How to waterproof a basement

If you’re looking for a quality basement waterproofer, you have quite the task ahead of you. Basement waterproofing should be a straight-forward process, but unfortunately, it’s not. There are a lot of waterproofers on the market, but not all are made equal. Liners and coatings litter your local home improvement store, but none are as durable and versatile as SANI-TRED®. In this waterproofing how to post, let’s explore the SANI-TRED® process. We have given you a step by step “how to waterproof a basement” DIY guide that will insure your success.

The SANI-TRED® Process | How to Waterproof a Basement 

SANI-TRED® is a revolutionary three component waterproofer that is perfect for your basement. The SANI-TRED® DIY basement waterproofing solution works together to adhere to your concrete, patch the concrete, fill joints, and completely seal your concrete permanently. No other basement waterproofer on the market can match SANI-TRED®. But how do you waterproof your concrete basement DIY-style? By following the simple SANI-TRED® process, you’ll successfully, and permanently, waterproof your basement. So let’s go over this process of sealing a leaky basement.

What You’ll Need: PermaFlex™, LRB (Liquid Rubber Base), TAV (Thickening Activator), Magic trowel, paint roller.


Step 1: Prepare

Start by preparing your concrete surface, making sure it’s clean, dry, and free of any previous applied products. Fully prepared concrete is clean and free of any foreign matter that will affect coating adhesion.

 Step 2: Prime

Once concrete is clean and dry, apply 1 coat of PermaFlex™ to the surface (2 prime coats are required for concrete block surfaces). Cover the entire surface with this priming coat using a paint roller. Let the prime coat dry about 1-2 hours before proceeding.

Step 3: Patchhow to waterproof a basement

Once the Prime coat has dried, mix 2 parts LRB (Liquid Rubber Base) with 1 part TAV (Thickening Activator). Apply this mixture to any cracks, holes, joints, or other imperfections to patch and profile your concrete surface. This coat fills in any gaps and adheres to the previous layer of PermaFlex™.  Use a 1″ diameter caulk bead of LRB/TAV mixture to patch wall joints. Most other cracks use a 3/4″ diameter caulk bead.

Step 4: Top Coat

Once the LRB/TAV mixture dries, apply a top coat of PermaFlex™ to completely and seamlessly seal your leaky concrete basement.


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