Preparation FAQs

How to seal render before painting

Before you render it’s important to seal the surface before painting. Haymes Rendertex Renderprime is a primer and sealer that’s been specially formulated to penetrate and seal surfaces. This 100% acrylic pigmented sealer is quick drying, provides superb coverage and has excellent water resistance. Its superior adhesive qualities ensure consistent surface porosity and maximum adhesion. If you’re rendering tilt-up and precast concrete panels, Haymes Rendertex Masonry Sealer has superior adhesive qualities while penetrating and binding concrete surfaces.

How to prepare a painted wall for rendering

As with all painting projects, for the best results you must prepare the surfaces you want to render. Haymes Rendertex Render Patch is a 100% acrylic pre-mixed filling compound suitable for exterior surfaces. 

With superior adhesion and fast application properties, Render Patch can patch imperfections, joints and holes in masonry and concrete walls or cement sheeting. Haymes Rendertex Tilt Panel Prep is a water-based, non-caustic biodegradable cleaning solution that’s been formulated to remove mould release agents, bond breakers and other contaminants. It also ensures topcoats have excellent adhesion.

To seal the painted wall before rendering, use Haymes Rendertex Renderprime a water based 100% acrylic pigmented sealer and primer that seals and penetrates the painted wall surface. By using this product, the surface porosity will be consistent and your top coats will have maximum adhesion properties. 

How to prepare render for painting

Wearing a breathing mask, gloves and close-fitting eye protection, use a stiff bristle brush on the surface to remove any loose and flaking paint, masonry or dirt. If the surface is particularly dirty, you may need to wash it down with Haymes Rendertex Tilt Panel Prep. Once dry, tape up any areas you don’t want render to adhere to.

If the surface has small cracks or damage, use Haymes Rendertex Render Patch. This 100% acrylic paste has been specifically formulated to patch imperfections, cracks and holes. Once dry, the surface needs to be sealed and primed. Apply quick drying Haymes Rendertex Renderprime. This will ensure the top coats have excellent adhesion and will be water resistant. 


Application FAQs

How to apply acrylic render

Before you apply acrylic render, you’ll need to apply a base coat. Haymes render base coats are quick drying and have been specially formulated to provide excellent water resistance and durability and superior vapour permeability. Our range includes:

Our acrylic render can be applied either with a trowel or with a roller. Haymes range of trowel on acrylic render is suitable for indoor and outdoor use. A durable marble-based render, Rendertex Eureka Marble provides an attractive textural finish. A highly durable special effects texture, Rendertex Sovereign Quartz provides a subtle sparkly effect. A sand-based, highly durable acrylic render, Rendertex Riverina Sand provides an attractive textural finish.

Haymes Rendertex Roll On Texture is an easy to use 100% acrylic, textured pigment render suitable for interior and exterior surfaces. Available in a varying finishes and profiles, this roll on render is resistant to mould and fungal growth and weather extremes.

How to apply render

Render can be applied to surfaces either with a trowel or a roller. When using a trowel, use your steel float to apply the first layer onto the wall. Keep applying the render until the desired thickness has been reached. Next, use a straight edge metal leveller in a sawing motion to screed off any excess render. With a steel float, gently trowel until the surface is smooth. Allow this coat of render to completely dry before applying another render layer.

When applying render with a roller, make sure you use a full cover texture roller which will hold and spread the render. Using steady and smooth actions apply the render in vertical strips from the ground up. A plastic float held by a partner can be used as a leading edge while you’re rolling. As you move across the wall, make sure you keep a wet edge. It’s also important to ensure the render is applied to deep grooves, low spots or uneven sections of the wall. 

How to apply render to a brick wall

After you’ve prepared the brick wall with Haymes render preparation products, you’ll need to mask any areas that need protecting including adjoining walls, floors and light fittings. Apply one coat of Haymes Render Base Coat with a trowel and allow to dry for 3-4 hours before you apply the second coat. If you’re using a trowel to apply render to the brick wall, use Haymes Rendertex trowel on render. If you’re using a roller to apply render to the brick wall, use Haymes Rendertex Roll On Texture. To protect the brick wall after you’ve applied render, apply a coat of Haymes Rendertex Rendershield Membrane.

How to apply render to a wall

Prepare the wall you want to render Haymes render preparation products. When applying render to a wall, you can use either a roller or trowel. If you’re using a trowel to apply render, it’s helpful to use a steel float to ensure the render thickness is even. Using a sawing motion, screed any excess render with a straight edge metal leveller. Before allowing it to dry, gently trowel the render until it’s smooth. 

To apply render to a wall with a roller, you’ll need a full cover texture roller. With smooth and steady actions, apply the render in vertical strips from the ground up. Use a plastic float as your leading edge. It’s important to keep a wet edge as you move across the wall. As you render the wall with a roller, make sure the render is applied to low spots, low or uneven sections and deep grooves.