ME407
Butyl Tape NT
ME407 is a cold, self-adhesive membrane for vapour, air & watertight joints between exterior wall sections & load-bearing structures.
Usage/Purpose
ME407 is used to make various joints and exterior wall sections internally vapour and airtight, externally watertight, and to create pressure equalisation in the exterior wall structure.
- UV resistant film/backing
- The adhesive layer remains flexible at high and extremely low temperatures and does not extrude
- Does not cause staining on the substrate, so the adhesive layer does not dry out
- Bonds to virtually all existing substrates
- Does not require preheating before or during application
- Provides permanent grip
- Very high vapour tightness, hence watertight and airtight also
Usage Guidelines
- Bonding surfaces must be clean, and free from grease and other contaminants that could affect a sound bond.
- Bonding surfaces must be stable and free from loose material.
- On highly porous substrates (concrete, cellular concrete, plasterwork, etc.) as well as butyl tape overlaps, we advise priming with ME901 or ME902 Butyl & Bitumen Primer.
- To determine the width dimension of the illbruck ME407 Butyl Tape NT, the following general rule applies: the width of the joint plus 100 mm bonding surface (50 mm either side).
- To determine the total length required, the following general rule applies: when joined together, ME407 Butyl Tape NT should have an overlap of at least 50 mm.
Description
ME407 is a membrane made up of a laminate film with a pure butyl adhesive layer, lined with siliconised paper.
Packaging
Roll Width (mm) | Roll Thickness (mm) | Rolls/Box |
---|---|---|
50 | 0.8 | 12 |
100 | 0.8 | 6 |
150 | 0.8 | 4 |
200 | 0.8 | 3 |
250 | 0.8 | 2 |
300 | 0.8 | 2 |
350 | 0.8 | 1 |
Technical data
Property | Standards | Result |
---|---|---|
Basic Bonding Layer | Modified butyl rubber adhesive | |
Film (Backing Material) | Cross laminated ALU/ HDPE film | |
Protective Film | PE film, siliconised | |
Fire Class | DIN 4102 | B2 (normally flammable) |
UV Weather Resistance | Excellent | |
Water Vapour Permeability | 4108-3 | Water vapour tight (sd value ≥500 m) |
Vapour Diffusion Resistance | EN1931 Method B | μ > 1,000,000 |
Staining on Building Materials | Compatible with many substrates | |
Temperature Resistance | -20°C to +80°C | |
Application Temperature | +5°C to +40°C | |
Storage | Rolls must be stored lying flat and level, in dry and dust-free conditions between +5°C and +35°C | |
Shelf Life | 2 years when stored as recommended in original unopened packaging |