Loading
Butyl rubber is best known for its very low permeability to water vapour and gases. This makes it the basis of the primary barrier in applications such as insulating glass units, roofing tapes and automotive seals. Yet the polymer itself is only one part of the formulation. Whether a sealant
A lower price per kilogram of butyl compound does not necessarily mean a lower tape production cost. At the same width and thickness, material consumption also depends on density. Once losses, actual dimensions and line operation are taken into account, the ranking of quotations may differ from a comparison of
Plasticizer migration is a problem whose importance can easily be underestimated when designing butyl tapes and sealing cords. Immediately after production, a compound may meet every quality-control requirement, exhibiting the required plasticity, surface tack, penetration and adhesion. Undesirable changes may only become apparent after weeks or months in storage, or
Moisture protection, long-term sealing performance and manufacturing consistency are critical considerations in photovoltaic module design. For selected PV constructions, butyl tape or polyisobutylene (PIB) sealing materials can provide an effective moisture-barrier or compressed sealing layer. However, specifying a butyl tape for photovoltaic production requires more than selecting a material based
How to Select a Release Liner for Butyl Tape A release liner protects the adhesive surface of butyl tape during production, storage and transport. It should then peel away easily and predictably during application. Its role, however, extends well beyond that of a disposable separator. The liner affects lamination, rewinding,
Butyl Compound for Strip and Tape Production – Why Is the Right Formulation So Important? The production of butyl rubber strips and tapes requires much more than selecting the right polymer. A butyl compound for strip and tape production must be designed with consideration for the raw material properties, processing
Receiving a TDS, a declaration of compliance or an ISO 9001 certificate is not enough. A reliable supplier qualification process should cover the material’s technical requirements, the actual application, the supplier’s quality management system, batch traceability, test methods, production trials and change-control requirements. For butyl compounds, it is particularly important
