Summer has just started and I’m not liking it. With the heat index peaking by the day, I’m secretly wishing for the rain to come sooner. But along with the rainy season comes many troubles. One of which is water leakage. What a terrifying thought. No worries though, I have found the best product that will help me face the wet season weather-ready.

Let me introduce you to the product that could help prevent future troubles.

Boysen Plexibond is a specially formulated water-based acrylic polymer designed for mixing with Portland cement. The mixture will serve as the solution to your water leakage problems. Because of its cementitious waterproofing system, it enhances the appearance of light building materials and prolongs its service life. If you are looking for a product that will help you lessen your stress from leaks this coming rainy season, then we suggest you look this way and read on.

How to use Boysen Plexibond

First, clean the surface thoroughly before painting. Read these posts on how to properly prepare old or new surfaces before you get started.

Wet the area that is directly exposed to the sun to let the steam off. As you wait for the surface to dry, proceed to preparing your mixture. Maybe turn on some music to improve your productivity.

Slowly mix 6.5-7.5 kilograms of sifted cement to a 4L gallon of Boysen Plexibond and then constantly stir the mixture to prevent lumping until it’s ready for application. Once everything’s set, you can start.

For vertical surfaces

Apply 3 coatings of Boysen Plexibond mixture using a textured roller if you prefer an orange peel finish and a plain roller if not. Allow 2-hour intervals between coatings.

For horizontal surfaces

For floors and other horizontal surfaces such as roof decks, parapets, canopies, and edges, apply 5 coatings. Allow 2-hour intervals between coatings.

Note that the cementitious coating can only cover hairline cracks but will not bridge gaps and active structural cracks. If you find such major damages, repair immediately using suitable sealants or call a professional.

Technical Tip
  1. Reinforce joints, corners, cracks, and areas that are prone to movement with a strip of fiberglass matting. It acts as the reinforcing membrane that gives support to flexible coatings such as the Boysen Plexibond.
  2. To use, put on the matting immediately after the second coat while the mixture is still wet, and let the matting stick to the mixture. Wait for it to completely dry before applying the succeeding coatings.
  3. To prevent future damages, wait for a day before applying a bond coat by brushing Boysen Plexibond straight from the can prior to laying out mortar topping.

For maximum durability, the application of topcoat is recommended. Boysen offers a wide range of products that is suitable as a topcoat to Boysen Plexibond.

Choose your preferred paint from the products above and do your magic. Remember to wait for a day before application.

Lastly, make sure that the air ventilation is of best condition and you’re wearing protective gears. Now, go ahead and paint away! For more technical questions, visit or call (02) 363-9738 local 417 to 418.

If you prefer watching, check out this video to know more:


Jess is a copywriter who brushes up on her paint knowledge daily. Together with Boysen professionals, she makes the technical stuff easier to digest. When she’s not writing, she searches the internet for the latest dessert bar.

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