The production of both insulating glass and curtain walls incorporates bonding and sealing steps that use multi-component adhesives. The success of these bonding and sealing steps depends on proper mixing and accurate, on-ratio dispensing of the adhesive components.

Whenever and wherever high-viscosity adhesives and sealants need to be mixed, the choices have been clear cut: either the classic vertical double planetary mixer or the proven double-arm sigma blade mixer have been the mixers of choice when the product viscosity rises past the hundreds of thousands of centipoise, and well into the millions of centipoise.