RTT Waterproof Sealant Is the original Liquid Rubber DIY and is a high-quality, water-based, and non-toxic hybrid liquid rubber that works by creating a watertight seal to keep moisture away from cracks, vents, holes, and joints. It can be applied with a brush, roller, or paint sprayer and stretches 1000% with 95% recovery.
We will beat any prices by 5%.
Designed for extreme weather, our product is durable and flexible enough to seal almost anything. With our sealant, you'll never have to worry about water damage again!
What makes our sealant the top choice?
- Highly flexible and durable. This ultra-tough waterproof sealant is highly flexible once cured. The UV-stable formulation will withstand high temps and sun exposure, leaving you with a long-lasting product that’ll still provide years of protection after installation.
- Easy to apply. Just roll, brush or spray over your concrete, brick, or stone and you will create a waterproof barrier — perfect for DIY's who want to do the job themselves and save money on contractors.
- Safe to use. This sealant contains no solvents or VOCs, which makes it completely safe for you, your family, pets and plants. It can be used both indoors and outdoors without the toxic effects of traditional solvent-based sealants.
Don't let water damage ruin your property. Trust in the reliability and effectiveness of our liquid rubber waterproof sealant. Order yours today and enjoy the peace of mind that comes with knowing your home or business is protected!
No primer needed! Adheres to all surfaces effortlessly!
This sealant is highly flexible and works on almost any surface. Just paint or spray it on, and watch as it instantly conforms to the shape it's applied to. Once dry, it forms a seamless, flexible waterproof barrier that resists cracking and aging.
Let customers speak for us
Had my order delivered perfectly and quickly to my remote little town.
great product
Tape was easy to apply and has stopped my leak.
Started on this persistently leaking valley gutter on an old cottage a year ago with some RTT sealant, after all else failed with recurring leaks. Prepared and applied and instantly a waterproof cottage for the year, followed this year by a recoating with RTT sealant and a roof paint. Hoping not to go up there again. So far so good.
Very prompt delivery just as an added bonus.
Perfect easy to work with it’s potable there is no adverse taste and it’s odourless
Owners really helpful assisting with questions and application steps.
Waterproof Sealant | Original Liquid Rubber DIY - Seal leaks quick & easy for Roofs Tanks Ponds Fencing & Walls
Only ordered 25mm wide so not used on large holes etc. good for cracks or covering error screw holes, joins in guttering etc. Not too bulky so can use between sheets. Good adhesion. Must coat with waterproof substance, RTT or small can of Leak Seal, also a rubber coating if you don’t have RTT waterproof sealant yet.
Have not applied yet
It's okay
Waterproof Sealant | Liquid Rubber | - Seal any leaks quick and easy. Ideal for Roofs, Tanks, Ponds, Walls and more.
I had a couple of small holes appear in my galvanized gutter and instead of replacing the whole section I thought about trying to use RTT sealant which I had seen advertised. I cleaned up the inside of gutter as used RTT as directed. I am pleased to say that the gutter has been sealed and I don't have any drips now and it was a lot cheaper solution than replacing the gutter. Hopefully it will last a few years. I would certainly recommend using it.
I have not finished yet but I am hoping it will be extremely affective
Works well and was easy to apply. Looks extremely well sealed, leaving good peace of mind. Good after sales service too.
The product was very easy to apply with a brush and has stop the leak.
What color is it?
The sealant starts as dark brown but cures to a black finish.
Note: When the Waterproof Sealant is submerged in water, it may appear slightly brown, but once fully dry, it turns deep black.
Can it be painted over?
Yes, but for best results, apply one coat of our Primer/Sealer on top of the sealant first. This will ensure optimal adhesion and a smooth finish.
Best Performance
Stretches 1800%
Unbeatable durability and longevity. With 1800% elongation and 95% recovery, it resists cracking and aging
Easy To Apply
Effortlessly apply with a brush or roller - no primer required. Adheres to virtually any surface.
Potable Water Certified
Safe for you and the environment. Our product is non-toxic, eco-friendly, and certified for use in potable water systems. Perfect for water tanks and fish ponds.
FAQ
Application
You only need to cover joints, screws, cracks, skylights, vents etc. Encapsulating them with RTT - GEO Textile.
A good metal roof does not need to be covered with Waterproof Sealant. Only the rusty areas.
If it got surface rust - use RTT Rust inhibitor primer without the Rubber. Apply the primer to the entire surface.
For metal roofs and rendered concrete apply 1.5L/m².
The products will cover:
- 15L Bucket covers ≈ 10m²
- 10L Bucket covers ≈ 7m²
- 4L Bucket covers ≈ 2.5m²
- 2L Bucket covers ≈ 1.2m²
- 1L Bucket covers ≈ 0.6m²
- 0.5L Bucket covers ≈ 0.3m²
Concrete Surface:
For rough or uneven concrete apply a minimum of 2L/m2
Note: Apply a 2 Part Epoxy onto the surface first before applying the rubber to prevent bubbling.
- 15L Bucket covers ≈ 8m²
- 10L Bucket covers ≈ 5m²
- 4L Bucket covers ≈ 2m²
- 2L Bucket covers ≈ 0.9m²
- 1L Bucket covers ≈ 0.4m²
- 0.5L Bucket covers ≈ 0.2m²
Please refer to the Specific Project for Step-By-Step instructions.
