Category overview

Adhesion Promoters / Bonding Agents

Based on 756 products - Last update on the Jul 8, 2025

Adhesion promoters appear as clear liquids that integrate invisibly into adhesive formulations or function as primers. Key features include ability to bond dissimilar materials, improved moisture resistance of adhesive interfaces, and enhanced long-term durability. Adhesion promoters are essential for plastic bonding, metal assembly, and outdoor applications. 

Common types include silanes, titanates providing, zirconates, phosphonates, and polymeric adhesion promoters. Recent innovations focus on water-dispersible versions reducing VOC content in adhesive formulations addressing environmental regulations and the development of more versatile promoters compatible with multiple substrate types.

Applications

Claims / benefits

Properties

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ORTEGOL® AP 100

by Evonik

ORTEGOL® AP 100 by Evonik is an adhesion promoter ideally suited to use in 2K PU systems. It provides excellent adhesion to metal, plastic surfaces and works well in both foamed and compact PU systems. It is ideally suited to use in EV battery potting applications. The technical requirements for such potting materials typically include efficient filling, high adhesion, low density, high mechanical stabilization and elastic properties. ORTEGOL® AP 100 can be formulated into the polyol component or dosed as a separate component prior to application and also it is long-term stable and does not adversely affect the shelf life of the formulation.
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BRB Silanil® 250

by BRB International BV

BRB Silanil® 250 by BRB International BV is 3-methacryloxypropyltrimethoxysilane. It is used as a crosslinker, coupling agent and adhesion promoter. It is used in acrylic type resins to improve adhesion and durability of adhesives. Recommended to keep in an amber container to avoid the sun light. It is used to graft onto polymer backbone during polymerization. BRB Silanil® 250 complies with REACH regulation.
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BRB Silanil® 258

by BRB International BV

BRB Silanil® 258 by BRB International BV is 3-glycidoxypropyltrimethoxysilane. It functions as a surface modifier, coupling agent, crosslinker, and adhesion promoter. It is intended for use with waterborne acrylic sealants and adhesives. It is compatible with polysulfide, urethane, and epoxies. Without the addition of fillers, additives, or pigments, it can be blended directly into resin. Integral blending can raise the material's hardness and elastic modulus. Recommended dosage of BRB Silanil® 258 is 0.2-2% by weight. Complies with REACH.
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Dynasylan® GLYMO

by Evonik

Dynasylan® GLYMO by Evonik acts as an adhesion promoter, crosslinking agent and/or surface modifier. It is a low viscosity bifunctional organosilane, 3-glycidyloxypropyltrimethoxysilane with a slight terpentine-like odor. It is an essential ingredient in sealants and adhesives, as a primer or additive. It can be used with epoxy, phenolic, PU, PVAC, acrylates and polysulfides. Provides improved mechanical properties like flexural strength, tensile strength, impact strength and modulus of elasticity. Offers improved moisture and corrosion resistance, improved electrical properties such as dielectric constant and volume resistivity. Improves processing properties such as filler dispersion, rheological behavior like viscosity reduction and newtonian behavior, increased filler loading and non-yellowing properties. It is registered with DSL/NDSL, PICCS, TSCA, IECSC, ENCS, ECL, EINECS/ELINCS, AICS and REACH. Dynasylan® GLYMO has a minimum shelf life of 12 months.
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Popular suppliers

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Evonik

900 Products
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Jinji Chemical

7 Products
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Adhesion Promoters / Bonding Agents