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Newton HydroCoat System

The Newton HydroCoat System is an internal Type A waterproofing solution for projects that requires an internally applied membrane to resist water ingress.

When waterproofing existing structures to BS 8102:2022, there is often a requirement for an internal waterproof membrane. The range of liquid applied membranes and reinforcement products in the Newton HydroCoat System therefore offer a choice of third-party certified solutions, utilising advanced products that are also quick and easy to apply.

Internal Waterproofing (Type A)

Type A Waterproofing

British Standard 8102:2022 defines ‘Type A’ waterproofing as “barrier protection”. This barrier protection can be applied to either the external or internal surface of a structure to resist any water that is trying to enter the building.

Internal ‘Type A’ membranes are often the products that are referred to when people talk about the process of “tanking” a basement to protect it from water. Waterproofing barrier membranes that can be applied to the internal ‘negative’ side of the structure include a variety of liquid-applied membranes or slurries that can be installed either by spray machine, trowel, brush, or by roller directly onto the internal wall surface.

These membranes must actively hold back any ingressing water, so it is crucial to select the correct product and to ensure that the substrate is prepared correctly.

HydroCoat Membranes


HydroCoat 103 2K

  • Durable cementitious membrane
  • Sprayable
  • Capable of resisting extremely high water pressure
  • Excellent adhesion


HydroCoat 105 1K

  • Cement-based waterproofing slurry
  • Resists 10 bar positive and negative water pressure
  • Environmentally friendly
  • Quick drying times


HydroCoat 107 Elastic 2K

  • Flexible cementitious membrane
  • BDA approved
  • Tough, flexible coating
  • Excellent adhesion
HydroCoat Tanking Slurry
HydroCoat Tanking Slurry

  • Easy to mix, single-component slurry coating
  • Brush, trowel or spray applied
  • 2 mm slurry coat is fully waterproof to 7 bar
  • Permanent waterproofing of a wide variety of


HydroCoat 104 Super

  • Crystalline waterproofing of concrete
  • Blocks the capillaries in the concrete
  • Cost effective alternative to physical membrane
  • Easy application

Ancillary Products


HydroCoat 203-RM

  • Cement-based structural mortar
  • High bond strength
  • Reinforced and extremely durable
  • Sets in 10 minutes



HydroCoat 313-WP

  • Fast-setting leak sealing compound
  • Sets in just 2 minutes
  • Exceptional durability
  • Easy to use



HydroCoat 903 Primer

  • Primer for cementitious membranes
  • Can be applied to damp/wet concrete
  • Extremely quick to apply
  • Very quick curing



HydroCoat 905-CM

  • Water-based curing compound
  • Ready-mixed and ready to apply
  • Easy to alternative to traditional curing aids
  • Does not discolour the concrete



HydroCoat LiquaBond

  • Primer for cementitious systems
  • Also a high-performance admixture
  • Provides excellent adhesion
  • Bonds to a wide range of substrates



HydroCoat 912-RT

  • Reinforcement tape for cracks, joints and changes in direction
  • Formation of covered movement joints
  • Reinforces liquid membranes over static joints


HydroSeal Monoflex

HydroCoat Monoflex

  • Waterproofs construction joints that are subject to extreme movement
  • Easy and quick to install and repair
  • Resistant to high water pressure (greater than 4.0 bar)


HydroSeal Monoflex Adhesive

HydroCoat Monoflex Adhesive

  • No primer required
  • Excellent adhesion to most building materials
  • Bonds to damp substrates


Combination Waterproofing

For more robust waterproofing protection, BS 8102:2022 recommends that waterproofing design specialists are tasked to determine the use of  combined protection in various forms where in a single system:

  • the assessed risks are deemed to be high; or
  • the consequences of failure to achieve the required internal environment are deemed too high.

With this in mind, the possible combinations of waterproofing are:

  • Type A, B & C
  • Type A & B
  • Type A & C
  • Type B & C or
  • Type A & A

Where a combination is being considered, systems should have different performance characteristics to mitigate the risk of failure due to a common cause. The compatibility of the different protection types should also be assessed in order to minimise risk and negate the need for remedial measures.

Newton HydroCoat can therefore be combined with our external Type A Newton HydroBond System, our Type B Newton HydroTank System and/or our Type C Newton CDM System.

The Newton Technical Team will work with you to design the right combination of structural waterproofing methods to ensure the end user’s desired internal environment is achieved, in accordance with current legislation and best practice.

Professional waterproofing designers should always consider using more than one type of waterproofing to provide enhanced protection to the structure and achieve the necessary environmental grade.

For more information on the Newton HydroCoat System and to find the products best suited to your project requirements, call our Technical Team on 01732 360 095 or email tech@newtonwaterproofing.co.uk.

Speak to our friendly, expert team

Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.

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