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Regular price $249.00 AUD
Regular price Sale price $249.00 AUD
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The RTT - Protective Top Coat is the ultimate UV protective, heat reflective and power-saving waterproof membrane. It is a water-based and 100% acrylic protective coating. This Top Coat protects your roof from leaks, and extreme weather conditions and reduces the internal temperature which minimised the cooling demand and saves power. 

Pair this Protective Top Coat with our RTT - Waterproof Sealant and create the ultimate dual-layer waterproofing membrane!


Apply by Brush, Roller or Paint Sprayer. 

It is basically like painting with the difference that you are building up a thick waterproof membrane. Open the bucket and you are ready to go. Close the lid and you can use the product for future projects. 

Save money on contractors and Do it Yourself!

Popular Uses

– Concrete and unglazed terracotta roof tiles

– Metal roof surfaces, including Colorbond

– Concrete tilt slab buildings

– Fibro cement sheeting

– Cement rendered surfaces

– Brick and block construction


Please refer to the Specific Project for step-by-step instructions.

General Instruction

1. Best applied early morning or mid-afternoon in summer (avoid the intense sun when applying).

2. Because our products are water-based, you must avoid solvents like Petrols, thinners, diesel etc.

3. To avoid bubbling and non-curing, DO NOT apply products when there’s dew, cold wind or rain forecasted within 24 hours.

4. Allow 24h curing time before applying the next coat.

5. Curing time depends on temperature, humidity and airflow. Best 20°C or more. The typical curing time is 3-7 days.


At a recomended usage of 0.6L/sqm the products will cover:

- 15L Bucket -> 25sqm,

- 4L Bucket -> 6.5sqm.


Apply a minimum final membrane thickness of 1,5-2,0mm. It should require 2-3 heavy coats.


Apply a minimum final membrane thickness of 1.0-1,5mm. It should require 2 heavy coats.

Safety Features

- Water-Based

- UV-stable

- Eco-friendly

- Safe for you, your family, pets and plants

-No solvents or VOC (volatile organic compounds)

- Non-flammable

- Usable indoors and outdoors


The Top Coat and the Primer are cleaned with water and soap. 

Use our “RTT Sealant Cleaner” to remove any spillage, drips or splashes of the RTTSealant - Ultimate Seamless Waterproof Membrane”.

Remove any masking tape while the products are still slightly wet.

Shipping & Returns

We ship our Products throughout Australia and New Zealand. 

Free Shipping applied to orders above $149.00 AUD.


Shipping cost:

15L Bucket: $30 AUD

4L Bucket: $20 AUD


If you have larger orders please contact to obtain a quote.

Expected delivery time:  3-5 Business days.

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DIY is not an option for you?

We work with accredited contractors and take on large commercial projects.

Contact us on or use the Contact form and let's discuss your project!

  • Free Shipping

    We provide free shipping on all orders from $299.00

  • Hassle-Free Exchanges

    Not happy with the product or received the wrong product? No worries. Contact us at and we will do our best to find the best solution for you.

    With us you have a 100% Satisfaction guarantee!