Liquid Rubber Coating UK

Liquid rubber coating uses liquid rubber to protect and waterproof

Liquid rubber coating has been on the market for years now, but recent technological advances have both improved and expanded the range of rubber coatings available. While traditionally liquid rubber has been applied as a rubber waterproofing paint for roofs, there are now products which allow the excellent waterproofing capabilities of liquid rubber coating to be applied to a much broader range of substrates.

Liquid rubber paint is heat, chemical, weather, and impact resistant, as well as being flexible. In this article we will outline the benefits and applications of liquid rubber coating products, as well as where to find them in the UK.

The top 6 benefits of liquid rubber coating

The reason for the continued success of liquid rubber coating is simple: in terms of waterproofing it outperforms the alternatives. This is why one of liquid rubber’s most important applications is flat roofing. The qualities that make liquid rubber coating the choice for waterproofing are:

  1. GREAT ADHESION – Liquid rubber paint can be applied to concrete, stone, metal, bitumen, EPDM, wood, PVC, metals, and zinc. It adheres fully to the substrate whatever the material, sealing the substrate and keeping corrosive elements away.
  2. NON-PERMEABLE – Liquid rubber paint creates an impermeable barrier between the substrate and the environment. They can withstand ponding water for flat roofs, or be used in overspill containment. They are waterproof, vapour tight, air and gas barriers.
  3. FLEXIBLE – Liquid rubber coating has an elongation capability of up to 900%. It can flex and stretch with a substrate through heating and cooling (from -40°C to 160°C) without damaging, unlike other coatings such as bitumen which are far more brittle.
  4. UV STABILITY – The coating stays flexible for longer and does not chalk, embrittle, or lose strength with exposure to UV radiation.
  5. CHEMICAL AND WEATHER RESISTANT – Rubber is chemically resistant to most corrosive chemicals, acids, alkalis, and solvents, both liquids and gases. Liquid rubber can protect a substrate from chemicals in tanks, as well as corrosive environments like factories or plants. The heat resistance, waterproofing, salt resistance, and UV stability mean liquid rubber is extremely weather-proof.
  6. ENVIRONMENTALLY FRIENDLY – Water based and VOC free, these products will not harm you or the water table.

Buy liquid rubber coating

Liquid rubber coating is available from suppliers across the UK, for all projects great and small. The easiest way to buy liquid rubber coating is online:

Isoflex Liquid Rubber Black 4.25 Litre
Isoflex Liquid Rubber
Isoflex Liquid Rubber – Membrane in liquid form
  • Color: Black
  • Volume: 4.25 Litre
  • Type: Single pack
  • Based on: Urethane elastomer
  • Suitable for: Virtually all roofing surfaces
  • Great elasticity

Aquaseal Liquid Roof 7kg, Set of 4 Slate Grey
Aquaseal Liquid Roof
Aquaseal Liquid Roof – Set of 4 – Waterproofing Liquid Membrane
  • Color: Slate Grey
  • Volume: 7 kg x4
  • Type: Single pack
  • Based on: polyurethane based
    Suitable for: Flat and pitched roofs; cement, concrete, brick, stone, metals, wood, tiles etc.
  • Retains flexibility even at low temperatures

Rempro Damp Proof Paint 5kg White
Rempro Damp Proof Paint
Rempro Damp Proof Paint – Damp Proof Membrane
  • Color: White
  • Volume: 5 kg
  • Type: Single pack
  • Based on: Styrene Butadiene Rubber, water-based
  • Suitable for: several applications including damp walls, floors and basement walls (internal and external)
  • excellent waterproofing properties

There are contractors up and down the country who provide liquid rubber installation services for roofing, waterproofing, and any other project you may have. If you wish to be connected with one of our partners, get in touch! Our experts are here to help, just use our free quote service to find the right coating solution for your needs.

Application method for a waterproof liquid rubber paint

One of the great benefits of liquid rubber coating is the ease of application. There are only three basic steps to a liquid rubber application. Whether spray, brush, trowel, or roller, the coating will adhere to almost every surface – concrete, stone, bitumen, EPDM, wood, PVC, metals, foam, tile, and zinc.

Step 1: Preparation

applying white liquid rubber coating as a rubber waterproofing paint for roofs

White liquid rubber coating reflects UV, keeping the substrate cooler

A properly prepared substrate is paramount to the optimal application and performance of a coating. In the case of liquid rubber coating the substrate needs to be clean, dry, free from grease, dust, and other particles. Power washing the area is recommended. Cracks in the surface should be repaired beforehand for the best waterproofing result.

Step 2: Application

Liquid rubber paint should not be applied in temperatures below 5°C, nor when rain is expected within 24 hours, so make sure to check the weather. The coating can be applied with a brush, trowel, roller, or spray, and is cold applied. The minimum layer thickness for a waterproof membrane is 2mm. When painting, the average coverage is 1L per m2, yielding a 1mm thickness. The coating is not applied in one thick coat but rather built up through layering.

Step 3: Curing

Once the liquid rubber coating is applied, it needs to cure. Though it is touch dry in only a few hours, it will take 48 to 72 hours for the coating to be fully cured and bonded to the substrate. After this point usual traffic and usage may resume.

An example: Rubber waterproofing paint for roofs

Because of the unique combination of versatility, flexibility, and high performance, there are many areas which can benefit from liquid rubber coating, including roofing, concrete sealing (and protecting steel reinforcement), environmental protection barriers, and waterproofing ponds, planters and basements.

The benefit of having a liquid rubber waterproofing paint for roofs installed is that there is limited down time, limited work hours, and so limited extra costs. The basic application process for waterproofing a flat roof might look as follows:

  1. Power wash the area to be coated and, once dry, clean the area of all debris and particulates.
  2. If there are cracks greater than 3mm use a joint filler or mastic to fill them in.
  3. At an expected coverage of 1L to 1m2, pour the desired amount of liquid rubber onto the roof, and spread across the area using a roller or brush. Once the roof is coated evenly, leave to dry.
  4. Once the first layer is touch dry, repeat the procedure for the second coat.
  5. Leave for 48 hours to cure fully.
5 replies
  1. Allan Stone
    Allan Stone says:

    Can this product be used for coating a concrete water tank (potable) if not what can you recommend please…The tank is below ground and subject to occasionAl very slight ground moment and hence hairline cracks

    • Coating Expert
      Coating Expert says:

      Dear Allan,

      We do not recommend a liquid rubber for coating a potable water tank. For this kind of application we recommend a heavy duty polymer coating which have been specially formulated for use with potable water – for example, Jotun produces an eco-epoxy for this purpose, and there are also a range of polyurethane and polyurea coatings that are food safe. Whatever you choose, make sure it conforms to local environmental standards for use underground.
      Best regards,

      Sofia –

    • Coating Expert
      Coating Expert says:

      Dear Kate,

      Thank you for asking about Liquid rubber coating. In order to best help you with your enquiry, please use our contact form, and let us know the details of your project. We will then send you an e-mail to help you further.

      Best regards,

  2. Margaret
    Margaret says:

    Can I use liquid rubber on my decking and can you get it in different colours. I am having a terrible problem with algae build up on the wood. If it is possible to do this can you recomend which one to use.



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