DIY Balcony & Deck Waterproofing
Liquid Membrane™️
An Easy Solution Made to Last
If your deck or balcony is leaking, SEMCO Works Liquid Membrane™️ is the perfect waterproofing product to avoid expensive and lengthy repairs.
Seal leaks and prevent future water damage with an advanced formula that creates a continuous, long-lasting watertight barrier you can apply straight over your balcony tiles, wooden decks, and many other substrates.
Liquid Membrane™️ Balcony Waterproofing Applications
Ready to be applied over 15+ external substrates, Liquid Membrane™️ is suitable for a wide range of deck and balcony surfaces. Seal your existing surface material to extend its lifespan, or waterproof old substrates before resurfacing. Here are the applications of Liquid Membrane to repair leaky balconies and waterproof outdoor decking:
- Seal any cracks with a seamless and durable watertight barrier.
- Waterproof your tiles with direct application. There’s no need to remove leaky tiles, making Liquid Membrane a cost-effective solution for fixing water damage.
- Waterproof timber decks, concrete decks, villaboard, bricks and more.
- Refresh the colour of your decks and balconies with the Liquid Membrane™️ colour range.
About Our Liquid Waterproofing for Decks and Balconies
DIY Application in One Day
SEMCO Works Liquid Membrane™️ has a quick and easy application process. In just 2-3 coats, it can be applied as a semi-clear or coloured sealer straight over your leaking balcony or deck. With a 45-minute drying time and full curing in a week, it’s the fastest way to solve your waterproofing problems.
Multipurpose Formula
Liquid Membrane™️ ticks all the boxes. Its waterbased, hybrid elastomer blend provides excellent crack bridging performance anti-fracture and waterproofing protection — making it an easy choice compared to rubber and silicone-based membranes.
Advanced Flexibility
Liquid Membrane™️ has up to 1300% elongation — which means it can stretch up to 13 times its original length! This flexibility beats out almost any other product on the market, making it the best long-term option to prevent leaking even as your building naturally moves over time.
Superior Coverage
Compared to other products, Liquid Membrane™️ has excellent coverage. A little goes a long way for affordable professional-grade waterproofing. Each litre provides 2.65m2 of coverage at 2 coats, or $13.50 per m2 based on 10L bucket.
FAQ
How many litres of liquid waterproofing will I need for my balcony or deck?
The 1L bucket covers 2-3m2 at the required 2 coats. A 4L bucket covers 10-15m2, and the 10L bucket provides 25-20m2 of coverage.
How many coats will I need?
Liquid Membrane™ is applied in 2 coats at 0.75mm per coat. Required total thickness is 1mm for non submerged applications.
After applying the first coat, wait until you can walk on the surface and not get any residue on your shoe or feet, or cannot leave a fingerprint impression. Apply the second coat.
You can use additional SEMCO Liquid Membrane™ to seal any defects.
What materials can I apply Liquid Membrane™ on?
Apply to 20+ substrates including concrete, wood, stone, tiles, interior & exterior cladding, metal, aluminum, plaster, villaboard, MDF and bricks. If unsure, contact our team.
Will I need to make other repairs to my balcony or deck?
Liquid Membrane™ can seal and protect an existing surface without the need for further repair work. However, you should evaluate whether there is any structural damage or an underlying problem with your drainage systems, which in some cases would require more extensive attention or resurfacing.
Ask a surface contractor or waterproofing expert to conduct an inspection if you’re unsure. For more detailed recommendations, our customer support team is available.
Either way, Liquid Membrane™ is still an essential step to ensure lasting waterproofing of pre-existing and newly constructed surfaces.
Can I use Liquid Membrane as a finish coat for trafficable surfaces?
Yes, if you would like to leave SEMCO Liquid Membrane™️ as a finishing coat and trafficable surface, it must be sealed with our Titan Shield Gloss sealer.
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