Applying MicroDur Medium with Glass Crystals
Follow the directions below to apply the MicroDur Medium with Glass Crystals.
The standard consumption for MicroDur Medium with Crystals is 10kg for 10m2, one coat. Expected drying time for MicroDur Medium is 3 hour and there is no limit on how long you can leave it between coats. The pot life of MicroDur is 1-3 hours, so it’s best to mix it in batches.
Mix 10kg MicroDur Medium with 2.5-3l Water.
You will need a microcement mixer and a flexible trowel.
Mixing the 1st Coat MicroDur Medium with Glass Crystals
You will need 10kg of MicroDur Medium with Crystals to complete 1 coats over 10m2.
To mix 1 x 10kg batch, measure 2.5l – 3.0l Water using a measuring jug.
Pour the Water into your mixing bucket, and mix in the Colour for 10kg MicroDur Medium.
Use the Water to rinse out all of the colour from the bottle.
Add 10kg MicroDur and mix thoroughly.
Then add 1kg Glass Crystals to 10kg MicroDur Medium & mix gently on a slow speed. Take care not to mix too aggressively as this could cause the Crystals to break down.
Applying the 1st Coat MicroDur Medium with Crystals
Use a Microcement Trowel and hold hold it quite flat to the surface. Don’t put as much pressure on as you did with the base coats to avoid the crystals leaving drag marks across the surface.
Gently spread the crystals across the area so that you have full coverage and drag marks are minimised.
Leave to Dry
Leave the Microcement to dry. With crystals in the mix, this often takes more time than standard Microcement. Allow up to 12 hours. Drying times do vary depending on temperature and ventilation.
Mixing 2nd Coat MicroDur Medium
You will need 5kg per 10m2 for your final MicroDur Medium.
For each 10kg batch, measure 2.5l – 3.0l Water using a measuring jug.
Pour the water into your mixing bucket, and mix in the Colour for 10kg MicroDur Medium. Use the water to rinse out all of the colour from the bottle – to avoid colour variation between batches. Add 10kg MicroDur Medium and mix thoroughly.
Do not add glass crystals.
Let the mixture rest for a few minutes before applying.
Applying 2nd Coat MicroDur Medium
Use this coat to glide over the previous one, filling in any imperfections as you go. Because there’s no crystals in it, you go can a lot thinner with this coat.
Leave to Dry
The microcement needs to be fully dry before sealer is applied. If not the microcement will not reach full hardness and could de-laminate.
Moisture content should be less than 5% before sealer is applied.
The timings below are for guidance only, your microcement may take longer to dry depending on temperature and humidity.
Leave MicroDur to dry for at least 24 hours.
Sand with 40, 80 & 120 Grit Silicone Carbide Sand Paper
Sand with 40 grit sand paper to reveal the crystals in the microcement. This will be a lot easier with an orbital sander than by hand.
Once you have revealed a good, even spread of crystals, move onto the 80 grit sand paper and give the whole area another sand.
Finally, use a 120 grit sand paper to tidy up your wark and close in the pours.
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.