Product Data Sheet Safety Data Sheet Show all documents

SikaMembran® Universal

Vapour/waterproofing membrane for facades - low vapour permeability

SikaMembran® Universal is an EPDM sheet membrane with a high vapour diffusion resistance (s_d value 62 m) and is thus applicable on both the warm (high vapour pressure) and the cold (low vapour pressure) side of the construction under most climatic conditions. The SikaMembran® system is a high-performance vapour control system comprising of various EPDM sheet membranes providing vapour control layers and waterproof barriers for curtain walls. They are suitable for most climatic conditions in combination with the appropriate adhesive.

Highly flexible waterproofing and vapour control system
Fast, easy and secure application even in corners
Provided with CE-mark according to EN 13984: 2011
Meet fire retardant requirements of EN 13501-1 Class E under free suspension
No additional mechanical fixing necessary
Membrane pre-treatment free
Suitable for uneven substrates (blowholes in concrete), leveling of substrate by adhesive
Suited to site conditions
Durable bond and barrier/seal
Ozone- and UV-resistant

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Product Data Sheet Safety Data Sheet Show all documents

PRODUCT BENEFITS

Highly flexible waterproofing and vapour control system
Fast, easy and secure application even in corners
Provided with CE-mark according to EN 13984: 2011
Meet fire retardant requirements of EN 13501-1 Class E under free suspension
No additional mechanical fixing necessary
Membrane pre-treatment free
Suitable for uneven substrates (blowholes in concrete), leveling of substrate by adhesive
Suited to site conditions
Durable bond and barrier/seal
Ozone- and UV-resistant

Usage

The flexible SikaMembran® sheets, installed between structure and incorporated units (e.g. facade elements, windows, etc.) using SikaBond® TF plus N adhesive, provide a secure and durable vapour barrier and waterproof seal at junctions between building elements mainly in curtain wall facades but also in ventilated facades and window installations.
This product is suitable for experienced professional users only. Test with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.

Packaging

Length [m / roll]	25
Width of rolls [mm]	100, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 1200, 1400

Product Details

Typical Product Data

Chemical base		Elastic EPDM - Butyl modified
Colour		Black
Mass per unit area		0.8 kg/m²
Thickness		0.6 mm
Equivalent air layer thickness s_d	s_d value	62 m
Elongation at break (ISO 37)		350 %
Application temperature		5 ─ 40 °C
Tensile strength (ISO 37)		5.5 MPa
Tear propagation resistance (CQP045-1 / ISO 34)		8 N/mm
Ozone resistance (DIN 1431-1)	200 pphm, 40 °C, 20 % Elongation, 168 h	No cracks
Service temperature		-40 ─ 90 °C
Shelf life		18 months ^A

CQP = Corporate Quality Procedure

^A) stored in dry conditions between 5 and 30 °C and protected from direct sunlight

Application

Application Information

Surface Preparation

Prior the bonding process ensure that substrates are sound, clean, dry, free from dust, grease, oil and loose particles.

Application

Apply SikaBond® TF plus N adhesive to the corresponding structure or components (nozzle diameter approx. 8 mm).
By using a clean spatula, spread the adhesive bead to approx. 4 ─ 5 cm width and 1 mm thickness.
Install the SikaMembran® Universal sheet tension-free and in a way that movement of the connected building parts can be accommodated without damaging the membrane. Press the membrane sheet on the adhesive by a plastic roller. The membrane must be fully bonded over a width of 4 cm. Where overlaps are required ensure at least an overlap of 5 cm.
The membrane might be re-adjusted during a period of 30 minutes after installation.

Application Limits

SikaMembran® Universal is not resistant to mineral oils, petroleum, benzene, fuel and toluene etc.
The bond line of the membrane must not be in permanent contact with water.