Sisalex 518
Moisture barrier and airtight layer
Four-layer barrier against damp and moisture.
- High sd value, more than 1500 m = absolutely airtight
- Moisture-resistant, well suited for e.g. swimming pools
- PE backing makes the membrane alkali-resistant
- Increased resistance to tears by nails
- Can be laid directly on cement-based building materials
Four-layer barrier against damp and moisture consisting of an aluminium and PE layer and a reinforcement consisting of heat-treated continuous filaments with a PP filling layer (100% polypropylene). Suitable for exhaust insulation.
Conditions for the twenty-year premium warranty include registering the building object and the Ampack products used. In addition, our products must be used as part of a system. For further details, please see our General Warranty Conditions.
| Article number | Description | Roll dimensions |
|---|---|---|
7640115536457 | Sisalex 518 | 1,5 m × 50 m = 75 m2 |
| Property | Value | Standard |
|---|---|---|
| Harmonised European Standard | EN 13984:2013 | |
| Product description | Typ A | EN 13984:2013 |
|
Mass per unit area |
175 g/m2 |
EN 1849-2 |
|
Straightness |
< 75 mm/10 m |
EN 1848-2 |
|
Fire behaviour |
E | EN 13 501-1 / EN ISO 11925-2 |
| Waterproofing | approved at 2 kPa | EN 1928, procedure A |
|
Water vapour permeability, sD value |
> 1'500 m | EN 1931 |
|
Maximum tensile strength longitudinal / transverse |
180 / 160 N |
EN 12 311-2, without support liner EN 13 859-1, Appendix A, with support liner |
|
Elongation longitudinal / transverse |
20 / 15 % |
EN 12 311-2, without support liner EN 13 859-1, Appendix A, with support liner |
|
Resistance to tearing (nail) longitudinal / transverse |
180 / 180 N |
EN 12 310-1 without support liner EN 13 859-1, Appendix B, with support liner |
| Visible defects | none | |
| Values after artificial ageing | ||
|
Water vapour permeability, sD value |
approved | EN 1296, 70°C / EN 1931 |
Technical data sheets
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Technical data sheet: Sisalex 518 | Technical data sheet: Sisalex 518, moisture barrier and airtight layer |
Declarations of performance
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Declaration of performance: Sisalex 518 | Declaration of performance: Sisalex 518 1,5 x 50 m, moisture barrier and airtight layer |
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Declaration of performance: Sisalex 518, V2 28.02.2017 | Declaration of performance: Sisalex 518 1,5 x 50 m, moisture barrier and airtight layer, V2 28.02.2017 |
Tendering texts
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Tendering text: Sisalex 518 | Tendering text: Sisalex 518, moisture barrier and airtight layer |
Product inserts
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Product insert: Sisalex 518 | Product insert: Sisalex 518 1.5 x 50 m, moisture barrier and airtight layer |
Product photos
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Product photo: Sisalex 518 | Product photo: Sisalex 518, moisture barrier and airtight layer |
Application photos
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Application photo: Sisalex 518 | Application photo: Sisalex 518, moisture barrier and airtight layer |
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Application photo: Sisalex 518 | Application photo: Sisalex 518, moisture barrier and airtight layer |
Apply the moisture barrier Sisalex 518 on the cold side of the thermal insulation with an overlap of 10 cm. Make sure that the printed side with aluminium faces you when applying the barrier. Fresh mortar, cement or other alkali-containing products have no effect on the product. Join the overlapping ends with Ampacoll BK 530 making sure that the strip is under the overlap and use Ampacoll INT or Ampacoll XT as additional protection. Used as vapour barrier, apply Sisalex 518 on the warm side. Make sure that the printed aluminium side faces you when applying the barrier. Use Ampacoll INT or Ampacoll XT to join the overlapping ends. In rooms that are subject to constant moisture we recommend double bonding with Ampacoll BK 530 and Ampacoll XT. Edges must be joined with Ampacoll BK 530 and secured with an edge strip. Porous, dusty or rough surfaces must be applied with Ampacoll Primax or Ampacoll Airmax. The liquid adhesive Ampacoll RA can also be used for edge connections. In cases of high humidity Ampacoll Superfix is recommended. Please note that one side of the material must be diffusive so that the adhesive can set. Only with this system will Sisalex 518 provide an absolute humidity barrier.
