Applying HydroPrimer
For porous microcements like MicroDur, you need to prepare the surface with 2 coats HydroPrimer before applying your sealer.
Follow the directions below to apply the HydroPrimer before applying the sealer.
HydroPrimer is a single component product. You will need a medium pile microfibre roller and tray plus a clean mixing bucket and measuring jug.
Apply Diluted Coat HydroPrimer
At this stage, the microcement surface is very absorbent, HydroPrimer is a pre-sealer that will start to make the surface waterproof so that it is less absorbent when the Polyurethane is applied, allowing them to be applied more easily.
Dilute the HydroPrimer with 50% water, this will give you more time to work with it.
Use a medium pile roller to apply the diluted coat of HydroPrimer ensuring it is completely and evenly saturated.
Saturate an area and then go back over it with the roller to iron out lines and remove any excess product.
Work quickly & randomly, keeping the edge wet.
Leave to dry.
This should take around 3 hours but may vary depending on temperature and humidity.
Apply Neat Coat HydroPrimer
Apply a neat coat of HydroPrimer in the same way that you applied the 1st coat.
Ensure you cover the full area with both coats of Hydroprimer and use the full amount provided (1l per 10m2) across the 2 coats.
Cemher HydroPrimer
| Application on Single Component MicroDur Surface | |
|---|---|
| Process | Application on Single Component MicroDur Surface: Diluted Coat followed by Neat Coat |
| Mix Ratio |
Application on Single Component MicroDur Surface:
Diluted Coat: 50% Water / 50% HydroPrimer Neat Coat: 100% HydroPrimer |
| Standard Consumption | Application on Single Component MicroDur Surface: 1l per 10m2 |
| Estimated Drying Time |
Application on Single Component MicroDur Surface:
Diluted Coat: Minimum 1 hour No Maximum Neat Coat: Minimum 4-5 Hours before AquaMax, AquaPur or MaxiPur |
| Tools Required |
Application on Single Component MicroDur Surface:
Medium Microfibre Roller Roller Tray PPE |