High-Performance Silanes for Coatings, Sealants, and Adhesives

RUCOGRIP: High-Performance Silanes

At RUDOLF, we see silanes not just as raw materials, but as a key technology for modifying and bonding materials and maximizing their performance. Our organofunctional silanes act as adhesion promoters, crosslinkers, water repellents, coupling agents, or compatibilizers - depending on the requirements and industry.

Our RUCOGRIP products specifically improve adhesion, durability, and chemical resistance, support moisture regulation, and can even catalyze reactions to make them more efficient. With a broad portfolio ranging from aminosilanes to epoxy and methacryloxy silanes to specialized silanes, we offer solutions for applications that go far beyond the standard.

Silanes – The Bonding Bridge in Modern Coatings

Silane compounds are a key component of modern paints and coatings. They reliably improve adhesion to a wide variety of substrates - from metal and glass to plastics - and thus ensure resistant and durable coatings and surfaces.

There are two ways to use silanes: They can either be added directly to the binder or the finished coating, or they can be permanently incorporated into the binder using special
polymerization processes.

Thanks to their unique hybrid structure - a combination of inorganic and organic functionality - silanes act as a chemical bridge between the substrate and the coating. The inorganic side bonds with the OH groups of the substrate, while the organic side reacts with the binder. The result is a particularly strong and durable bond that can withstand even extreme mechanical and climatic stresses. Whether as a component of the formulation or as a separate primer, silanes create the basis for coatings with the highest performance.

Product Overview

Epoxy

Epoxy-functional silanes contain a glycidoxy-reactive organic group. They possess both organic and inorganic reactivity, enabling them to react with or bond to organic polymers and inorganic surfaces.

Amino

Aminosilanes are versatile coupling agents that improve adhesion, strength, and processability in a wide variety of materials, from glass and ceramics to metals.

Acryl

Specialty silanes containing a highly reactive acrylic group, are used especially to improve the mechanical and electrical properties of unsaturated polyesters and UV-cured systems.

Alkyl

A diverse range of silanes are often used as components in sol-gel formulations, pre-polymers, and cross-linkers, and some are often used as water repellents in masonry, concrete, and other building materials.

Sulfur

Sulfur functional silanes can react with the inorganic surface and organic polymers such as sulfur curable rubber and can be used for filler treatment to make fillers compatible with resins and elastomers such as epoxy, EPDM, SBR, and natural rubber.

Vinyl

Vinyl silanes are very suitable for crosslinking organic polymers. The resulting Si-O-Si crosslink sites are highly resistant to exposure to moisture, chemicals, and UV. Siloxane crosslinked bonds resist discoloration. Vinyl functional silanes may also be useful as a moisture scavenger in moisture-cure systems where longer shelf life is required.

Phenyl

Phenyl-functional silanes can be used to formulate and produce novel silicone polymers. These silanes can be reacted in the presence of catalysts such as alkaline, acid, and metal salt and can be converted to silicone polymers.

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