Monday, 22 October 2007 17:30

How To Waterproof A Basement Wall



Waterproofing your basement may seem like a lot of work but it can save you time and money down the road if you run into mold, mildew or a water leak.  Usually it is as simple as applying two coats of a waterproofing paint to your cement block wall. 




  • Remove any efflorescence (white powdery substance usually found on lower blocks) with a muriatic acid or etching solution.   
  • Rinse the surface thoroughly with water twice to remove any residue left from the etching solution.
  • Remove any mold or mildew using a 1:1 mixture of bleach and water.
  • Fill cracks and holes with a concrete patch.


Materials Needed


Brush, 3/4" or 1" nap roller, paint tray, drop cloth, waterproofing paint, concrete patch, putty knife, etching solution.




  1. Apply the first coat of the waterproofer using a thick nap roller cover or brush. 
  2. Allow the product to dry.  Inspect the job to make sure that there are holes where the product has soaked into the block.  If you do find any make sure to note where they are so you can cover them during your second coat
  3. Apply a second coat of the waterproofer.  It is not necessary to top coat this product with paint, however you can paint the surface after it has dried.
Published in Walls
Tuesday, 03 February 2009 19:27

How To Paint a Basement Floor



Painting a basement floor requires little preparation work and can give your basement a whole new look.  It will also seal the floor which will make cleaning easier.


Preparation for painting a basement floor 


If your floor has been painted already:



  • Simply clean your floor with TSP (tri-sodium phosphate).  It is a heavy-duty cleaner that will remove dust and dirt from the floor.
If your floor is bare concrete: 
  • You need to etch the floor (open the pores of the concrete) by cleaning it with muriatic acid or a similar solution.  I recommend Clean & Etch by Krud Kutter, as it is easier to use than muriatic acid. 
  • Once the floor is etched, it must be rinsed to deactivate the etching solution.
Choosing not to etch bare concrete before painting can result in premature failure of the paint because it will not bond to the surface as well.
Materials Needed
Paint tray, paint roller, paint brush, extension pole
Basement Floor Painting Tips
Floor painting is very much like wall painting.  It helps to have someone cutting in around the outside of the wall with a paintbrush while the other person is painting with a roller.  Make sure to use an extension pole on the end of the roller frame so you can stand while painting.  
Floor flecks, like used in garages, can also be used in any floor paint.  They must be sprinkled on the floor while the paint is still wet so they will adhere.   
Apply two coats of a good floor paint to achieve the most durable finish.  
Published in Painting