Bonding & sealing.
Anaerobic threadlocking, cyanoacrylate, 2K epoxy, MMA structural adhesive, MS polymer, and FIPG gasketing: each adhesive class cures and performs differently. This topic area explains curing mechanisms, selection criteria, and typical applications in industrial assembly.
Overview
Basics
Industrial adhesives are primarily differentiated by their curing mechanism and the resulting properties. Anaerobic adhesives cure in the absence of air upon contact with metal (thread locking, shaft-hub, thread sealing, and flange sealing). Cyanoacrylates (instant adhesives) cure within seconds through exposure to atmospheric moisture and are suitable for small bonding areas with narrow gaps. Epoxy adhesives (1K/2K) achieve high strengths and good media resistance. MMA and structural adhesives combine high strength with toughness and gap-filling capability. MS polymers and polyurethanes bond and seal with permanent elasticity. UV adhesives cure within seconds, provided that UV light reaches the bond line, for example through glass or transparent plastics. Selection criteria include the material pairing, gap dimension, desired strength or elasticity, temperature and media resistance, curing speed, and surface preparation.
Product range
Products & Brands
In the shop you will find the range for this topic area: threadlockers and anaerobic sealants, cyanoacrylate adhesives, 2K epoxy adhesives, structural adhesives, as well as elastic adhesives and sealants, including those from Loctite, Teroson, and Permabond. Technical data sheets and safety data sheets are available as a basis for decision-making, and we support you in the selection process.
Knowledge
Popular content
Comparisons and selection aids from the Knowledge Center: from an overview of adhesive classes to high-strength shaft-hub connections.
Industrial adhesives in comparison: epoxy, CA, anaerobic, UV, MMA
Loctite 638: High-Strength Shaft-Hub Connection
Permabond Adhesives: Product Range & Loctite Comparison
Bonding metal without welding: 5 adhesives in comparison
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Bonding instead of welding: choose the joining technology
Overview
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Areas of application
For which industry?
Adhesive technology complements or replaces screws, welding, and riveting. These industries place typical demands on strength, media resistance, and process.
FAQ
Frequently asked questions
Which adhesive bonds metal without welding?
For high-strength metal bonding, 2K epoxies, MMA structural adhesives, and, for shaft-hub or threaded connections, anaerobic adhesives are suitable. The decisive factors are gap size, type of load (shear rather than peel), and temperature. Surface preparation significantly determines the achievable strength; we recommend a suitability test on the original substrate.
When anaerobic, when epoxy?
Anaerobic for metallic, narrow gaps such as screws, fits, and threads: curing requires exclusion of air and metal contact. Epoxy for structural surface bonding, also of dissimilar materials and larger gaps; for 2K systems, the mixing ratio and pot life must be observed.
Contact
Material question still open?
Describe to us the application, materials, and load. We will evaluate suitable adhesives and sealants based on the technical data sheets and present alternatives.