Butylver standard

Primary sealant for high-quality insulation glass units

Butylver Standard, Premium PIB-Based Primary Sealant for High-Quality Insulation Glass Units

Butylver Standard is a primary sealant that serves as the first barrier for internal insulation (Butyl) in insulating glass systems. Made from polyisobutylene (PIB), it is a single-component, solvent-free solution designed to seal spacer edges effectively, preventing moisture ingress and gas escape. Renowned for its high stability, extensive compatibility, and versatility across various IGU configurations, Butylver also holds CEKAL certification.

Outstanding features
Certificates and Accreditations
Compliance with international standards

Outstanding features

Exceptional resistance to water vapor and gases, ensuring long-term protection.
Strong adhesion to glass and spacers, promoting reliable sealing.
Superior UV resistance and color stability in outdoor settings.
Zero shrinkage, maintaining structural integrity over time.
Very low thermal conductivity (0.2 W/mK, EN 10077-2) for enhanced energy efficiency.
Offers high shear resistance to prevent glass panes from sliding during handling after the sealing process in IGU manufacturing.
Minimizes cold-flow movement towards visible window areas, ensuring a clean and visually appealing finish.

Certificates and Accreditations

Butylver is approved by:

Applus+ / Spain
UNI / Italy
Cekal / France
RAL 520 / Germany
IGCC-IGMA / North America

Compliance with international standards

Butylver fulfils requirements of the following International Standards:

* EN 1279-2 (Insulating Glass Unit - Moisture Penetration requirements)
* EN 1279-3 (Insulating Glass Unit - Gas Leakage Rate and Gas Concentration requirements)
* EN 1279-4 (Insulating Glass Unit - Physical attributes of edge seal components)
* EN 15804 (EPD - Environmental Product Declaration)

* ASTM E2189-10 (Resistance to Fogging in Insulating Glass)
* ASTM E2190-10 (Insulating Glass Unit Performance)

Application guidelines

Before application, it's crucial to thoroughly clean and dry the surfaces, ensuring they're free of any dust or grease. Heating the Butylver sealant to temperatures between 120°C to 150°C is essential prior to its application using extruders. This meticulous preparation process is vital for maximizing the sealant's adhesion and performance, thereby ensuring a secure and long-lasting seal in insulating glass systems.

For technical support and further information about our insulating glass solutions, please contact our professionals.

Packaging Format

Packaging options include carton cylinders, drums, and pre-extruded ribbons, designed to meet various applicator needs.

In Cylinders:
1 Kg. (Ø 99.6 mm), 2 Kg. (Ø 130 mm),
2.5 Kg. (Ø 143 mm) and 7 Kg. (Ø 190 mm).

As tapes:
Ø 1.7 mm (boxes 22 rolls, 55 m/each).
3.0 × 0.6 mm (boxes 92 rolls, 30 m/each).

Drums of 200 Kg

Shelf life & Storage

Butylver has a shelf life of 12 months when stored in its original containers. For optimal performance, it is recommended to store it in dry and cool rooms with temperatures maintained between +10 °C and +30 °C.