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.
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
TECHNICAL DATA
Gloss
Full matt. 6/RT-classification
Coverage
3-5m²/l for one layer
Coverage is affected by the roughness and porosity of the surface as well as the application method and conditions
Pack Sizes
0.9l, 2.7l
Application method
Paint brush, brush T4 or lime paint chipper or brush
Drying time (23°C and 50% R/H)
Re-coatable after 12 hours
Density (kg/l)
Approx. 1.4 kg/l, ISO 2811
Water vapour resistance (EN ISO 7783)
Sd, H²O < 0,14 m
Heat resistance
Tinted product 180°C and untinted product (White) 300°C dry heat
Storage
Protect from frost and direct sunlight
Close can carefully for next use
Incorrectly closed cans and/or tinted products do not withstand long storage
Tinted products should be used during the same painting season
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
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
The marble fire surround must be clean, dry, sound, prepared as detailed in the technical data sheet, with any surfaces to be painted a minimum of 10cm away from the heat source and not subject to direct flame contact.
This performs upto temperatures of 300°C and is available in many colours in a range of stone finishes.
Clare on 2023-01-12 19:52:26
Question:
I'd like to paint the old discoloured terracotta tiles in fireplace hearth before a wood burner is installed. Is this paint suitable? Do you do colour swatches? is the M497 grey its hard to tell
Answer from Rawlins’ Technical Team:
Unfortunately no, this is not suitable for application to terracotta tiles.
Assuming the tiles are not exposed to direct flame contact, they are ceramic tiles, they are clean, dry, sound and prepared as detailed in the technical data sheet we can recommend Stonelux Primer & Undercoat followed by Stonelux Fireplace Paint.
Am I able to thicken this paint with any additives or fillers? I want to paint a rough brick wall behind my stove.
Answer from Rawlins’ Technical Team:
No, this product cannot be thickened, but it can be thinned upto 10% with clean water.
Ailsa on 2022-12-02 14:47:57
Question:
Hi there Is this Muuri paint suitable for a tile fireplace surround? Thanks
Answer from Rawlins’ Technical Team:
Unfortunately no this product can be applied to concrete, lime, lime cement, cement plaster, sandlime brick and brick surfaces as well as mineral board surfaces indoors.
Assuming the tiles are not exposed to direct flame contact, they are ceramic tiles, they are clean, dry, sound and prepared as detailed in the technical data sheet we can recommend Stonelux Primer & Undercoat followed by Stonelux Fireplace Paint.
Please note surfaces painted with Stonelux Fireplace Paint must be a minimum of 100mm (10cm) away from any heat source.
Steve on 2022-11-30 02:42:54
Question:
Hi- I’m looking to purchase a high heat white paint for my concrete fireplace hearth. What do you recommend? Thanks.
Answer from Rawlins’ Technical Team:
Assuming the concrete hearth is not exposed to direct flame contact, it is clean, dry, sound and prepared as detailed in the technical data sheet Tikkurila Muuri can be used.
In white this can withstand 300°C and 180°C for the tinted colours.
Sarah Herchak on 2022-10-23 12:31:55
Question:
I have already started using this paint on a resin fireplace surround. Why isn’t it suitable? What paint would you recommend for this please?
Answer from Rawlins’ Technical Team:
Unfortunately resin is not a compatible substrate for this product.
This product can withstand temperatures of upto 300°C but it does not isolate the substrate it is applied to from those temperatures.
Surfaces painted with Stonelux Fireplace Paint must be a minimum of 100mm (10cm) away from any heat source.
This paint can withstand upto 300°C.
georgina on 2022-10-20 10:55:37
Question:
I have a precast concrete fireplace that I want to paint. Is this product ok and will I need to prime first and put a sealant on top? Thank you
Answer from Rawlins’ Technical Team:
Assuming the fire board is a mineral board, it is clean, dry, sound and prepared as detailed in the technical data sheet Tikkurila Muuri would be suitable for this application.
Please note that this paint in white can withstand 300°C and the tinted colours upto 180°C.
Sophie on 2022-10-19 11:26:47
Question:
I am looking for a product to paint the fire board in the recess around a wood burner. The burner fits quite snugly in the recess. Can you recommend a paint?
Answer from Rawlins’ Technical Team:
Assuming the fire board is a mineral board, it is clean, dry, sound and prepared as detailed in the technical data sheet Tikkurila Muuri would be suitable for this application.
