Waterproofing your basement is a crucial task that you, as a homeowner, can undertake to maintain the integrity of your home, especially if you live in an area prone to moisture issues. In addition, it is the first step to any basement remodeling project.
DRYLOK, a widely trusted product, is designed to prevent water seepage and protect your basement walls and floors from damage. In this step-by-step guide, we’ll empower you with the knowledge of how to apply DRYLOK to your basement project for optimal results.
Materials You’ll Need:
- DRYLOK Extreme or DRYLOK Original Latex Masonry Waterproofer (depending on your needs)
- Stiff-bristled brush or broom (for surface cleaning)
- DRYLOK Etch or Muriatic Acid
- DRYLOK Fast Plug
- Power washer or hose
- Stiff-bristled brush or Paint roller (with a thick nap)
- Drop cloths or plastic sheeting
- Painter’s tape
- Extension pole (optional for reaching high areas)
- Rubber gloves
- Safety glasses
- A bucket (if mixing)
- A stir stick (for DRYLOK)
Step 1: Clean the Basement Walls and Floor
Before applying DRYLOK, it’s essential to ensure the surfaces are clean and free of debris, dirt, grease, and mold. Any contaminant on the surface can affect adhesion and the product’s overall effectiveness. This thorough cleaning process will give you the confidence that DRYLOK will work as intended.
- Scrape off loose paint: If there’s any old, peeling paint on the walls, use a scraper or wire brush to remove it. You can still paint the precoated surface with DRYLOK, but remember, the warranty will be voided.
- Wash with a stiff brush: Use a stiff-bristled brush and warm, soapy water to scrub the surfaces. Focus on areas with dirt, stains, or efflorescence (white powdery residue). If you have efflorescence, neutralize these naturally occurring salts with an acid etch. You can use DRYLOK Etch or muriatic acid.
- Rinse with clean water: Use a power washer or a hose to rinse away all soap and residue. Allow the surfaces to dry completely before continuing.
- Inspect for cracks or holes: Check for any visible cracks or holes in the walls or floor. Patch these defects using DRYLOK Fast Plug or DRYLOK Masonry Crack Filler. Take note of the floor wall joint (the area where the floor meets the wall). These should be repaired before applying DRYLOK to ensure a waterproof seal.
Step 2: Repair Cracks or Holes
If you notice cracks, holes, or damaged areas in your basement walls or floor, it’s essential to repair them to ensure the best results.
- Patch cracks: Use masonry repair caulk or hydraulic cement to fill in cracks or gaps. For larger cracks, you may need to apply a patching compound designed for masonry.
- Smooth-out repairs: After the filler has cured, use a putty knife or trowel to smooth out the patched areas, making them flush with the surrounding surface.
If you are using a product other than DRYLOK-branded patching materials, note that DRYLOK should be compatible with most latex-based patching compounds.
Step 3: Protect Surrounding Areas
Before applying DRYLOK, protect your floors and any other areas you don’t want to get coated.
- Use painter’s tape: Tape off edges, trim, and areas where the wall meets the floor or ceiling to prevent DRYLOK from getting on surfaces you’re not treating.
- Cover the floor: Lay down drop cloths or plastic sheeting to protect the floor from drips or splashes.
Step 4: Stir the DRYLOK Product
Properly mix your DRYLOK waterproofer to ensure consistency and smooth application.
- Open the can: Use a can opener or a screw-top opener to open your DRYLOK.
- Stir thoroughly: Mix the product thoroughly with a stir stick or drill with a mixing blade. DRYLOK tends to separate a bit, so ensure an even consistency. Follow the product label instructions for specific mixing guidelines.
Step 5: Apply the First Coat
Now that your surfaces are prepared, it’s time to apply the first coat of DRYLOK.
- Use a paint roller: For large areas like walls or floors, use a paint roller with a thick nap (3÷4″ to 1″). Start at one corner and roll DRYLOK onto the surface in an even, overlapping motion. If you use a paint roller, it is important to back brush to work the product into the pores of the masonry for proper waterproofing.
- Apply a thick, even coat: DRYLOK needs to be applied thickly for proper sealing. The first coat may look uneven or streaky, but this is normal.
Step 6: Allow Drying Time
Once the first coat is applied, allow it to dry completely before applying the second coat. Drying time can vary depending on the product, humidity, and temperature, but typically, it takes about 2 – 3 hours for DRYLOK to dry to the touch.
- Check the drying conditions: Ensure the room temperature is between 50°F and 90°F and avoid working in high humidity or direct sunlight.
Step 7: Apply the Second Coat
For maximum protection, a second coat of DRYLOK is required.
- Roll or brush on the second coat: Use the same technique as the first coat, applying a thick, even layer of DRYLOK to the entire surface.
- Ensure complete coverage: Ensure that no areas are left exposed, especially around corners or repaired cracks.
- Allow the second coat to dry: Again, allow the second coat to dry completely (about 2 – 3 hours). Check to make sure the coverage is uniform. You must wait 24 hours to apply if you desire a decorative topcoat.
- Pin Holes: If you notice pin holes in the finish after drying, coat those areas with additional DRYLOK coats until they are no longer present.
Step 8: Clean Up
After completing your application, you must clean your tools and dispose of any waste materials.
- Clean your brushes and rollers: Clean your brushes and rollers immediately after use with warm water and soap to prevent the DRYLOK from hardening on the bristles. A DRYLOK Brush can be reused several times with effectiveness.
- Dispose of materials properly: Dispose of any leftover DRYLOK or other materials according to local regulations.
Step 9: Maintain the Surface
To ensure the longevity of your waterproofing job, it’s important to be proactive and continue to monitor your basement for any signs of water infiltration or reoccurring efflorescence. If you notice new cracks or damage, address them promptly with masonry repair products and touch-up DRYLOK as needed. This regular maintenance will keep your basement in top condition.
