To effectively waterproof your basement with DRYLOK, the first step is proper wall preparation. This guide will instruct you on how to prep basement walls for Drylok, including how to inspect, clean, and repair your basement walls before applying DRYLOK, ensuring optimal results.

Quick Summary

  • Inspect the basement walls thoroughly to identify sources of moisture and any structural issues before starting the waterproofing process.

  • Remove old peeling paint and clean the walls to ensure the DRYLOK sealer adheres properly; prepare cracks and holes with hydraulic cement.

  • Apply two coats of DRYLOK paint, ensuring all pores and pinholes are filled, and inspect the surface between coats for best results.

Introduction

DRYLOK is not just another waterproofing solution in the market. It’s a comprehensive system designed to tackle your basement’s moisture issues head-on. From preparing the surface, patching cracks and holes, to applying the finish coat, DRYLOK offers all the tools you need to get the job done right.

Shall we embark on the process of how to prep basement walls? The first step is to inspect your basement walls thoroughly. This initial stage is significant as it provides a thorough understanding of the issues at hand and subsequently, how to address them.

Inspect Your Basement Walls Thoroughly

There’s a saying that goes, “Know thy enemy,” and it couldn’t be more accurate when dealing with basement moisture. You need to acquaint yourself with every nook and cranny of your basement – the walls, the masonry surfaces, and even the hot water tank. Check if your downspouts work properly and if your gutters are clean. Too much moisture in the basement can make your walls constantly moist. This can lead to peeling paint, and as a result, your basement walls looked terrible.

As an expert in basement waterproofing, I cannot overemphasize the significance of this stage. It’s all about understanding how moisture interacts with your basement. From the inside to the outside, you need to inspect every possible source of moisture. This will help you prep your basement walls effectively for the DRYLOK waterproofing process.

Remove Old Peeling Paint

Once you’ve thoroughly inspected your basement, it’s time to get down to business. And that means dealing with the old peeling paint. Removing old paint from the walls is a necessary step to ensure proper adherence of the DRYLOK paint. But remember, this is not an easy task, especially when dealing with waterproofing paint.

I found that using a 6-inch drywall knife works wonders in removing old peeling paint. You can also use a wire brush, sandpaper, or even the more potent means – a high-pressure power washer with hot water. Just remember, if you go for the power washer, you’ll need to allow ample time for your basement walls to dry thoroughly.

Clean and Prepare the Surface

With the old paint out of the way, it’s time to clean and prepare the surface. Trust me, this is a step you would not want to miss. DRYLOK sealer works best when it’s applied to clean, dry, and grease-free masonry surfaces. So, grab a standard brush and start scrubbing away any dirt, dust, and debris from your basement walls.

Also, while you’re at it, keep an eye out for efflorescence. It’s a white, powdery deposit caused by water-soluble salt compounds in the masonry. If you spot any, make sure to remove them using a wire brush or a specialized efflorescence remover. I’ve found muriatic acid to be particularly effective in removing efflorescence.

Fill Cracks and Holes with Hydraulic Cement

Next up, we have to tackle any cracks and holes in your basement walls. Water has a sneaky way of finding the smallest cracks and worming its way into your basement. Therefore, it’s necessary to seal these cracks using an appropriate masonry patching compound, such as hydraulic cement, prior to waterproofing basement walls with the DRYLOK application.

Hydraulic cement is a real game-changer when it comes to dealing with cracks. This potent stuff, also known as a pliable cement mixture, contains:

  • alite

  • belite

  • celite

  • brownmillerite

These components contribute to its strength and ability to remain in liquid form until needed. Once it comes into contact with water, it dries and hardens rapidly, effectively sealing the cracks and preventing water seepage.

But be warned, hydraulic cement dries very quickly once water is added. So, make sure you have everything ready before you start. And remember, it’s not just vertical cracks that are a problem. Horizontal cracks in the foundation have the potential to cause problems. These cracks should not be ignored and require prompt attention. So, ensure every crack, no matter where it is, is filled with hydraulic cement before moving on to the next step.

Smooth the Walls with an Angle Grinder

Now that all the holes and cracks are filled, it’s time to smooth out the walls. This is where an angle grinder comes in handy. Using an angle grinder with a Sawtec blade, you can easily knock down any high spots on your basement walls. This will not only make the walls smoother but also make the painting process much easier and an angle grinder is a valuable tool for this task.

Once you’re done smoothing the walls, don’t forget to brush off the excess dust. You can use a broom for this. Remember, a clean surface is the key to ensuring the DRYLOK paint adheres properly when painting walls.

