Nastro sigillante autoespandente EXP BG1

EXP BG1 Self-Expanding Sealing Tape is a self-expanding sealing tape made from open-cell polyurethane foam impregnated with an acrylic dispersion. It ensures the gap is perfectly filled and provides thermal insulation between the window/door frame and the building structure; it can be exposed directly to driving rain (600 Pa) and direct UV radiation. Its slow post-installation expansion ensures that it remains compressed between the frame and the wall surface, preventing the passage of wind, draughts, rain and noise. It dampens any vibrations, accommodates thermal expansion and protects against the ingress of atmospheric particulates. Available in various sizes (width x depth), it adapts to gaps of different thicknesses in the joints within the building envelope between windows, sub-frames and masonry.

Instructions for use

Depending on the thickness of the joint to be sealed between the masonry and the frame (external side), choose the size of the tape so that, once post-expansion has taken place, the volume can increase by approximately 20 per cent compared to the original size, ensuring that the tape remains constantly compressed within the joints.
Unroll the tape and discard the first few centimetres of each roll; remove the paper from the self-adhesive side for approximately 20 cm and apply the tape to the edge of the clean, dry and compact joint, at a distance of 2 mm from the edge towards the inside.
When applying to vertical walls, start from the bottom; when applying horizontally, avoid water pooling. Where rolls join, position the adjacent strips so that there is an overlap of approximately 2 cm.

Storage

EXP BG1 self-expanding sealing tape, when kept in its original, unopened packaging and stored away from sources of heat in a dry place at a temperature between +5 and +35 °C, has a shelf life of at least 18 months.