Boysen’s vision has always been to serve the Filipino paint consumers. We ensure that every step we take benefits the very people that make us the number one paint. But for our painters and homeowners to continuously swear by our products, they must first understand clearly what a Boysen product can do.

We’ve written an article about Boysen Plexibond and how it turns your home waterproof, and we’re giving it another round in the spotlight. Since it’s been raining nonstop, we’ve been receiving inquiries about Boysen Plexibond on our Facebook page. We thought another article would help you understand more of what Plexibond is and what it isn’t.

In this article, we’ve round up some frequently asked questions about our featured Boysen product and made an infographic to answer each one.

Here are six important dos and don’ts when using Boysen Plexibond:

Boysen Plexibond DOs and DON'Ts

To recall our previous post, Boysen Plexibond is a specially formulated water-based acrylic polymer designed for mixing with Portland cement. We’ve had several inquiries about this and to give emphasis, note that you can’t use it on its own. A 4 Liter can must be mixed adequately with a 6.5 to 7.5 kg cement, this will serve as the solution to your water leakage problems. Use it on roof decks and firewalls provided that there is no existing paint or tiles.

Although the mixture works firmly on its own, we recommend you to apply your choice of topcoat for maximum durability and added protection. Choose from the wide-range of Boysen products to ensure quality and compatibility. Click here to find your paint. It is also advisable to use Boysen Plexibond on the positive-side of the wall or the side where the water pressure comes from.

DON’T apply Boysen Plexibond over a previously painted surface. Since it is a mixture of acrylic polymer and cement, it weighs heavier than a usual coating. To serve its purpose for a long time, it needs a bare and sturdy surface to adhere to. Scrape off the existing paint and prepare the surface properly before applying Plexibond to ensure a leak-proof paint job. Another popular question is whether or not you can use it on swimming pools – the answer is a BIG NO. Although it is a waterproofing system, you might want to reconsider using Plexibond on submerged areas such as pools and ponds due to the subjectivity of its use and exposure.

Learn more about this product and how you can prepare this cementitious waterproofing system through this instructional video:


Know better! Consult with waterproofing experts or contractors if you are not certain about your painting project. Research about your floor plan and the history of the area you will be working on to guarantee a waterproof success!

Browse the rest of our product highlights to know a little bit more about the Boysen quality. For tips and suggestions, call (02) 363-9738 local 417 to 418 during office hours or write an email to

Jess Convocar

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.


  1. Avatar

    Is Boysen Plexibond applicable on the interior side of wall? Exterior side is not accessible. If this is not applicable on the interior side, can you please have recommendations what to use?

    Thank you

    • Annie H Adlawan

      BOYSEN Plexibond and its waterproofing feature will continue to be effective as long as the paint is intact and there are no major cracks present in the substrate.

  2. Avatar

    Mi did not mix it with cement and directly applied it on a surface

    • Annie H Adlawan

      Hope you got the email reply sent to you last week. Just in case you didn’t, here’s the reply.

      BOYSEN Plexibond was formulated to be mixed with cement prior to application. 6.5 to 7.5 kg of cement is to be mixed to 4 Liters of BOYSEN Plexibond.

      For your project, may we know where the product was applied to (ex: roofdeck or firewall)?

    • Annie H Adlawan

      A team member sent you a reply last July 13. I hope you received it. Just in case you didn’t, here’s the reply:

      BOYSEN Plexibond was formulated to be mixed with cement prior to application. 6.5 to 7.5 kg of Portland Cement is to be mixed to 4 Liters of BOYSEN Plexibond.

      Please refer to the following links for the product details and instructions of the product:
      1. Instructional video:
      2. Product overview:

  3. Avatar

    Hi. he is asking the other way.Its tiles over dried plexibond. Not plexibond over tiles.

  4. Avatar

    Can i put tiles on top of plexibond after drying it for one day? Thank you.

    • Annie H Adlawan

      Regarding your inquiry, BOYSEN Plexibond was formulated for use on bare concrete surfaces. It cannot be applied on top of tiles.

      If you have immediate technical concerns, apart from our blog, you may also reach us at (02) 8363-9738 local 416 to 418. This is our Technical Service Department and we’ll do our best to be of service. Our office hours are from 8:00 am to 5:00 pm Monday to Saturday.

      • Annie H Adlawan

        BOYSEN Plexibond is a positive pressure waterproofing system formulated to be applied on bare concrete walls. We do not recommend applying this on or between metal substrates.

        If you have immediate technical concerns, apart from our social media accounts, you can reach us at (02) 8363-9738 local 416 to 418. You can also text us at 0918-913-6000. These numbers are for our Technical Service Department who will do their best to be of service. Our office hours are from 8:00 am to 5:00 pm Monday to Saturday.

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