with Flowtop
Watco Flowtop® is a pourable self-smoothing resurfacing product, ideally used for levelling damaged concrete. It contains polyamide fibres that reinforce the micro-structure to make it even stronger and improve resistance to shocks and abrasion. Flowtop is much easier to apply than conventional toppings meaning you can resurface large areas in one day saving you money and downtime. It will withstand heavy industrial traffic at only 3mm and for very uneven areas, thickness can be increased to 15mm.

Give the areas a good sweep to ensure that the substrate is free from dust and dirt.

If there are traces of oil or grease, clean the area using Watco Bio D, our biodegradable degreaser. For more preparation techniques tailored to the condition of your floor, please see the Technical Data Sheet.

Flowtop contains two primers, a bottle of resin and a powder. Pour Primer 1 onto the prepared surface. Using a brush or soft broom, spread the primer across the floor. Allow it to soak into the concrete for 15-20 minutes.

Pour Primer 2 onto the prepared surface. We supply sufficient Primer 2 to allow for very absorbent surfaces. Beware that application to less absorbent surfaces will require less than we supply.


Empty the resin into the bucket. Add in the powder. Then mix until smooth with a mixing blade.

Mix until it is a solid colour and a creamy consistency. We recommend you mix one bucket at a time to better control quantity.


Once mixed, pour the concrete floor resurfacer directly on top of Primer 2. Spread Flowtop across the floor surface with a trowel. It may be convenient to work to a thin batten for depth and edge control but this must be removed before further sections are treated.

Finally, use the spiked roller 3-4 times in different directions to get rid of any air bubbles.

Learn how to resurface damaged or rough concrete areas with our straight-forward how-to video which will take you through the process from start to end.