Applying Microne Medium

Mixing Microne Medium

This is pre-mixed with the colour in the tub, all you need to do is give it a mix before you start to loosen it and make sure the colour is evenly distributed.

To do this, 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.

Apply 1st Coat Microne Medium

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 Medium

After around 3 hours, you can apply your final coat of Microne in exactly the same way as the previous coats.

Be aware that the more you trowel over the microne with a steel trowel, the more it will blacken in high spots. This technique is called “burnishing” and is often used by microcement installers to add depth to their work. You’ll find that Microne Stucco Effect burnishes more readliy than Microne Continuous Effect. This looks great in grey-scale colours but isn’t always desired in lighter or brighter colours. So if you don’t want black marks, then use Continuous and try not to trowel over the same area more than you need to.

Fresh on Fresh Technique

By applying your 2nd top coat within 20 minutes – 1 hour applying your 1st coat, you can achieve a cloudy texture. On floors, you can lay high-density foam boards over the microcement to walk on.

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.