Plasters

What Is Plaster and Where It’s Used

Plaster is a dry building material that, when mixed with water, forms a workable paste that hardens as it dries. It is applied to internal walls and ceilings to create flat, even surfaces ready for decoration. Plaster can also be used to even out irregular masonry, provide a durable undercoat or act as a finishing surface. The right type of plaster depends on the surface, installation method and desired finish.

Trade and DIY Plasters for Different Applications

Trade and DIY plaster products are designed for distinct roles in a plastering sequence. Some plasters act as base coats, providing strong adhesion to brick, block or concrete substrates, while others offer a finer texture for finishing and preparing surfaces ahead of paint or wallpaper. The products in this collection support common plastering workflows used across internal building projects.

Hardwall Plaster for Strong Undercoat

Hardwall plaster is a robust undercoat plaster ideal for initial application on masonry and blockwork surfaces. It forms a firm, stable base for subsequent finishing coats and is suited to areas where a stronger substrate is desirable before applying a fine finish.

Bonding Coat Plaster for Reliable Adhesion

Bonding plaster is formulated to stick well to absorbent and non-absorbent surfaces, making it suitable for preparing walls and ceilings before further finishing. Its good adhesive properties ensure that subsequent layers bond evenly, reducing the risk of delamination or failure.

Multi-Finish Plaster for Smooth Surfaces

Multi-finish plaster combines base and finishing qualities in one product, allowing for efficient plastering with a smoother texture. It is popular for covering walls and ceilings when a single-product application is preferred and delivers a paint-ready surface once dry.

Choosing the Right Plaster for Your Project

Selecting the right plaster depends on the surface and application. For new masonry or blockwork that requires a solid undercoat, a harder base product will support the finish and reduce cracking. For projects where a sleek, smooth surface is the priority, a multi-finish plaster can save time and provide excellent results in one coat. Understanding the substrate and desired outcome ensures a successful plastering job and a high-quality finish.

Benefits of Using Quality Plaster

Plaster enhances wall and ceiling surfaces by creating a uniform, durable substrate that accepts decoration more effectively. It helps seal irregularities in masonry, improves surface hardness and contributes to better overall aesthetics once painted or papered. Using trade-standard plasters alike for base coats and finishing stages supports long-lasting results.

Frequently Asked Questions

What plaster should I use for new blockwork or brick walls?

For new walls constructed from blockwork or brick, a stronger undercoat plaster such as a hardwall plaster provides a firm base for further finishing plaster if required.

Can one plaster be used for both base and finish coats?

Some multi-finish plasters are formulated to act as both base and finish products, offering time savings and a smoother result when a single application is sufficient.

How long does plaster take to dry?

Drying time varies with plaster type, ambient conditions and thickness applied. Ensure the plaster is fully dry before decorating, as premature painting can compromise adhesion.

What surface preparation is needed before plastering?

Surfaces should be stable, free of dust, oil or loose material. Very absorbent substrates can be pre-dampened to prevent overly rapid drying of the plaster and ensure good adhesion.