NEXLER Stick bituminous felt should be fixed using self-adhesive properties to EPS panels or other thermal insulation, to a primed concrete or sheet metal substrate. The bituminous felt can additionally be fixed mechanically. Application on concrete substrate should be carried out after the priming agent has completely dried (or cured). The final adhesion forces to the substrate in these cases are obtained after welding the next layer of bituminous felt onto the NEXLER Stick bituminous felt.
Surfaces to which the felt will be bonded must be dry. Once the roll has been unrolled, place it carefully in the space provided for it and cut off an appropriate section of the felt if necessary. Then remove the foil protecting the underside by pulling it simultaneously from both sides of the strip and at the same time pressing and levelling the surface of the felt after removing the foil.
NEXLER Stick bituminous felt can also be mechanically fixed together with or without thermal insulation to concrete, wood or sheet metal substrates. In that case the bituminous felt is fixed with mechanical connectors at the edge of the strip and then thermally activated at the overlaps. Maintain a bituminous felt overlap min. 8 cm wide along the length of the felt strip and an overlap min. 12 cm wide at the joint perpendicular to the length of the felt strip. The adhesive strength of the self-adhesive surface is optimal at ambient temperatures above 10°C. The best self-adhesive effect is achieved when welding the next layer of felt.
When carrying out vertical and horizontal detail work, the undersurface of the felt should be additionally heated to increase the adhesive strength. In areas that were folded vertically - cover with top-layer weldable bituminous felt in one working cycle. Details of substrate preparation and bituminous felt fixing are described in NEXLER Insulation Systems.

Before use, please read the application details in the product's Technical Data Sheet.

Documents for download

Declaration of Performance

Technical Data Sheet