg plaster offers a strong, dependable base for internal plastering projects where durability matters. Its impact-resistant properties, excellent adhesion, and compatibility with Thistle finishing plasters make it an ideal undercoat solution for professional plasterers seeking consistent, high-quality results backed by British Gypsum’s trusted manufacturing standards.