Applying the 2nd Coat of Microne Base Plus

Mixing 2nd Coat of Microne Plus Base

If you chose the “Microne Plus Base” option when you ordered, you will have 1 bottle of Microne Plus Comp B for every tub of Microne Plus Base.  Adding 1 x Microne Plus Comp B to each of the tubs, will make the surface stronger, more resistant to heat and more stain resistant.

Add 500g Microne Plus Comp B to 10kg Tub of Microne & mix well with a microcement mixer. That’s a mix ratio of 1:20.

Once mixed, you’ll have 2 hour working time, so only mix what you need and make sure you’re ready to apply it straight away.

Add 1 x Hint of Colour for Microne Base to the tub and mix thoroughly.  You can add a small amount of water to the bottle and shake thoroughly to get all of the toner out of the bottle.

Unlike the Top Coats, the colour for Microne Base is not an accurate match to the swatch, it’s just enough to take it in the right direction before Top Coats are applied.

To loosen the mix, mix thoroughly with a microcement mixer head attachment on a cordless drill.  If it still feels stiff, you can add up to 10% water to loosen & mix further.  That’s a maximum of 1l per 10kg.

Let the mixture rest for a few minutes before applying.

Applying the Microne Plus Base

Apply the 2nd Coat of Microne Plus Base in exactly the same way as the 1st coat. You can apply the microcement directly onto the previous coat, there’s no need to prime in between them.

Using a Microcement Trowel, work your way out from one corner creating a random edge pattern. Keep trowel movements small and random, avoid long sweeping arches – as these will show through to your final finish.

Use the grain in the microcement as your level – if you apply the microcement thicker than the size of the grain, the finish won’t be as strong and will require a lot more sanding. Run the trowel back over each section that you have put down to smooth it out and remove excess product. You should still be able to see the mesh after applying this coat.

Completely coat each surface without stopping. For complete rooms, start with ceilings, then walls from left to right (or right to left) and then the floor.

Run your finger or a corner trowel along internal corners to push the microcement into the corner and then gently trowel away the excess product.

On external corners, let the excess fall over the corner, then with your trowel flat against the surface, trowel away from the corner.

Leave to Dry

This should take around 3 hours but may vary depending on temperature and humidity.

Sand with 40 or 80 Grit Sand Paper

Once the Base Coats are dry and before you apply your Top Coats, you need to make sure the Base Coats are completely flat.  Use a strong sandpaper, like Silicone Carbide, to prevent colour from the disc transferring to your work.

Flatten the Microne Plus Base with a 40 or 80 grit sandpaper. An orbital sander is ideal, but, for smaller areas, you can do it by hand, and for large floors, you can use a floor sander.

Use the sandpaper to remove ridges and drips that have dried in the microcement, tidy edges.  Take particular care around open edges, like shower wastes to ensure you have a clean, tidy edge.

The Top Coats are very thin so any ridges or imperfections in the base coats will be visible in the Top Coats.  Take your time to get it completely flat before moving on to the next step.

Vacuum the surface to remove all dust and debris. Do not wet the microcement.

Microcement Sanding Discs are available from Relentless Microcement.