Self-adhesive, cold applied waterproof membrane, manufactured from high-density polyethylene (HDPE) film and rubber modified bitumen adhesive.

Features and benefits:

  • Provides high performance protection from water ingress and soluble salts (such as sulphates and chlorides).
  • The advanced backing film provides improved tear and tensile strength.
  • Easy and quick to apply.
  • Flexible, and provides good bonding to the substrate.
  • Non-hazardous.
  • Good overlap integrity due to bitumen-to-bitumen joint using zip strip.
  • Can provide resistance for up to 6 m of water when fully supported.


Can be used as a damp-proof or waterproof membrane. Suitable for:

  • All aspects of waterproofing where a Grade 3 environment is required as part of a dual system recommended in BS 8102: 2009.
  • Suspended/ podium slab applications.

The membrane should be covered with a cementitious screed or similar protective layer as soon as possible after it has been installed – consult manufacturer for details.

Standard product features

Size (w x l):

1.05 x 19.05 m.


34 kg.


1.5 mm.

Technical characteristics:

  • Adhesion to primed concrete: 3 N/mm.
  • Tensile strength: 4.2 N/mm.
  • Water vapour transmission rate: 0.3 g/m²/day.
  • Vapour resistance: 600 MNs/g.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-65-50/304 Bitumen sheets

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying



PUDLO Waterproof Systems & Cemfree Zero-Cement Concrete, part of the DB Group Ltd


+44 (0)1954 780687

Product reference

PUDLO PS Premsil 100

Accessories/ Other requirements

[Not required]
[PS Premsil Primer]
[PS Termination Strap]
For interfacing between PS Premsil 100 and PUDLO Membrane BW.
[Surestop Adhesive]
[Surestop BWB]
Sealing construction joints.
[Surestop SM]
[Surestop Steel Cage Mesh]
[Surestop SWB]
Sealing construction joints.
[Surestop Voidformer]

Manufacturer details

Wellington Way,
Bourn Airfield,
Cambridgeshire, CB23 2TQ
Tel +44 (0)1954 780687
NBS Plus