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 if the order is placed before 2:00 PM.

Clever Shield trade prices with multi-buy discounts available on most products.

Bulk Discount

Trade prices with multi-buy discounts available on most products.

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

Phone Orders Welcome

Lines Open: 9am - 5pm, Monday - Friday for orders and technical support T: 01268 472358

Newton HydroBond 402-CCSM

Size: 20m x 1m
Sale price£329.99 inc.VAT


HydroBond 402-CCSM is a high performance membrane for the external waterproofing of below-ground foundation structures, basements, water holding tanks, culverts and tunnel bases. Pliable and durable, the membrane negates the requirements for a smooth blinding and protection boards when used as a ground level radon DPM.

A composite of LDPE and a non-woven geotextile fleece, the membrane has excellent crack-bridging capabilities at places where cracks occur within the concrete. When pre-applied before the concrete, the wet concrete is absorbed into the fleece, integrally bonding it to the membrane. This results in a high-strength bond with exceptional peel adhesion qualities, preventing water migration between the concrete and the membrane, even when damaged.

HydroBond 402-CCSM can also be post-applied to the wall surface, and can be used alongside other Newton products to provide a coordinated and combined approach to the waterproofing of the whole structure that includes protection against water penetrating through construction joints, through and around service entries and to movement joints.

  • Full mechanical bond to the concrete prevents water migration between membrane and structure
  • Very flexible – Resistant to movement and fissures in substrates
  • Unique pre-installed dual component (chemical fusion bond) adhesive laps at membrane selvedge
  • As a continuous Type A, externally applied waterproofing membrane and radon barrier to earth-retained structures
  • Below slab DPM and Radon DPM without the need for smooth blinding and protection


  • Concrete blinding
  • Compacted type 1 hardcore
  • Compacted sand

The following can be placed above the blinding or hardcore prior to the installation of 402-CCSM:


  • Existing structure
  • Secant or contiguous concrete piles
  • Metal sheet piles
  • Diaphragm walls
  • King post wall
  • Sufficiently stable ground such as clay or chalk
  • Temporary timber shuttering/formwork
Technical Data
Installed Performance Results
Service temperature -40ºC to +100ºC
Adhesion to concrete – Pre-applied 0.55 N/mm²
Adhesion to concrete – Post-applied 0.55 N/mm²
Lateral watertightness – Pre-applied (28 day test) 500 kPa
Lateral watertightness – Post-applied (7 & 28 day test) 120 kPa
Elongation at break (Machine) 29.3%
Elongation at break (Traverse) 53.3%
Tensile strength (Machine) 684 N/50 mm
Tensile strength (Traverse) 477 N/50 mm

Watertightness – 60 kPa for 24h

Watertightness – 400 kPa for 72h Watertight
Resistance to static loading – 20 kg load Watertight
Resistance to impact – AI plate – 200 mm drop Watertight
Resistance to impact – EPS panel – 700 mm drop Watertight
Joint seam strength – 80mm adhered overlap 423 N/50 mm
Resistance to tearing – Nail shank – Machine direction 252 N
Resistance to tearing – Nail shank – Across 306 N

Durability against chemicals – 23°C for 12 weeks


Durability against chemicals – 60 kPa for 28 days


Durability against thermal ageing – 70ºC for 12 weeks


Durability against thermal ageing – 60 kPa for 24 hours


Compatibility with Bitumen – 70ºC / 28 days


Compatibility with Bitumen – 60 kPa / 24 hours


Water vapour diffusion resistance – Sd value

365 m

Water vapour diffusion resistance – μ value

301653 μ

Water vapour diffusion resistance

1825 MNs/g

Radon gas diffusion coefficient

0.39 x 10-12 m2/s-1

Resistance to fire Euroclass E
Product Data

Code: 402-CSS-M

Packaging: Roll: 20.0m x 1.0m (402-20) / 20.0m x 2.0m (402-40)

Colour: White and Blue

Area: 20m² / 40m²


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