Introduction to micro cement render
Micro cementing has become a favourite among applicators and tradies for its ability to deliver a seamless, elegant finish across various surfaces. Whether itโs for walls, floors, wet areas, kitchen benches, or even furniture, the versatility and aesthetic appeal of micro cement render are unmatched.
Rockcote, a leading Australian-owned brand known for its commitment to quality and service, is proud to introduce its MicroStone system to help applicators achieve a consistent, natural decorative finish. In this guide, we share five practical tips for applying MicroStone to help you achieve a smooth and long lasting result.
Applying MicroStone: surface preparation and techniques
Preparing the surface for microcement application
Proper surface preparation is the foundation of any successful microcement application. A well-prepared surface ensures strong adhesion and a smooth, flawless finish.
1. Clean the Surface
Before beginning your micro cementing process, ensure the surface is completely dust-free, grease-free, and dry. Any moisture can prevent the microcement from adhering properly. Depending on the existing surface, sanding, grinding, or acid etching may be required to remove old paint, coatings, or contaminants.
For surfaces requiring regularisation, such as tiled walls or rough cement, a primer coat may be required to improve bonding. For more information on primers and additives, visit Rockcoteโs Patching, Priming, and Additives, or contact your local BDM or Customer Service team.
2. Base Preparation
Apply a base coat to establish a flat and stable surface. Use a trowel to spread the base coat evenly and allow it to dry completely. Rockcote MicroBase, fully meshed,ย is an ideal base coat for this purpose. This layer acts as the foundation for your microcement finish, ensuring proper adhesion. It is critical to follow the manufacturerโs instructions for mixing and application to achieve the best results.
Mixing and application techniques
Achieving the right consistency in your microcement mixture is crucial for a smooth and even application.
3. Mixing Microcement
When it comes to mixing your micro cement, getting the ratio right is key. Be sure to follow the manufacturerโs instructions carefully โ for Rockcote MicroStone, that means combining Part A (10L) with Part B (5L) in the correct proportions.
Youโll want to use a mechanical mixer to get a smooth, lump-free consistency. Mixing by hand might seem quicker, but it can leave you with uneven texture and clumps that affect the final finish. Once mixed, make sure to use the product within the recommended working time. This helps keep the micro cement render easy to apply and ensures you get the best possible result.
4. Application Techniques
Start by applying the first micro cement coat with a trowel or spatula, spreading it as evenly as possible. This initial layer creates the smooth base youโll build on. Allow the first coat to dry completely before applying the second coat.
The second layer is where youโll achieve the texture and colour youโre after. Use a steel trowel or finishing trowel to spread it evenly and refine the surface. If youโre working on a floor or high-traffic area, you might need to add extra coats to boost durability. Just remember โ each layer should be applied thinly and allowed to dry fully before the next.ย
Rockcoteโs MicroStone can be used to achieve various textures, so experiment with different techniques to find the best finish for your project.
Finishing Touches
The final appearance of your microcement render can be significantly enhanced with careful finishing touches.
5. Sanding and Sealing
Once the final microcement coat is dry, gently sand the surface with fine-grit sandpaper to remove imperfections and create a smooth, even finish. Clean away all dust using a vacuum or damp cloth โ the surface must be completely clean before sealing.
Apply a sealer using a short-haired roller or brush. This step protects the microcement from stains, water, and wear, while also enhancing its colour and texture. You can apply multiple coats for added protection, making sure to follow the recommended drying times between each one.
Finish with the appropriate sealer to boost water resistance and durability. Choose a glossy finish for floors or a satin finish for walls. This final layer adds both protection and visual appeal to your microcement surface.
Avoid these micro cement application mistakes
To ensure a flawless application, itโs important to be aware of common mistakes and how to avoid them.
1. Inadequate Surface Preparation: Skipping surface cleaning or base preparation can lead to poor adhesion and an uneven finish. Always ensure the surface is thoroughly prepared. Neglecting this step can result in the product peeling or cracking over time.
2. Incorrect Mixing: Inconsistent mixing can cause lumps and affect the application. Use a mechanical mixer and follow the manufacturerโs instructions precisely. Incorrect mixing can lead to variations in colour and texture, compromising the overall appearance.
3. Uneven Application: Applying microcement too thickly or unevenly can result in an inconsistent texture. Use a trowel to spread the material evenly in thin layers. Applying too much material at once can cause it to crack or not adhere properly.
4. Insufficient Drying Time: Rushing the drying process can compromise the finish. Allow each coat to dry completely before proceeding to the next step. Use a moisture meter to ensure substrate and surface recommendations are followed closely. Skipping this step can lead to a weak bond between layers, affecting the durability of the finish.
5. Neglecting Sealing and Finishing: Skipping the sealing process can leave the microcement vulnerable to damage. Always apply the recommended finishing sealers. Proper sealing protects the surface from stains, water damage, and wear, ensuring the longevity of the finish.
FAQs about MicroStone
Can MicroStone be applied to both walls and floors?
Yes, MicroStone is versatile enough for use on walls, floors, wet areas, kitchen benches, and furniture. For more details, please contact your local BDM or Customer Service team.
Is MicroStone easy to maintain?
Yes, it is low-maintenance, requiring only water, neutral soap, and a cloth for cleaning, making it an excellent choice for high-traffic areas.
Is MicroStone suitable for commercial flooring applications?
Yes, please seek advice from your local BDM to understand the slip rating requirements.
Is MicroStone prone to cracking?
No, MicroStone is durable and resists cracking when applied and maintained correctly, ensuring a long-lasting, smooth finish.
Does MicroStone remain flexible under temperature changes?
Yes, thanks to its polymer mix, MicroStone remains flexible and does not crack with temperature fluctuations.
How does the top sealer impact the colour of MicroStone?
The type of sealer and finish applied can influence the colour of MicroStone, potentially altering the final appearance, a site sample is a good way to confirm the final outcome and colour.ย
Can MicroStone be used in walk-in showers?
Yes, MicroStone is ideal for wet areas, providing a seamless finish. However, it is crucial to wait seven to ten days after the final sealer application before using the shower.
How long does MicroStone typically last?
With proper care and maintenance, MicroStone is exceptionally durable and can last for many years to come.
Which primer should be used on ceramic tiles?
MicroBase is designed explicitly for coating challenging and low-suction surfaces like ceramic tiles, negating the need for material removal.
When is mesh necessary with MicroStone?
To enhance durability, mesh is recommended to be incorporated into Rockcoteโs MicroBase in all applications.
What colour options are available for MicroStone?
Rockcote Microstone can be tinted to the range of colours offered. Liquid tints and Oxides can be used to achieve a variety of colours.
Will MicroStone’s final finish vary with different applicators?
MicroStone is designed to allow for various finished styles. Skilled applicators can achieve specific styles, though subtle differences unique to each space may occur. Typical finishes will be smooth, exposed stone or textured.
Is MicroStone suitable for outdoor use?
Yes, when sealed with polyurethane or hydrophobic sealers, MicroStone is highly durable and can withstand outdoor conditions.
Rockcoteโs MicroStone makes it easy to achieve a seamless, high-quality microcement finish across any surface. For more information, visit the Rockcote MicroStone page or contact your local BDM or Customer Service team.