Frequently Asked Questions | Liquid Rubber
Frequently Asked Questions | Liquid Rubber
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How do I know which Liquid Rubber product to purchase for my job?

Refer to our DIY section and Product Information Sheets. If you are still unsure, please call us on 0508 Seal it (732 548) or email us on

How do I prep for applying Liquid Rubber?

Your surface must be clean and dry before applying Liquid Rubber products. It must be free from dust, dirt, oils, varnishs, surface flaking, poorly bonded or glossy paint, sealers, salts or any other substance which will create a barrier and disrupt Liquid Rubber from adhering properly. Liquid Rubber can then be directly applied just like a paint using a brush, roller or spray gun.

What do I buy to apply the products with?

Liquid Rubber can be applied with any normal paint brush or roller. You can also apply our Waterproof Sealant and Smooth Topcoat (but not our Textured Topoat) with a hydraulic piston sprayer. We hire out Spray Machines which can be found on our Shop section.

What can Liquid Rubber be applied to?

Liquid Rubber can be applied to virtually anything that is not oil based including concrete, wood, brick, masonary, most metals (iron, steel, galvanised steel, aluminium), butynol, shingles, tiles, difficult roof materials including EPDM, TPO, most PVC, SBS, APP, BURs, propylene, polystyrene, fiberglass and OSB. If you are unsure, please contact us to discuss your requirments.

Is there anything that Liquid Rubber doesn’t adhere to?

Liquid Rubber products can not be applied to silicon, certain smooth or shiny surfaces eg plastic piping and varnishes or oil based paints.

What is Torch down membrane?

A torch down membrane is a waterproofing membrane used on a flat or nearly flat roof. It is distinguished by seams or joins running parallel.

What if I have an asbestos roof?

Liquid Rubber Waterproof sealant can be used to encapsulate the roof. You can’t water blast the roof however we recommend spraying a moss/mould killer and leaving for 1 month before hosing off with light pressure from a garden hose. Then spray the liquid rubber over the roof before applying the smooth sealant for UV stability.

How much will I need?

Please refer to our coverage guidelines on our product pages under DIY.

How long does Liquid Rubber take to dry?

At 20 deg C Liquid Rubber Takes 24 hours to fully dry. Please don’t try to peel it off the substrate for 3-4 weeks.

What if Liquid Rubber gets wet before it has fully cured?

Remove any surface ponding and let it cure before applying another coat or the smooth coating. Apply Waterproof sealant to any affected areas that may have peeled.

How often do I need to re-apply Liquid Rubber?

Degradation will vary depending on wear and tear of the surface, exposure to UV rays and other corrosive substances. We recommend reapplying when the product visually starts to look as though it is eroding or after ten years.

Can I re-apply Liquid Rubber straight over the top of existing Liquid Rubber?

Yes you can. So long as the surface is clean it will bond to itself.

What if I want to get rid of Liquid Rubber I have already applied?

Although not ideal use Methylated spirits and rags to remove.

Do you have technical data sheets?

We have Product Information Sheets for our products which provide general information about each product and how to use it. This should be sufficient for the home DIY’r. We also have Material Safety Data Sheets (MSDS) which prvide more technical product information.

What colours do your products come in?

Our Liquid Rubber Waterproof Sealant only comes in Black. Our Textured Topcoat and Smooth Topcoat come in a range of standard colours. We can supply colours that are not in our standard range but there is a 20L minimum purchase.

Can I paint over the liquid rubber with normal paint to get the colour finish I want?

Yes you can. Although we recommend our smooth sealant, Water based roof paints can be used. Elastomeric paints work better.

Do you sell test pots?

The smallest size we sell is a 1L pottle.

Do I need to wear protective clothing? Do I need a mask/gloves/overalls?

As Liquid Rubber is safe for the user, no protective clothing is required from a safety perspective. However, as Liquid Rubber is difficult to remove from clothing we recommend wearing old clothing or overalls and gloves. This is purely for convenience and aesthetic reasons. Baby oil is useful for removing Liquid Rubber from skin.

What do I do with left over product? How do I store? How long does it last?

Left over product can be stored in a cool dark place with the lid on. Keeping the paint brush in the product insde the pail (assuming it fits without sticking out) may avoid a skin forming on the top of the product. Left over product generally lasts 3-6 months.

How do I wash brushes, hands, clothes after use? Can I use them again or will I need to throw away?

Liquid Rubber is water based so can be removed from skin and brushes with any form of liquid soap and water before the product cures (dries). If Liquid Rubber has dried on your skin Baby Oil will help to remove it. Liquid Rubber does not come off clothing easily once it has cured.

Are the fumes dangerous?

No. However if you are in an unventilated area, we do recommend a mask

How do I discard left over product?

Liquid Rubber is water based, non-toxic, solvent free and contains no VOC’s (volatile organic compounds) so is environmentally safe.

Can I return a product if it has been unopened?

Please refer to our Returns policy under Delivery & Returns section.

Do you guarantee your product?

Liquid Rubber products have been developed over 15 years and are available in 26 countries around the world. We stand by our product and pride ourselves on the quality and performance of our product. However, in the unlikely event that you are not satisfied with the performance of your Liquid Rubber product, we will do our best to replace it or give you your money back.

What security do you have for credit card payments?

We use Swipe HQ. Swipe complies with global Payment Card Industry Data Security Standards (PCI PTS 3.x). Data is SSL encrypted and securely transferred to their McAfee monitored secure servers.

Where are your products made?

We import our products from Canada and Australia.