Next Day Free Delivery to London and Most of the UK

Next Day Delivery

Next day free and express delivery is available for most products subject to order value and if the order is placed before 2:00 PM.

Secure Payment

Bulk Discount

Discover unbeatable prices with our "Price Match Promise" and additional Multi-buy Discounts on many products.

Coating Applicators & Support  Experienced UK coating applicators for liquid coatings and industrial repairs. Qualified technical support Tel: 01268 472358

Applicators & Contractors

Specialist Coating Applicators, Basement Contractors and Qualified technical support. T: 01268 472358

Newton HydroCoat Tanking Slurry

Save £11.22 inc.VAT

Size: 20KG
Color: Grey
Sale price£40.38 inc.VAT Regular price£51.60 inc.VAT


A single-component, mineral coating that is simple to mix and easy to apply. Unlike conventional slurries, HydroCoat Tanking Slurry includes advanced crystallising and capillary-blocking chemicals that also enhance the bond of the coating to the substrate.

HydroCoat Tanking Slurry can be applied both internally and externally to a variety of substrates to form an effective barrier against positive and negative hydrostatic pressure, as well as non-pressurised moisture in the ground for use in damp-proofing applications.

Applied in two coats, the 2mm coating is waterproof against water pressure of up to 7 bar. In addition to increasing the bond, the penetrating crystallising chemicals react with water and the calcium hydroxide within the concrete to actively seal developing micro-cracks.

This makes HydroSeal / HydroTank 104 particularly useful as a means of isolating moisture within pile caps, ring beams and kicker joints to internal walls.

Key Benefits
  • Easy to mix, single-component slurry coating
  • Brush, trowel or spray applied
  • 2 mm slurry coat is fully waterproof to 7 bar
  • Crystallising agents penetrate deep into the substrate to enhance bond and seal capillaries and small, developing cracks
  • Permanent waterproofing of a wide variety of
  • Resists positive and negative water pressure and so is suitable for internal and external use
  • Resistant to salt contamination in masonry
  • WRAS approved for use with potable water
  • Suitable for application to damp substrate
  • Can be part-mixed
  • Vapour permeable
Typical Applications
  • Basements & cellars
  • Retaining walls of concrete, brick and block
  • Tanks, pools, ponds & planters
Suitable Substrate

Concrete with reinforcement to BS EN 1992 (Eurocode 2) with crack mitigation to 0.3mm

Product Data

Code: HSS-20

Packaging: 20 kg bucket (single component bag within bucket)

Colour: Grey

Application Rate as Two Coat Tanking Slurry: 2.8 Kg/m2

Technical Data
Features  Result
Form Powder
Colour Grey
Pack Size 20 Kg
Shelf Life 12 Months
Pot Life @ 20ºC 30 Minutes
Application Rate as Two Coat Tanking Slurry 2.8 Kg/m2
Application Temperature +5 ºC to + 35 ºC
Service Temperature -15 ºC to + 180 ºC
Odour Odourless
VOC Content  0%


 Cured Performance (Typical Values)  Result
Slurry Tanking Thickness in One Coat 2mm
Elongation Not elastometric
Flexural Strength (28 Days) 7 N/mm2
Compressive Strength (28 Days) 20 N/mm2
Hardened Density (28 Days) 1850 Kg/m²
Resistance to Water Pressure ≥ 7 Bar
Reaction to Fire Classification EUROCLASS F
UV-Resistance Stable but may discolour

Payment & Security

Payment methods

Apple Pay Google Pay Maestro Mastercard PayPal Shop Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


Clever Shield Coatings Safe Checkout Guaranteed

You may also be interested in

Trade Customer? 

Get all the benefits of being a trade customer by signing up for an account

  • Monthly Trade Discount Codes
  • Dedicated technical support team
  • Certified hands-on training courses

Recently viewed