HOW TO RE-COAT EPOXY FLOOR

Epoxy floor paint can give you a durable and impermeable surface that is harder than the wood or concrete substrate, but it doesn’t last forever. An epoxy finish that has lost its sheen or otherwise been damaged can be re-coated but you have to prepare it properly so that the new epoxy can adhere. This include careful cleaning with a grease-cutting detergent to remove the oily layer that has built up, though may be invisible. You also have to etch the surface so that it will be rough enough to bond with the new finish.

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Credit: Guide on re-coating an epoxy as recommended by a St. Louis concrete expert

Here are the steps to follow when re-coating an epoxy floor.

  1. Repair chips and holes in the floor. If fresh mortar was used, allow the repairs to cure for about 60 days before re-coating with epoxy.
  1. To clean the floor, mix a solution of grease-cutting detergent and warm water. You can use an all-purpose household cleaner for floors inside the house, but if it’s a concrete garage floor, use an industrial-grade product that can remove heavy-duty oil and grease deposits. Then, mop the floor with the detergent solution, and remove grease deposits with a scrub brush.
  1. Get a screening attachment, floor buffer and 80-grit sanding screen. Use the buffer to sand the floor so as to etch the finish. You can make use of a pad sander with 80-grit sandpaper to etch corners and other places where the buffer can’t reach.

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    Credit: Guide on re-coating an epoxy as recommended by a St. Louis concrete expert

  1. The floor should be vacuumed and wiped down with a damp rag to remove the traces of old finish leftover from sanding.
  1. According to instructions that come with the paint, mix the epoxy paint and hardener. Make sure you prepare only enough to cover the floor as any leftover paint can’t be reused.
  1. Use a paintbrush to paint the edges of the floor and then use a paint roller and 3/8-inch nap roller skin to paint the main area. If you are adding color flakes, roll the floor in sections and then spread the flakes on each section as you finish it.
  1. Allow the paint to cure for about 24 hours, depending on the product you are using. Enough clear epoxy finish should be mixed with hardener to cover the floor. Then, spread it in the same way that you spread the color coat.
  1. The clear coat should be allowed to cure for the recommended time and this is usually from 12 to 24 hours. If you are coating the garage floor, make sure you wait 72 hours before driving your car on it.

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