Professionals Microcement Kit for External Surfaces

Everything you need to complete a strong, waterproof wet room or worktop in microcement.  Some professional tools and techniques are required for superior results. More colours available, see all colour options. For colours not listed below, select “other” and tell us the colour at checkout.


Add to wishlist
SKU: 00020-1-2-2-3-2 Category:
Working Time
45 Minutes
Stucco Effect

Yet another game changing product from Cemher. Our microcement kit for external surfaces utilises products that were originally developed for swimming pools. Both the MicroRock Basae and the MicroRock Medium are completely waterproof and will maintain adhesion even when they are completely submersed in water for long periods of time. This means that whatever the British weather throws at it, your external surfaces will stand the test of time.

All the materials you need to create a contemporary, high performance outdoor space.

Easy to follow step by step installation guide included with every kit.

Professional tools needed: Trowel, Electric Drill with Mixer Head & Weighing Scales

This kit contains MicroRock Base and Medium, an epoxy based microcement which is inherently waterproof, so you don’t need to worry about water stains or blisters in the surface of your microcement.

MicroRock is also super strong, combined with our high performance sealer, AquaMax Extreme, you can be sure this kit will hold it’s own throughout the seasons.

The end result is strong, flexible, lightly textured surface.

Suitable for use on: Sand & cement screeds, Anhydrite screeds, Self-Leveller, Timber Composites.  Surfaces much have a compressive strength greater than 28 MPa.

Surfaces should be flushed and level with no gaps and no chance of movement before microcement is applied.

Kit Includes:

• Cemher MicroRock Base
• Cemher MicroRock Medium & Hardener
• Cemher AquaMax Extreme & Hardener
• Concentrated Colour for Base & Top Coats
• Step by Step Instructions

What’s the difference between the DIY & Professionals Kits?

Our professionals kits are intended for use by experienced microcement professionals. The floors & walls kits need mixing & sealing carefully, these are the kits that you can get the highest stucco effect with. The professionals worktop & wet room kit is waterproof & needs to be mixed with a hardener so has a limited pot life of around 45 minutes to 1 hour.  It also requires some advanced techniques to get a stucco effect – these are not covered in the online microcement training. The DIY kit isn’t quite as strong as the professionals kit but it’s pre-mixed & waterproof so easy to work with & apply.

Should I choose Absorbent or Non Absorbent?

These terms refer to the surface (or substrate) that you’re going onto, tiles & marble are Non Absorbent, where plaster, concrete, timber composite are Absorbent.

How can I make sure I’m getting the right Colour?

Because colours on screens can vary massively from one computer to another, we’d always recommend that you buy a colour swatch before choosing a microcement colour. Microcement does contain natural minerals however so colours & textures may vary slightly between batches & products lines. The best way to be sure you are happy with the colour is to do a small sample before you start – and then wet it to get an idea of the colour it will go when it’s been sealed.

Is Microcement Strong?

Microcement is very strong, but it’s only ever as strong as the substrate that it is going onto.   Take your time to ensure the surface is well consolidated and prepared adequately for microcement, visit our Surface Preperation Guidelines more information on surface preparation and after care. The compressive strength of microcement is very high, but only if each of the coats are no thicker than the grain within it.  Trowel each coat as tightly as possible to get the benefit of the high compressive strength.

Weight N/A
Data Sheet

Step By Step


Gloss, Matt, Satin


Crater Volcanico, Escorial, Grafeno, Montblanc, Other, Piedra de Lago, Roca Alpina, Titanium

No. m2

10m2, 20m2, 30m2, 40m2


Absorbent, Non Absorbent

Delivery & Collection Options

Our offer

  • Cemher Bi-Flex Steel Trowel

    £30 incl. VAT
  • Cemher Microcement Mixer Head

    £49 incl. VAT