Tikkurila Muuri is a heat-resistant breathable paint recommended for use on firewalls, fireplaces and similar interior wall surfaces where the surface temperature may rise above normal.

An inorganic silicate paint for interior use with excellent heat-resistance, Tikkurila Muuri is suitable for use on concrete, lime, lime cement, cement plaster, sandlime brick and brick surfaces as well as mineral board surfaces indoors.

It is also suitable for surfaces previously painted with lime, lime cement, cement and silicate paints.

For more information regarding painting around fireplaces please see our helpful blog post here.

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• Features & Benefits
• Technical Data
• Application Conditions
• Surface Preparation
• Application Instructions
• Cleaning Of Tools
• Maintenance Instructions & Treatment
• Health & Safety

Features & Benefits

• Inorganic silicate paint for interior use with excellent heat-resistance
• Ideal for fireplaces, firewalls, and similar interior wall surfaces exposed to higher-than-normal temperatures
• Available in white or tinted to 8 popular colours
• Resistant to dry heat up to 300℃ (white, untinted only) or 180℃ (tinted colours)
• Breathable
• Does not require a separate primer
• Suitable for use on concrete, lime, lime cement, cement plaster, sandlime brick and brick surfaces as well as mineral board surfaces indoors

Technical Data

Application Conditions

• The surface to be painted must be clean, dry and sound and the temperature of the air/surface should be a minimum of +10°C with a relative humidity of below 80%

Surface Preparation

Unpainted Surfaces:

• New concrete, screed and plastered surface must be sufficiently dried and hardened
• Ensure surfaces are clear of dirt, dust and other impurities

Previously Painted Surfaces:

• If necessary, clean with Tikkurila Seinäpesu Cleaning agent according to instructions
• Remove flaking and poorly adhered or powdery paint layers

Application Instructions

Patching:

• Patch cracks, holes and dents so that they are level with the surrounding surface
• Use an appropriate dry filler on concrete surfaces and lime plaster or lime cement plaster on plaster surfaces
• If necessary, patch paint smoothed areas with Muuri Fireplace paint

Painting:

• Apply one priming coat of Muuri Fireplace paint
• The product can be thinned with water up to 10%, if necessary
• After the primer coat has set for at least 12 hours, finishing coat should be applied

Application Notes:

• Cover surfaces that are not to be treated, such as windows, natural stone or clinker-tiled surfaces and metal surfaces
• Remove any paint spatter immediately with water
• The variable porous structure of the surface to be painted and moisture and temperature variations during paint application and drying may cause diversity of colour
• It is recommended to wait for at least two weeks before the treated surfaces are put into use to ensure the product reaches the heat durability requirements
• Mechanical strain may cause visible marks on the painted surface. This is a typical product feature of matt paints; however, it does not affect the functionality of the product

Cleaning Of Tools

• Clean tools with water
• Tikkurila Pensselipesu Tool Cleaner is recommended to remove slightly hardened paint

Maintenance Instructions & Treatment

• If necessary, clean the surfaces with a dry brush, mop or dust cloth after a minimum of one month after coating
• Surfaces painted with Muuri can be overcoated with itself as a maintenance coat

Health & Safety

• Destroy liquid waste according to the local regulations for hazardous waste
• Recycle empty, dry cans or dispose of them in accordance with local regulations
• Please see the Product and Safety Data sheets in the Data Sheets Tab above for detailed Health & Safety information