How To Seal Concrete Garage Floors

If you want to hang around your garage often, you should consider sealing your concrete floor. Sealing can keep it looking good for years and protecting it from cracks and damages from salt, stains and moisture. You can apply sealant to make old concrete floor look new as well. There are several types of concrete floor sealants so be sure you know what you need. Epoxy resin, urethane and acrylic sealants are some. All three are long lasting but acrylic sealant usually lasts the longest and has a resistance to fading. It won’t matter if you have newly concreted garage floor or a hundred year old floor – sealing it would solve all the aesthetic and maintenance problems as well. Read on to find out how to seal concrete garage floors.

  • Be sure to clear the garage of obstructions. Obstructions mean all storage items, chairs, tables and your car. Clean the garage floors thoroughly. Sweep the dirt and dust off the area especially the corners. Use a vacuum cleaner to seep tiny particles. If there are oil stains and grease stains on the floor, scrub them off using mineral spirits before applying the sealant.
  • Get the measurements of your garage floor. To determine how much sealant you will need to cover the entire garage floor. To get the square feet, measure the length and width of the room and multiply both measurements. Take note that you will need one gallon to cover at least 200 square feet of the floor so if your garage floor exceeds that measurement, buy at least 2 gallons. Never work without sufficient supply – that will leave the application uneven.
  • Choose the right sealant. There are several concrete floor sealants in the market that varies depending on your geographical location like climate and conditions of weather. You might want to paint your floor so be sure that the sealant you are getting can be used under paint. You can consider getting the cheapest brand but be careful – read the labels first before buying it.
  • Protect your pipes and moldings. Cover exposed pipes in the garage as well as moldings with painter’s tape or mask tape to protect them from getting any sealant. Remember that the concrete sealant stains anything that it touches.
  • Prepare the sealant mixture. In a large container, mix in the sealant and the hardener. Mix them thoroughly so that each substance is completely dissolved. Using a paint tray, pour in some of the sealant. Be sure you use the mixture immediately.
  • Apply the sealant on the concrete floor. Use a stiff paint brush to apply the sealant first on the corners of the garage floor to make sure that the edges of the garage has been sealed. Next, use a roller and apply the concrete sealant at the right side of the room working your way to the left side. Work in sections so you can be sure that the entire room is completely covered. Once you have finished its entirety, don’t walk on it just yet! Let the sealant dry out completely in at least 24 hours.

Be sure you are working in an adequately ventilated room – that means keeping your garage door open to let the air circulate. Fumes might irritate your senses or can permeate into the house so keep the kitchen door shut and seal the doorway gap with a moist towel. You can paint over the sealant if you want to get a totally new look for your garage. Good luck!


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