Safety Precautions Before Painting

Before you grab that paintbrush, there are a few safety precautions you need to take. DRYLOK paint has strong fumes. Thus, ensuring good air circulation by opening windows and doors is of utmost importance. Also, if you have a gas furnace, hot water tank, or gas dryer in your basement, remember to turn off the gas to prevent accidents from paint fumes.

Also, don’t forget to wear protection. Gloves, respirators, and eye protection are a must when working with DRYLOK paint. Trust me, the last thing you want is to be caught off guard by an unexpected splash of paint.

Gather All the Supplies

Now, let’s talk supplies. A few essentials are required for a successful DRYLOK waterproofing project. First and foremost, the DRYLOK paint. It comes in several colors, including:

  • blue

  • white

  • gray

  • beige

So you can choose one that suits your style. For a smoother finish, you might want to consider using DRYLOK Extreme Masonry Waterproofer for effective masonry waterproofing.

In addition to the paint, you’ll also need:

  • specific brushes or rollers designed for masonry

  • a paint sprayer (optional)

  • a drop cloth to protect your floor from spills and splatters

  • a metal tray for even distribution of DRYLOK paint on your rollers or brushes.

Apply the First Coat of DRYLOK Paint

Having completed all the preparation and gathered your supplies, you can now apply the first coat of DRYLOK paint. Stir the DRYLOK Original Masonry Waterproofer thoroughly before and during application. You can use a brush, roller, or paint sprayer to apply DRYLOK to the walls.

If you’re using a roller, don’t forget to back brush the first coat to ensure all pores and pinholes are filled. Once the first coat has dried, inspect the surface for remaining pinholes and fill them in. This might take some time, but believe me, it’s worth it.

Inspect and Apply the Second Coat

After the first coat has dried, which typically takes about three hours, you should inspect the surface. Look for any remaining pinholes and fill them in. Remember, proper coverage is necessary for the warranty of DRYLOK to apply.

After the inspection, you’re ready to apply the second coat. Just like the first one, you can use a roller, brush, or sprayer. However, this time around, pay particular attention to any areas where pinholes are still present after two coats. These areas may require an additional coat.

Applying two thick layers of DRYLOK forms an effective moisture barrier, a key component for maintaining a dry and healthy basement. So, take your time and make sure every inch of your basement walls is covered.

Extra Tips for Best Results

Now that your basement walls are successfully coated with DRYLOK, here are a few extra tips to maintain a dry and healthy basement environment. First up, keep an eye out for mildew. If you spot any, spray a solution of 2 parts water to 1 part bleach to kill it. After applying DRYLOK, monitor the basement for any new mildew spots and treat them immediately.

Additionally, a dehumidifier can be used to maintain stable moisture levels and prevent the growth of mildew. If you reside in a particularly humid area, you might want to consider using oil-based DRYLOK for extra mildew resistance and a stronger moisture barrier.

Summary

There you have it, folks – a comprehensive guide on prepping your basement walls for DRYLOK waterproofing. We’ve gone through the entire process, from inspecting your basement walls, removing old paint, filling cracks with hydraulic cement, smoothing the walls, gathering supplies, to applying the DRYLOK paint.

Remember, a dry basement is a healthy basement. So, don’t let moisture rob you of a usable and pleasant basement. Take action today and transform your damp and dreary basement into a dry and welcoming space with DRYLOK waterproofing.

Frequently Asked Questions

Can I apply DRYLOK paint directly over old paint?

No, it’s important to remove all old paint from the walls before applying DRYLOK paint to ensure it adheres properly.

How can I remove efflorescence from my basement walls?

You can remove efflorescence from your basement walls using a wire brush, specialized efflorescence remover, or muriatic acid. Be sure to follow safety precautions and instructions for whichever method you choose.

How many coats of DRYLOK paint do I need to apply for effective waterproofing?

You’ll need to apply a minimum of two thick coats of DRYLOK paint for effective waterproofing. This ensures a strong, water-resistant barrier.

What should I do if I spot mildew in my basement after applying DRYLOK?

If you spot mildew in your basement after applying DRYLOK, spray a solution of 2 parts water to 1 part bleach to kill the mildew. Be sure to regularly check for new mildew spots and treat them promptly.

Can I use a dehumidifier in my basement after applying DRYLOK?

Yes, using a dehumidifier in your basement after applying DRYLOK can help maintain stable moisture levels and prevent mildew growth.