Acid Staining Floors Under Construction

Tommy C: You’re listening to LISTEN.DIRECTCOLORS.COM podcast episode number 24. If this is your first time listening, then thanks for coming. I’m Tommy Carter and today we’re talking about acid staining floors during the construction. As acid stained floors have become more popular, homeowners need to know when to acid stain and what to do to protect the finish throughout the construction process. Shawna Turner, General Manager, with Direct Colors is here to give us the scoop on new construction staining projects. Welcome, Shawna.

ST: Thank you very much

Tommy C: What’s the first thing to keep in mind when acid staining floors in a new construction home?

ST:  Probably the first thing is to make sure your General Contractor knows and understands that you plan to acid stain the floors. If he or she knows in advance, they can properly direct the ready-mix company pouring and finishing the concrete as well as other building contractors to act accordingly.

Tommy C: What role does the pouring and finishing of the concrete play in successfully acid staining?

ST: If you plan to acid stain concrete, the mix should contain no more than 10% fly ash and should only be lightly machine troweled if at all. The concrete should be rich in cement content and the pores open for the stain to readily absorb and react. As long as the GC knows in advance, these requests should not be difficult or costly to implement.

Tommy C: When should a homeowner plan to acid stain their concrete during construction?

ST: The concrete should be allowed to cure for 30 days for best staining results. If at all possible, the concrete should be stained after the dry wall has been hung but BEFORE it has been mudded in. The reason this is so important is that dry wall mud is a very challenging contaminant to remove from concrete after the fact. Homeowners wishing to acid stain their floors are then forced to spend a lot to time and money cleaning that could have been entirely avoided. Spray insulation is also a problem. Spray insulation should be installed AFTER the floors have been covered with overlapping cardboard. The chemicals interfere with the staining and sealing process and are notoriously difficult to remove.

Tommy C: Just to be clear, could you give us the step by step process from acid staining to waxing?

ST:  Sure. That’s a good idea. Once the dry wall has been hung, clean the floors thoroughly using a medium to heavy duty organic degreaser and water solution. All debris, particularly chalk lines, paint, oil stains, dirt and the like, has to be off the surface and out of the pores before you begin. Sanding may be necessary for stubborn debris and staining. When the floors are clean and dry, apply the stain, neutralize and clean according to the instructions. Leave the floor to dry. At this point, you really only want to apply one coat of sealer. I recommend our Sprayable Satin Finish Sealer, especially if you’re working in the winter months. It does have a strong odor during application but can be sprayed on floors freezing and above.

Tommy C: Why just one coat of sealer at this stage?

ST: Even when you cover the floors with overlapping cardboard, damage can still be done during construction. Once the work is complete and the floor cleaned, another coat of sealer can be applied to repair any existing damage and make the floor look brand new again. The sprayable satin finish or AC1315 High Gloss are both solvent-based and have the ability to re-emulsify the acrylic for a smooth final coat.

Tommy C: So what are the final steps after applying the sealer?

ST: After the sealer has been successfully applied, allow the concrete to dry for at least 10 hours before covering with overlapping cardboard. DO NOT TAPE THE CARDBOARD TO THE FLOOR. Tape will bond with the sealer and ruin the finish. Keep the floor covered until construction is complete and the baseboards are ready for placement. At this point, you’re ready to remove the cardboard, clean the floor and apply your final coat of concrete sealer. Allow for 24-48 hours ventilation and dry time before applying the concrete wax and floor polish according to the instructions.

Next step: Enjoy your Floors!

Tommy C: Thank you, Shawna, for that detailed information about acid staining floors during construction. I know it’s a common planning question with our DIY customers. Check out our blog for more on the Care and Maintenance for Acid Stained Floors and other decorative concrete flooring projects.

Tommy C: Listen.directcolors.com includes podcasts on many decorative concrete topics so visit our podcast library for past episodes and check back frequently to see what’s new in the world of DIY decorative concrete! Thank you for listening.

Tommy C: The LISTEN.DIRECTCOLORS.COM podcast is produced twice monthly for your enjoyment and show notes can be found at LISTEN.DIRECTCOLORS.COM. Feel free to add the podcast to your favorite RSS feed.  You can also follow us on Twitter, Facebook, Google+ and Instagram. All links are in the show notes. I’m Tommy Carter and thank you for joining us!

 

 


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