Any dirt, flaking old paint, grease, green mould or other matter attached to the concrete surface is a physical barrier that can block adhesion of your stone coating.

Cleaning is the single most important step you can perform to protect your investment. Using the right tools, it's also very easy.

USE A PRESSURE WASHER TO CLEAN EXTERIOR CONCRETE

This is absolutely the most effective cleaning tool there is. Use at least 1700 p.s.i. with a “turbo nozzle” or “orbital tip” a few inches from the ground -- in a SLOW SWEEPING MANNER. Avoid waving the washer back and forth quickly like a leaf blower – which will eliminate ALL pressure washing benefits.

DON'T HAVE A PRESSURE WASHER?

You can still clean your concrete effectively without a pressure washer. Use a deck brush to scrub the concrete with a strong TSP and water solution, and take care to thoroughly rinse away all loosened dirt and grime. When the concrete is dry, run your hand over the surface (see video at right). If you don't pick up any dust, the surface is ready for coating.
Do you have a question about cleaning a particular surface? We're here to help. Contact us at info@techstone.ca
or call: 1-877-279-0694.
The coating has to grab
and penetrate for success
That means a good wash to remove the dirt to allow your stone coating to anchor firmly into the concrete.
Pressure washing doesn’t just clean the surface. It blasts out the pores to allow the coating to penetrate.
To help loosen up and remove any dirt, mould and other contaminants before pressure washing, a quick scrub with TSP is effective.
Clean your
concrete for lasting benefits.