Soudatight SP

Air- and vapour tight membrane

Soudatight SP is a sprayable airtight liquid membrane. This product allows for a very easy, fast and economical application on larger surface areas and connections in between those surfaces (floor to wall, wall to ceiling, etc). Soudatight SP forms an elastic, air- and vapour tight membrane after drying and is an ideal basis for paint or plaster. Combine with Soudatight LQ for optimal results. Soudatight SP can be applied with a professional airless spraying tools, such as an airless gun connected to either a plunger or a membrane pump.

Open technical data sheet

Shown product

Soudatight SP Black 10kg

Featured properties

Air- and vapour tight
Stays elastic after curing and very sustainable
Forms a seamless membrane
Very good adhesion on many porous materials
Good adhesion on slightly moist substrates
Good adhesion on slightly dusty substrates
Can be painted, plastered or taped after drying
Meets GEV EMICODE EC-1 PLUS: very low emission
Passive House certified

Assets

Main image

Technical data sheet

TDS Soudal, Soudatight SP, English

Applications

For air- and vapour tight finishing of wall-floor connections, wall-ceiling connections, wall-wall connections, surfaces (no roof applications) and window connections (inside inner leaf (reveal area)).

Instructions

Shake or stir well before use. Soudatight SP is applied directly onto the surface using airless or air-assisted spray equipment. The choice of spraying equipment, pressure, gun and spray tip depends on the application. Apply the airtightness liquid paste undiluted and evenly in several layers (at least 2) on the substrate to a layer thickness of minimum 1mm and maximum 3mm. For the best possible coverage, the product is applied the second time under a different angle. It is recommended to apply the 2nd layer only after skin formation occurs at the first layer. The application thickness must be measured (wet) using a wet film comb. For window applications, ensure that the airtightness paste forms a seamless membrane of at least 3mm on the window frame, over the flexible foam to ± 5cm on the reveal area of the structural work. The use of masking tape (on the window frame) is recommended. This should, however, be removed shortly after the application of Soudatight SP, before curing. For wall connections, ensure that the airtightness paste forms a seamless membrane of ±15 cm on both surfaces.