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Waterproofing and Painting your Garage

Waterproofing and Painting your Garage for under $300




Over and over, our garage would get wet with a heavy rain.  As the time passed, it would get worse.  The floor developed a large crack in it and the water would surface from below ground.  The walls were painted by the previous owner and with time, the paint started to peel and the water would leak in when we had a terrible rain storm.  Sometimes it even flooded.

Finally my family and I decided to tackle the project of sealing and painting the 2 car garage and ultimately keeping the water out for good.


Before - Wall

After-Sealed Wall


Skill Level: Beginner – Intermediate


Time: A Weekend and a few helping hands.


Cost: Under $300


Tools & Materials:

  •  Rust-Oleum EPOXY Shield Garage Floor Coating Kit- 1 box 2 ½ car garage
  • Behr Masonry Water proofer – 2 gallons
  • DRYLOK Fast Plug Hydraulic Cement
  • Trowel
  • Disposable Masks
  • Disposable Gloves
  • Roller on a Pole
  • Roller Cover
  • Paint brush
  • Paint tray
  • Hard Bristle Brush
  • Sandpaper (Optional)
  • Spray paint (Optional)


Step 1 – Empty your entire garage.  By far, this part is the worst.  It’s relatively easy from here.


Step 2 – Clean the walls and prepare the floor with the cleaner provided in the Rust-Oleum Garage Floor Paint Kit.


Step 3 – After drying time, seal the walls first, with Behr Masonry Water proofer.

Sealing the walls


Step 4 – Patch any cracks and holes in the floor, with the DRYLOK Fast Plug Hydraulic cement.

Plugging the cracks


Step 5 – Following the instructions provided in the kit, mix the 2 part epoxy paint.  Have one person cut in the sides of the room and the other begins rolling the floor, in 4’ x4’ sections.  The floor needs to be painted in about and 1hr to 1 ½ after it has been mixed. 


Step 6 – After each 4’ x4’ section has been painted, toss the decorative chips to the wet paint.  This adds a little texture and color to the floor. 

Painting 4'x4' squares


Optional Steps – Our entire family helped.  The kids too!  They mixed old gallons of paint to make various shades of grey paint and they painted the walls.  They also spruced up the shelving that we had in the garage and sanded and spray painted it to make it look like new.

Finished Garage


This project may look difficult and time consuming but it really is not.  The most time that is taken, it waiting for the walls and floor to dry.  Be sure to read all package instructions.  Once the floor was painted, we could not walk on it for 24hrs or drive on it for 3 days.


Finished Garage Floor


Please let us know if you have any questions or need help with your project. 

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Posted 2012-10-09T18:19:48+0000  by Jen_HD_BOS Jen_HD_BOS