Self-expanding PU seal, self-adhesive

Self-expanding PU seal, self-adhesive – compressed in a roll, expands several times in thickness, permanently elastic, airtight, strong self-adhesive polyurethane seal on one side. Suitable for sealing and insulating joints of various building structures, including window and door openings, facade joints and cracks (joints between concrete elements), special profile roof coverings and structures and other uneven and uneven building surfaces for noise, vibration, air, heat and moisture insulation. Also for sealing cable penetrations and in log house construction in corner structures and between logs and in window and door openings instead of sealing foams. Thickness and width of the seal according to the customer’s request

Properties. Sound-insulating and elastic. Underside reinforced with adhesive tape backed by fiberglass mesh. Expands through diffusion, forming a weatherproof seal. Minimizes the risk of mold and rot on contact surfaces. UV-resistant and allows joints to breathe

Applications:

⇒ Acoustic sound insulation between modules (wall, ceiling or floor modules) or in irregular joints between modules and other surfaces

⇒ Installation of noise and vibration insulation (e.g. ventilation and air exchange devices)

⇒ Noise and vibration insulation for portable devices

⇒ Joints between window and door frames and supporting structures (including window and door openings, windows in high-rise buildings)

⇒ Joints between concrete elements

⇒ Roof elements

⇒ For sealing wooden and log houses

Installation:

⇒ Surfaces to be sealed/connected must be clean, dry, and square

⇒ It is recommended to select the seal dimensions according to the data provided below to achieve the required joint tightness. Possible structural displacements should also be taken into account

⇒ 2-4mm joints – 12mm thick seals (expanded)

⇒ 3-4mm joints – 15mm thick seals (expanded)

⇒ 3-7mm joints – 20mm thick seals (expanded)

⇒ 5-10mm joints – 25-30mm thick seals (expanded

⇒ 7-12mm joints – 40mm thick gaskets (expanded)

⇒ The gasket must be cut approximately 1cm per meter longer than the joint length, do not use the first and last 1cm of the gasket roll (they must be cut from the end)

⇒ Remove the protective paper from the gasket adhesive and install the gasket on the best possible surface, if necessary, you can use a putty knife to ensure that the gasket is well attached

⇒ The gasket is installed approximately 2-3 mm from the leading edge of the joint

⇒ Do not install/stuff the gasket in corners, but cut the gasket through in the corners and press the ends together at right angles, the remaining part is pressed into the corner

⇒ When continuing the seal, the ends must be pressed together; overlapping of seals should be avoided

⇒ The ideal installation temperature is between +5 and +30 °C. Store the gasket at room temperature

⇒ Do not clean with pressure or strongly acidic solutions!

⇒ At lower temperatures, a hot air gun can be used after installation if necessary to accelerate (too) slow expansion

Sealing strip dimensions Length 25000mm, width 140mm. Thickness 3mm

Colour. Dark grey

Material Open-pored expanding polyurethane foam, impregnated with modified acrylic dispersion, added flame retardant fillers, plasticizer-free

Storage. Guaranteed shelf life 2 years from date of production, stored in a dry and cool place in the original packaging at temperatures from +1 °C to +25 °C.

Quantity per roll: 10m with a thickness of 15mm, 8m with a thickness of 20mm, 10m with a thickness of 15mm, 5.6m with a thickness of 25-30mm, 4.3m with a thickness of 40mm

Self-expanding PU seal (self-adhesive), data:

⇒ Sealing 50/80/120 kg/m³

⇒ Weight approx. 0.45/0.78kg

⇒ Water density BG2 (˃300 Pa, DIN 18542)

⇒ Air tightness BG2 (DIN 18542)

⇒ Fire resistance class E (EN 13501)

⇒ Temperature resistance -40 °C to +90 °C

⇒ VOC content (VOC) low (EN ISO 16000)