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Critical Information

• Whenever possible we prefer to have the first grinding passes done prior to the drywall installation. This eliminates the sometimes dusty edge work that is typically done by hand, also resulting in a better end product.

• In most cases we leave the slab densified for the continuation of the build/reno. This leaves an abrasion resistant surface to work on, although trades must be careful with compressor oils and adhesives as they will stain the surface. It is usually best to leave the floor uncovered, although in rare cases we may lay down temporary sheets of protective material.

• Prior to the last coat of paint and installation of baseboards and cabinetry, we will complete the final stages of polishing. The final step is the application of a finish coat and burnishing of the floor with a high-speed burnisher. This application is not a wax or a coating, but a micro film/ penetrating sealer that provides stain resistance and enhances the colour.

• A 220V/ 40amp service is needed for our large grinding machine. We also need a dedicated 15amp plug for the vacuum, and 2 more 15amp circuits for additional machines.

• The workspace needs to be free and clear of tools and materials. It is very difficult to do a project when one floor is sectioned into working stages, unless it is larger than 2000 sq/ft.

• A curing slab must not be covered or used to store construction material for at least 7 days.

• Do not spill plumbers glue, primer, solder, threading oil, or flux onto the untreated or treated concrete. Provide some small temporary and transportable cardboard or masonite for your messier trades, such as plumbers, and see that they use it! Threatening charges often ensures compliance, but education of it’s importance is often amply effective.

• Do not use paint, grease pencils, markers, crayons, or red chalk to mark on the slab.

• Do not leave metal or nails on the floor if a standard gray polish is the intended aesthetic, for they will rust due to the moisture in the green slab.

• Do not let contractors eat or drink on slab, as greasy foods can really soak in.

• Set a tone of cleanliness and have the slab swept daily. Keep a trash can and job-site broom/ dustpan on the site at all times.

• Spray foam insulation/ insulating foam cans, adhesives, silicones and glues will stain a slab badly. Make sure everyone on the site knows this information!

• Make sure the painters pay close attention to masking the edges WELL, with poly or paper. Do not use masking tape.