Rubberised vs Acrylic Waterproofing: Which One is Better for Your Project?
When it comes to protecting your roof and walls from water damage, choosing the right waterproofing product is essential. Two of the most popular options in South Africa are rubberised waterproofing and acrylic waterproofing—but what’s the difference, and which one should you use?
At Build It DTM in Benoni, we supply both solutions and help customers pick the best product for their needs.
What is Rubberised Waterproofing?
Rubberised waterproofing is a thick, flexible coating made with rubber polymers. It forms a seamless, elastic barrier over surfaces and is commonly used for:
Roofs (flat or pitched)
Gutters
Concrete slabs
Balcony floors
Benefits:
Highly flexible – handles cracks and movement
Long-lasting performance
Excellent UV and weather resistance
Can be applied on metal, concrete, or cement using primer

Rubberised waterproofing is applied using a roller
What is Acrylic Waterproofing?
Acrylic waterproofing is a water-based coating that forms a durable barrier when it dries. It’s typically reinforced with membrane fabric and is great for:
Roofs and parapet walls
Pitched roofs
Window ledges and flashing
Benefits:
Easy to apply and recoat
Quick drying
UV resistant
Available in multiple colours

Acrylic waterproofing is applied with a membrane
| Feature | Rubberised Waterproofing | Acrylic Waterproofing |
|---|---|---|
| Flexibility | Very high | Moderate |
| Durability | Long-lasting (10+ years) | Medium (5–8 years with maintenance) |
| Surface Movement | Excellent crack-bridging | Limited – requires fabric membrane |
| Application Areas | Roofs, gutters,flat or pitched roofs | Small surfaces, Pitched roofs |
| Price Range | Higher upfront cost | More affordable |

Which Should You Choose?
Use Rubberised Waterproofing if:
You want long-term protection and flexibility
You’re waterproofing large or exposed areas that collects water
You need a heavy-duty coating that resists cracking and peeling
Use Acrylic Waterproofing if:
You’re doing a quick maintenance job or touch-up
You want a cost-effective, paintable option
- You are waterproofing a Roof that is slopped and does not hold water
📍 Buy Waterproofing Products from us
At Build It DTM in Benoni, we stock top-quality rubberised and acrylic waterproofing systems from trusted brands
(Flash Harry, SIKA, Duram, Home Seald ). Not sure which one is right for you? Let our experienced team help you find the perfect product based on your project.
Visit us at 19 Liverpool Road, Benoni or shop online at www.builditdtm.co.za. We also offer delivery and expert advice to get the job done right the first time.



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