Coperion is expert for processing systems for reactive sealants

Continuous Production with Coperion Technology

"Reactive sealants" are chemically hardening single component systems. The cross-linking of the substrate is initiated by exposure to humidity (RTV) and/or heat (HTV).

Coperion has already developed many processing systems for the production of reactive sealants. The core of these systems is the ZSK twin screw extruder, which ensures a reproducible reaction with high process stability at consistently high product quality without batch-to-batch variations.

Low bulk density and fluidizing raw materials (e.g. silica), are introduced via ZS-B side feeders. These are equipped with the patented Feed Enhancement Technology FET developed in-house by Coperion. The FET applies a vacuum in the ZS-B feeding zone by means of a porous, gas-permeable wall. Considerably improved feeding and flow rates are achieved, even for silica amounts above 10% of the overall formulation. Using the ZSK extruder, processing can take place without moisture, preventing unwanted cross-linking of RTV sealants (e.g. PUR sealants) in the process section.

Typical set-up for producing reactive sealant compounds

Comprehensive product range

Coperion twin screw extruder ZSK MvPLUS Screw elements


Coperion has comprehensive know-how in the design of the ZSK Mv PLUS twin screw extruder for the production of reactive sealant compounds. Numerous extruders have proven themselves in the market.

ZSK Mv PLUS Extruders
Coperion K-Tron single and twin screw feeders

Feeding Equipment

Delivering the right materials in the correct amount is critical to the production of reactive sealant compounds. Coperion K-Tron is expert in feeding equipment for reactive sealants processing and has comprehensive engineering expertise.

Coperion service technician


Coperion offers comprehensive service packages for the delivered machines and systems. With our maintenance services we ensure your system availability and check the efficient utilization of resources.

Comprehensive services

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