Always apply RTT Waterproof Sealant to the water contacting side of the project. Apply by brush or roller up to 2mm thick per coat. Use ample product and work it into the surface and around protrusions so complete contact is achieved. RTT Geo Textile embedded into the product to repair areas with holes, cracks or joint movement. Apply a minimum of 2 coats to ensure a complete seal. After the final coat, RTT Quick Dry can be sprayed over the area to set the product (optional).
NOTE: DO NOT BRUSH OR ROLL OVER THE WET QUICK DRY SPRAY
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.
Metal roofs
- Concrete roofs,
- Box gutters
- Tanks and Throughs
- Planter boxes
- Retaining Walls
- Sheds
- Wooden or Metal decks
- Ponds
- and more....
Clean all surfaces free of dirt, oil, impurities and allow to dry. Water blast or wire brush any stubborn debris or rust. Prime all concrete surfaces with a quality 2 part epoxy.
For most applications, it is recommended to apply 2-3 coats for optimal waterproofing.
No, the surface must be dry before applying the sealant. Moisture can prevent proper adhesion and may cause the coating to fail.
Ensure the surface is thoroughly dry before application for the best results.
Yes, Liquid Rubber can be painted over. However, it's recommended to apply a Sealer before adding our Protective Top Coat or any other type of paint. This ensures proper adhesion and provides a smooth, durable surface for the paint to bond to.
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.
General Questions
Yes, Liquid Rubber Waterproof Sealant is UV resistant, making it suitable for outdoor use.
It won’t degrade or crack due to sun exposure, making it a long-lasting solution for roofs, decks, and other exposed surfaces.
- Liquid rubber is a safe and eco-friendly option for your DIY projects. It is water-based, which means it doesn't contain any harmful solvents or volatile organic compounds (VOCs).
- It is also UV-stable, meaning it won't break down or degrade when exposed to sunlight. This makes it safe for use both indoors and outdoors.
- Additionally, it is non-flammable and poses no risk to you, your family, pets, or plants.
- So, you can use it with peace of mind, knowing that it is safe for all.
- To keep it in the best condition possible, store it in a cool and dry place above 5°C and make sure it doesn't freeze.
- When you're not using it, be sure to keep the container tightly sealed. This will help the unused Liquid Rubber last longer.
- A pro tip to make it last even longer is to cover the unused material inside the container with plastic wrap or a seal.
TDS & SDS
Shipping & Returns
We ship our Products throughout Australia and New Zealand.
FREE SHIPPING APPLIED TO ALL AUSTRALIAN ORDERS
SHIPPING TO NEW ZEALAND CAN BE ARRANGED AT EXTRA COST
Expected shipment duration (within AUS): 3-8 Business days (Mon -Fri)
For larger orders, please contact us at shop@rttsealant.com or use the Contact form.
At RTT Sealant, we offer FREE SHIPPING on all orders within Australia. We understand that getting your items to you quickly is important, so we make every effort to process and ship your order as soon as possible.
Orders are typically processed within 1-2 business days and shipped via Australian Post / Transdirect / Sendle. Once your order has shipped, you will receive a shipping confirmation email with a tracking number.
Please note that we are not responsible for any delays caused by the shipping carrier. If you have not received your order within the estimated delivery time, please contact us at [email or phone number] and we will do our best to assist you.
Return Policy
We want you to be completely satisfied with your purchase from RTT Sealant. If for any reason you are not satisfied, you may return your items within 30 days of receipt for a full refund or exchange.
To initiate a return, please contact us at shop@rttsealant.com or use the Contact form to request a return label. Once we receive your returned items, we will process your refund or exchange as soon as possible.
Please note that all items must be returned in their original condition.
We do not accept returns of final sale items.
We will be responsible for the cost of return shipping.
If you received a damaged or defective item, please contact us immediately at shop@rttsealant.com and we will do our best to assist you.
Thank you for choosing RTT Sealant for your shopping needs! If you have any questions about our shipping or return policy, please contact us. We're here to help!
Refunds
We strive to serve our customers with the best products. Every single product that you choose is thoroughly inspected, checked for defects and packaged with utmost care. We do this to ensure that you fall in love with our products.
Sadly, there are times when we may not have the product(s) that you choose in stock or may face some issues with our inventory and quality check. In such cases, we may have to cancel your order. You will be intimated about it in advance so that you don’t have to worry unnecessarily about your order. If you have purchased via Online payment (not Cash on Delivery), then you will be refunded once our team confirms your request.
We carry out a thorough quality check before processing the ordered item. We take utmost care while packing the product. At the same time, we ensure that the packing is good such that the items won’t get damaged during transit. Please note that RTT Sealant is not liable for damages that are caused to the items during transit or transportation.
We will revise your returned product as soon as we receive it and if it follows the guidelines addressed above, we will proceed to issue a refund of your purchase. Your refund may take a couple of days to process but you will be notified when you receive your money.
Your Consent
By using our website, registering an account, or making a purchase, you hereby consent to our Return & Refund Policy and agree to its terms.
Contact Us
If, for any reason, You are not completely satisfied with any good or service that we provide, don’t hesitate to contact us and we will discuss any of the issues you are going through with our product.
- Via Email: shop@rttsealant.com
- Via Phone Number: 1300 636 272
- Via this Link: shop@rttsealant.com
- Via this Address: 1 Conway Court, 4211 Nerang, QLD
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