Dear Lettie,
Our roof deck is bare concrete and when it rains, water droplets fall from our ceiling. I want to apply Boysen Plexibond to stop the leaks. Kindly give me advice on this.
Thank you.
From,
Boysen User J
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Dear Boysen User J,
Thanks for your message! It’s the rainy season in the Philippines and water seepage can be a problem for a lot of us.
Let’s start with the leak. Before applying waterproofing measures, like Boysen Plexibond, it’s recommended to first search for and identify the source of the water seepage. Look for cracks as this is where water is usually able to enter.
When you find the source of the leak, carry out appropriate repairs such as sealing concrete cracks. If you can, it’s always better to consult with a professional like a waterproofing contract especially if the leak is significant.
Alright, now that the cause of the water seepage has been resolved, it’s time to apply Boysen Plexibond. Here is a summary of the steps on how to do this.
Boysen Plexibond Application
Step 1: Surface Preparation
Clean your surface. It should be free from dust, dirt, oil, grease, and any loose grit or mortar. Then, dampen the entire area. This will help keep your Plexibond layer from drying too fast causing it to crack and break.
Step 2: Boysen Plexibond and Fiberglass Matting
Prepare your Boysen Plexibond mixture by slowly mixing 6.5 kg cement to 4 liters Plexibond.
Apply 3 to 6 coats by brush for a smooth finish or 2 to 3 coats with a textured roller for a textured finish.
After the second coat, while the Plexibond mixture you applied is still wet, place fiberglass matting on areas susceptible to cracking or movement like joints and corners. Make sure the Plexibond coating and the matting are completely dry before applying the next coats.
When all the coats have been applied, let the area dry for a day.
Step 3: Bond Coat and Concrete Topping
After the drying period, apply one coat of just pure Boysen Plexibond straight from the can. While this bond coat layer is still tacky or sticky, apply a mortar or concrete topping.
Step 4: Paint
For paint, I recommend Boysen Acqua Epoxy as it can be used on concrete floors such as roof decks. With excellent durability, Acqua Epoxy is solvent-, chemical-, and stain-resistant. It has good gloss retention and UV resistance as well.
Find a more detailed step-by-step guide to applying Boysen Plexibond here. This guide is also available in Filipino here.
Hope this is helpful to you!
Your painting partner,
Lettie
Need advice? Paint TechTalk with Lettie is here for you. Comment your painting question below or send an email to ask@myboysen.com.