Please note that this paint in white can withstand 300°C and the tinted colours upto 180°C.
samantha on 2022-10-18 19:48:22
Question:
How many coats does this require?
Answer from Rawlins’ Technical Team:
Two coats are required, the product can be thinned upto 10% with clean water if required.
The second coat should be applied after a minimum of 12 hours.
Josh on 2022-10-09 15:50:23
Question:
Hi, can I use this paint in an open fireplace? It will be in direct contact with the flames? Many thanks
Answer from Rawlins’ Technical Team:
Unfortunately no, we do not have a product to recommend for direct flame contact.
ian barrowclough on 2022-10-04 11:50:01
Question:
is this suitable for a resin fireplace?
Answer from Rawlins’ Technical Team:
Unfortunately no, this is for application to concrete, cement, brick or other mineral board surfaces.
Debs on 2022-07-29 15:13:24
Question:
Is this suitable aint to use on the walls that have been roughly rendered in a fireplace that will have a woodburner installed.
Answer from Rawlins’ Technical Team:
Assuming the rendered walls, are clean ,dry, sound and prepared as detailed in the technical data sheet this can be used on areas not exposed to temperatures over 300°C if white or 180°C if a colour is used.
Steve on 2022-07-26 20:05:28
Question:
I am refurbishing a 90 year old fireplace opening and chimney breast. The opening will house a typical stove with >100mm clearance. My current plan is to clean the brick and paint with a suitable fireplace paint, There are a few areas when the bricks (hard clay) are heavily contaminated with soot. With considerable effort, the baked-on soot can be removed from the brick surface. However, even when very thoroughly cleaned, it is clear smoke contaminants have soaked into the brick. I am unsure whether this contamination could cause staining of a painted finish over time or adhesion issues during application. I assume my situation is not unique. Is there relevant guidance for either TIKKURILA MUURI or STONELUX paints?
Answer from Rawlins’ Technical Team:
Soot can be very difficult to clean in Tikkkurila's experience and whilst an alkaline cleaning agent such as Tikkurila Maalipesu Cleaning Agent may help it will all depend on how contaminated the surfaces are and what type of fuels/combination of fuels have been burnt over the last 90 years or so.
You have correctly pointed out that any remaining soot could cause issues for the paint system and possibly discolouration/bleed through, but until the work is done it will be difficult to know what effect, if any the remaining contamination will have.
I guess the only advice is to clean the surfaces as best as possible and then paint a small trial area, leave for a sensible period to establish if there is any noticeable problem with adhesion, discolouration, or bleeding.
The alternative is to just clean and leave the surface un-treated/natural.
Antony Davies on 2022-06-14 13:05:06
Question:
HI, is this product suitable for painting direct onto fireboard that is what makes up the bay that my log burner is set into? Thank you.
Answer from Rawlins’ Technical Team:
This is suitable for use on concrete, lime, lime cement, cement plaster, sandlime brick and brick surfaces as well as mineral board surfaces.
The product can be thinned upto 10% with clean water if necessary.
After the primer coat has set for at least 12 hours, finishing coat should be applied.
Louise on 2022-04-27 20:22:02
Question:
Hi, is this suitable for the wooden part of the fire surround rather than the walls? Thanks
Answer from Rawlins’ Technical Team:
Unfortunately no this is not suitable for application to wood.
This is available in a range of colours in various stone finishes.
Surfaces painted with Stonelux Fireplace Paint must be a minimum of 100mm (10cm) away from any heat source.
maureen croft on 2022-03-15 19:21:14
Question:
Hi, i need a paint that is fire and heat resistant for my small marble hearth in a grey...Which one would you recommend? Thank you
Answer from Rawlins’ Technical Team:
Unfortunately this is not suitable for application to marble.
Assuming the marble hearth to be painted is clean, dry, sound and prepared as detailed in the technical data sheet and is 10cm away from any heat source, not exposed to temperatures over 300°C we can recommend Stonelux Fireplace Paint.
This is available in a range of colours and finishes.
Tikkurila Muuri is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
General Painting Application Kit from Rawlins Paints provides the basics for any painting project. Whether it is a one off job, or you just want to make sure the right application tools get to site.
Provides an economical way of making sure you will have what you need
Ideal for interior and exterior paint projects
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Emma on 2023-02-08 07:35:16