Strongcoat Fast Cure

Application Conditions:

Strongcoat™ Fast Cure is a relatively viscous coating. Do not apply outside of the range 10 °C to 25 °C. Localised heating or cooling equipment may be required outside this range to achieve ideal temperature conditions. To reduce the risk of “blooming” caused by condensation, the climate above the uncured floor should be maintained at least 3°C above the dew point for at least 48 hours after application.

Surface Preparation:

Concrete substrates must be a minimum of 28 days old, dry, clean and free of surface laitance and contaminants such as dirt, oil, grease, poorly bonded coatings and surface treatments. Inadequate preparation will lead to loss of adhesion and failure. In coatings, there is a tendency for the finish to mirror imperfections in the substrate. Grinding, or light vacuum-contained shot- blasting is therefore preferred over planing for these systems. Concrete must include a functional damp-proof membrane.

Priming:

Strongcoat™ Fast Cure does not normally require a primer on dry substrates. When treating extremely porous or damp concrete, prime as follows: Substrate relative humidity <75%: Flowprime SF (Weak or porous) Substrate relative humidity >75%: Flowprime DPM (’green’ concrete).

Application:

Best results are obtained in warm conditions (minimum 15 ºC ). Apply with a medium pile simulated sheepskin roller working well into the surface taking care not to exceed the coverage rate. Edges and difficult to reach areas may be applied thinly by brush. An anti-slip finish may be achieved by fully sprinkling the first coat with kiln dried silica sand at 3 - 4 kg/m². Allow the first coat to fully cure (24 hours at 15 ºC or longer in colder temperatures) then remove all excess sand with a stiff broom and vacuum and apply a second coat to encapsulate the grains. Coverage rate will depend on surface profile but will be significantly greater than for the first coat. As a guide:

Note: These coverage figures are approximate as silica sand grading can vary widely as can site conditions. If in doubt, order extra material to account for wastage or install a test area prior to starting works. The pendulum test values given above are derived from testing in a controlled laboratory environment and are given for guidance only. Results derived from testing field-applied samples may vary dependent upon site conditions and application technique. Slip resistance can reduce over time due to poor maintenance, general wear or surface contaminants. Good housekeeping practices should be observed.

Fast Cure Limitations:

Time limitations may necessitate a faster initial cure time (working between shifts or close down periods) in which instances the use of a Fast Cure hardener can be employed. On average, this has the effect of reducing the hard cure time by 1/3 but also reducing the usable life by 1/2, for example:

Strongcoat Standard
Hard cure time at 20°C - 16 hrs
Usable life at 20°C - 30-40 mins


Strongcoat Fast Cure
Hard cure time at 20°C - 11 hrs
Usable life at 20°C - 20 mins


Physical and chemical resistant properties are little affected by this substitution. It should be noted that despite the accelerating effect of this hardener over hard cure time, the resistance time of the product to chemical contact will still only be achieved after normal 5 day cure period. The hardener adopted for the fast cure epoxy system has been designed to reduce hard cure time at “normal” application temperatures (15-20°C). This product should not be specified as a means to providing an epoxy system capable of curing in temperatures below 10°C as this will lead to extended cure times with the possibility of carbonate salt formation if the ambient humidity is high.

Certain colours are subject to availability

Technical Datasheets

Strongcoat Fast Cure