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Cyanacrylat-Klebstoffe

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Cyanacrylat-Klebstoffe

Permabond still manufactures the original cyanoacrylate formulation Permabond 910 (previously Eastman 910). The name 910, comes from counting to 10 as the inventor determined that the product sets between 9 and 10 seconds.

Since that original formulation Permabond has expanded the versatility of its cyanoacrylate product line to include a tremendous number of formulations, each with unique characteristics that overcomes specific design and manufacturing challenges.

Permabond cyanoacrylates are ideal for bonding materials such as metal, rubber, composite, plastic, silicone and many more substrates. New formulations continue to eliminate design challenges encountered by engineers trying to bond difficult plastics such as polypropylene, polyethylene, PTFE, and other polyolefins. Permabond’s high performance industrial cyanoacrylate adhesives that are available provide very fast set times, a range of viscosity choices as well as non-blooming / low odor formulations, and products with very high temperature resistance.

How Do Cyanoacrylate Adhesives Work?

Permabond’s cyanoacrylate adhesives (also called instant adhesives or super glue) cure by reacting to very small amounts of moisture on the surface of the components being bonded.

That’s it – no ovens, no mixing, no specialty curing equipment – they simply cure from the residual moisture naturally occurring on the surface of the components. Permabond recognizes that in applications such as wire tacking and tamper proofing the adhesive is not compressed between two surfaces. For this type of application where the adhesive is exposed, activators are available. Simply spray the activator on the exposed cyanoacrylate to instantly cure it. Cyanoacrylate activators can also be used on very dry or acidic parts or to facilitate cure prior to wicking into porous substrates.

Key features

  • Gap fill ranges for cyanoacrylates are 0.015mm (0.006″) to 0.5mm (0.02″).
  • Temperature resistance ranges from -55 to +250°C (-55 to +482°F).
  • Viscosity ranges from wicking grade to thixotropic no flow gel

Specialty Grades

  • Metal Bonding
  • Plastic Bonding
  • Low Odor – Non-Blooming
  • Surface Insensitive – for Acidic Surfaces
  • High Temperature Resistant
  • Toughened – for Improved Impact Resistance

Whether you are using cyanoacrylates for bonding, sealing, tamper proofing, wire tacking or simply as a manufacturing aid while you wait for another adhesive to set, Permabond’s research and development team continually push the limits of cyanoacrylate technology.

Highlights of a few products follow …

High Temperature Resistance

Permabond products 919, 920, and 922 resist up to 250°C (482°F) after a secondary heat cure. Permabond 820 offers the highest temperature resistance the technology will withstand 200°C (390°F) without a secondary heat cure.

No Drip Gel

Permabond has many very high viscosity cyanoacrylates and offers a true thixotropic gel adhesive. This thixotropic gel was specially formulated for applications that require the adhesive to stay in place even on vertical surfaces. The gel is also surface insensitive so it bonds a wide variety of substrates including acidic substrates.

Non-Blooming and Low Odor

Blooming can be seen as a fine white residue which surrounds the bond area. Permabonds 940 series is non-blooming and virtually odor free. Permabond’s chemists perfected the low odor technology so the adhesives are fast curing and provide high strength to a variety of surfaces.

Impact Resistance

By nature cyanoacrylates are not incredibly impact resistant. Permabond’s toughened grades, Permabond 731, 735 and 737 provide the ultimate impact and peel resistance. They were initially designed for flexible substrates but the added flexibility and toughness of these products provides even greater shear strength on rigid materials like steel. Permabond 735 and 737 are opaque black and Permabond 731 is crystal clear.

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