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Comp-B Continuation Membrane and WebFast A2 Adhesive - Self-adhesive Continuation Membrane

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Radmat Building Products Ltd

Comp-B Continuation Membrane is a self-adhesive butylene membrane consisting of a butyl rubber adhesive compound specially designed and developed to be classified according to BS EN 13501-1:2018.

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Application

Intended for use in the External Wall construction, as a link between the primary waterproofing system and facade DPM to create a weathertight seal for the whole building envelope.

The limited-combustibility rating of Comp-B ensures compliance for use in locations where other membranes may not be practical to install.

Description

Comp-B Continuation Membrane is a self-adhesive butylene membrane consisting of a butyl rubber adhesive compound specially designed and developed to be classified according to BS EN 13501-1:2018.


Comp-B Self-Adhesive Continuation Membrane is protected by a reinforced aluminium film and is resistant to ageing and UV-rays. It is highly adhesive, even at low temperatures, to all common building materials. It has been designed for the construction field, in particular, for those building where high performances, in terms of reaction to fire, are needed.


Features and benefits:

  • Fire classified: B,s1-d0 in accordance with BS EN 13501-1:2018.
  • Tear-resistant.
  • Cold applied.
  • Excellent adhesion at low temperatures.
  • Waterproof.
  • Excellent heat stability.
  • Resistant to ageing and to UV-rays.
  • No oil migration.
  • Solvent-free.

General information

Color

Silver

Grey

Finish

Film

Material

Aluminium

Butyl

Shape

Rectangle

Length

10000 mm

Width

1000 mm

Height

1 mm

Guidance for specification option:

Thickness.

Uniclass

Pr_25_57_65_60 Plastics sheetsPrimary
Pr_35_90_33_22 Door and window weatherstrips and seals

CAWS

J42/395 Air and vapour control layer

J41/395 Air and vapour control layer

J31/330 Air and vapour control layer

Specification data - Plastics sheets

Material

Self-adhesive butylene membrane protected by a reinforced aluminium film.

Purpose

Continuation membrane.

Performance characteristics

-

Tensile strength (minimum)

To EN 12311-1, Machine direction (MD): 185 N/50mm.
To EN 12311-1, Cross machine direction (CD): 200 N/50mm.

Tear resistance

To ATSM D 2979, probe tack: 7 N.

Elongation to break

To EN 12311-1, Machine direction (MD): 10%.
To EN 12311-1, Cross machine direction (CD): 20%.

Water vapour resistance (minimum)

To UNI EN 1931, μ = 2.720.000.

Fire performance

To EN 13501-1, Euroclass B,s1-d0.

Environmental performance requirements

-

Volatile organic compounds (VOC) emissions level (maximum)

Total Volatile Organic Compound emissions (TVOC): 30 µg/m³.

Guidance for specification option:

To ISO 16000-6.

Form

Reinforced.

Physical properties

-

Colour

Grey/ silver.

Weight (minimum)

Manufacturer's standard.

Dimensions

-

Thickness (minimum)

1 mm.

Width (minimum)

1 m.

Roll length (minimum)

10 m.

Technical characteristics, other

To ASTM D 1000, 180° Peel adhesion: 20 N/cm.
Application temperature range: 0–40°C.

Sustainability data

Material

Aluminium

Butyl

Literature

PDS WebFast A2 Adhesive

PDS WebFast A2 Adhesive

PDS Comp-B Continuation Membrane

PDS Comp-B Continuation Membrane

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