Waterproofing membranes

If required, the surface must be primed in advance.

The tile adhesive should be applied to the full surface using a notch trowel (4 or 6 mm grooves).

Adhere the wedi Subliner Dry onto the adhesive. Here, air pockets and creases must be avoided.

Place the sheets joint to joint or with overlapping joints (the sheets must overlap by approx. 5 – 10 cm). Any air pockets and creases should be removed.

Remove any excess adhesive.

If wedi sealing membranes are butt jointed with wedi Subliner Dry, they are bonded to one another and sealed at the joint with wedi 620 sealant. wedi 620 is applied to the full surface of the sealing membrane without bubbles and with correct coverage. The sealant is applied to both sides of the sealing membrane joint area with a fine-toothed trowel or similar, approx. 10 mm above the edge of the sealing tape (or moulded part or sealing membrane).

The sealing tape is then adhered into the fresh adhesive bed (e.g with a trowel, float or pressure roller). Material which escapes is removed smoothly with a trowel.

If wedi Subliner Dry is applied with an overlap, the overlap areas of the sheets are bonded to one another and sealed with wedi 620 sealant. wedi 620 sealant is applied to the full surface of the sealing membrane without bubbles and with good coverage. The sealant is applied to the overlap area of the sealing membrane with a fine-toothed trowel or similar, in the width of the overlap (min. 5 cm).

The joint area of the overlapping sealing membrane is then pressed into the fresh adhesive bed (e.g with a trowel, float or pressure roller). Material which escapes is removed smoothly with a trowel.

wedi Tools sealing corners and wedi Tools sealing gaiters are used for internal and external corners as well as pipe penetrations.

wedi 620 sealant is applied to the full surface of the sealing membrane without bubbles and with good coverage using a fine-notched trowel or similar, in the size of the moulded part. The moulded part is then pressed into the fresh adhesive bed (e.g with a trowel, float or pressure roller). Material which escapes is removed smoothly with a trowel.

Once the tile adhesive has hardened, the finishing covering can be laid on walls and floors.

Note: For areas requiring general building inspection approval, only system-tested components may be used. These can be found in the test report or approval document. When planning and executing sealing work for interior spaces, the national standards and directives must be observed.