Adhesives and Sealants

THE CHALLENGE: Finding solutions to the challenge that many different resin systems are used to adhere to or seal various substrates that can flow undesirably, lack strong adhesion, cloud the system, or build heat.

THE SOLUTION:
Rheology control, reinforcement, flow improvement, stabilization – the key functions of silica and silanes are versatile and highly flexible. Evonik’s Silica/Silane System provides matching solutions for countless applications.

THE SMART EFFECT:
Silica and silanes from one supplier plus expert support for tailor-made solutions help the adhesives and sealants industry to meet all performance goals.

Adhesion Promotion

Bonding materials together is often simpler and more effective than fastening them mechanically. Silanes for adhesion promotion make this possible.

Crosslinking

Silanes can be used as crosslinkers and co-crosslinkers to permanently bond materials together. Among other things, they ensure heat resistance and a stable bond.

Drying

Special products like the vinylsilane Dynasylan® VTMO work as moisture scavengers in adhesive and sealant formulations to eliminate unwanted moisture quickly and efficiently.

Polymer modification

Specialty silanes can be used to produce silane-modified polymer adhesives and sealants (SMPs). They impart properties to the polymer such as good adhesion to different substrates, good crosslinking, excellent mechanical strength and temperature resistance.

Reinforcement

In adhesives and sealants, silanes can significantly enhance the final formulation. By coupling the fillers with the polymers, the mechanical properties of the cured formulations increase significantly, and the resistance and tightness of these systems are also significantly increased.

Rheology Modification

Silanes from Evonik can improve the flow properties of adhesives and sealants, making them easier to manufacture and handle. They also enable formulation optimization, such as higher filling grades.

Explore more applications for adhesives and sealants