Applying Microne Plus Medium Stucco

Mixing Microne Plus Medium Stucco

The microcement is pre-mixed and the colour has been added to the tub, so all you need to do is give it a good mix to ensure the colour is evenly distributed. Then add 500g Microne Plus to 10kg Tub of Microne & mix well with a microcement mixer. That’s a mix ratio of 1:20.

Once the Microne Plus has been added to the tub, you’ll have around 2 hours working time, so only mix it when you’re ready to use it.  And mix in batches if you have a large area.

Apply 1st Coat Microne Plus Medium Stucco

Use the same technique as you did for the base coats. Just remember this coat is thinner, so it needs to be applied thinner too.

It’s important that you go as thin as the grain with Microne Medium – which you’ll see is very thin indeed.

Here’s a reminder of the technique:

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.

Completely cover 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.

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

Apply 2nd Coat Microne Plus Medium Stucco

To get the stucco effect, you want to apply the 2^nd coat between 20 minutes – 1 hour after applying the 1^st one.  It’s important to get the timings right here to get the best results.

If you apply the 2^nd top coat too soon, it will pull off the previous coat.  If you apply it too late, you won’t get as much of a stucco effect.  So, it’s best to check it 20 minutes after you have applied the 1^st top coat & then every 10 minutes after that until it no longer drags.

It might help to section up the room so that you can take your time to finish a wall at a time before moving on.

Mix the 2^nd top coat in the same way that you mixed the first one, but this time add around 100ml water to the 10kg tub & mix.

Apply the 2^nd coat using the same random movements, but apply slightly more pressure to the trowel so that you get a nice tight coat, removing the excess as you go.

Once you’ve completed a surface, leave it to dry for 20 to 30 minutes.

With a clean, dry trowel, trowel over the surface 3 or 4 times until you start to see some blackening and the surface becomes nice & smooth.

Keep trowelling over the surface until you have the desired amount of burnishing and polish.

Naturally, some areas will darken more than others, which is what gives the tonal variation.

Leave to Dry

Once you have completed your final coat, you’ll need to leave it to dry before sanding and applying sealers.  This will take at least 12 hours.

Sand with 220/240 Grit Silicone Carbide Sanding Disc

Once the Microcement is fully dry, gently & evenly sand the surface of the microcement with a 220 or 240 grit paper to remove any rough patches and drips. It should be flat from the trowel so you shouldn’t need to sand it too much at this stage.

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

We stock a range of Microcement Sanding Discs on our website.