Liquid Rubber Coating – Waterproof & Flexible Protection

Watertight protection with liquid rubber coating

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 waterproof rubber paint for roofs, there are now products which allow the excellent waterproofing capabilities of rubber coating to be applied to a much broader range of substrates.

Rubber coating 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 paint products, as well as where to find them in the USA.

6 reasons to go for a 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 – The waterproof 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 – Rubber coatings create 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 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.

    waterproof rubber paint on black surface

    Liquid rubber coating is a watertight solution for many substrates.

  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.

Because of the unique combination of versatility, flexibility, and high performance, there are many areas which can benefit from liquid rubber, 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 coating installed is that there is limited down time, limited work hours, and so limited extra costs.

Buying liquid rubber coating in the US

Rubber coating is available from suppliers across the US, for all projects great and small. 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 buy rubber coating, browse through the buying options for liquid rubber below:

Liquid Rubber Waterproof Sealant Coating Black 5 Gallon
Liquid Rubber Waterproof Sealant Coating
  • Black
  • 5 Gallon
Liquid Rubber Foundation Sealant Basement Coating Black 5 Gallon
Liquid Rubber Foundation Sealant
  • Black
  • 5 Gallon
Flex Seal Spray Rubber Sealant Coating, Black 14-oz
Flex Seal Spray Rubber Sealant Coating
  • Black
  • 14 oz
Flex Seal Liquid Rubber in a Can, White 1 Gallon
Liquid Rubber in a Can Flex Seal Liquid
  • White
  • 1 Gallon
Rubberseal Liquid Rubber Waterproofing Coating White 1 Gallon
Rubberseal Liquid Rubber Waterproofing Product
  • White
  • 1 Gallon

If you would like 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.

The waterproof rubber paint process – preparation, application and curing

One of the great benefits of liquid rubber is the ease of application. There are only three basic steps to applying waterproof rubber paint. 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
    A properly prepared substrate is paramount to the optimal application and performance of a coating. In the case of liquid rubber 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 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 coating is not applied in one thick coat but rather built up through layering.
  • Step 3: Curing
    Once the liquid rubber 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.
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