Cyanoacrylate Adhesives

Cyanoacrylate adhesive from Permabond is a high-performance instant bonding solution that cures within seconds when applied between closely fitting surfaces. These fast-setting adhesives are ideal for applications requiring speed, precision, and durability.
Cyanoacrylate adhesives, also known as cyanolite adhesives, are especially well-suited for bonding small surfaces where rapid setting is crucial. They are compatible with a wide range of materials, including metals, plastics, rubbers, and foams—making them versatile for industrial use.
As an official distributor of Permabond, Samaro offers a complete range of cyanoacrylate adhesives and cyanolite adhesives designed to meet diverse application needs: general-purpose formulas in liquid or gel form, high-temperature resistance, odorless variants, non-blooming finishes, flexible grades, and even versions for capillary application.
Whether you are looking for a cyanoacrylate adhesive or a cyanolite adhesive for fast repairs or demanding industrial assemblies, Permabond solutions available through Samaro deliver immediate strength and long-lasting performance.
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MOLYKOTE
ARALDITE
DOWSIL
KRYTOX
SILASTIC
SYLGARD
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MERBENIT
XIAMETER
REN
DEVCON
SOCOMORE
DUNA CORRADINI
VOLTALEF
AIRTECH
SYNTHENE
TECTYL
OSIXO
HB FULLER
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Industrial cyanoacrylate adhesives

 

Cyanoacrylate adhesives are one-component adhesives that cure almost instantly through a reaction with surface moisture, without mixing or curing equipment. Just a few seconds are enough to achieve a strong bond on metals, plastics, elastomers, electronics and composites.

Historically limited in terms of water and heat resistance, modern industrial formulations now overcome many of these constraints.

Samaro distributes the Permabond and Born2Bond™ by Bostik ranges to address a wide variety of industrial applications.

 

What is a cyanoacrylate adhesive?

Cyanoacrylate adhesive, also known as super glue or instant adhesive, is an acrylic monomer that cures through anionic polymerisation triggered by hydroxyl groups present on the substrate surface and by ambient moisture.

The reaction is fast — from a few seconds to several minutes depending on viscosity and substrate — requires no mixing and creates a bond with high tensile strength.

Industrial cyanoacrylates differ from consumer-grade products through their controlled viscosities, high mechanical performance and specific formulations for difficult-to-bond substrates, high temperatures and humid environments.

 

What are the advantages and limitations of cyanoacrylate adhesives?

 

Advantages

Industrial cyanoacrylate adhesives offer significant benefits for production lines and fast assembly processes:

  • Fast bonding: fixture in just a few seconds, without extended drying times or prolonged holding of the parts.
  • Simple application: one-component product requiring no mixing. It can be applied using a syringe, automated dispensing equipment or directly from the bottle.
  • Substrate versatility: suitable for bonding metals, rigid plastics, elastomers, glass, concrete and composites.
  • Transparency: the cured bond line can remain virtually invisible, which is useful for applications where appearance matters.

 

Limitations and solutions

Conventional cyanoacrylates have certain limitations that modern industrial formulations can help address:

  • Impact and peel resistance: Permabond 737 Black Magic is a reinforced formulation offering improved resistance to impact and peeling.
  • Water sensitivity: Permabond 712 and Bostik Aquafast are resistant to immersion and hot, humid conditions. Permabond 712 withstands temperatures up to 120°C continuously and 150°C peak, making it suitable for medical, marine and food-related assemblies.
  • Difficult-to-bond surfaces: Permabond A130 is specifically formulated for low-surface-energy plastics and rubbers.
  • Low-viscosity applications: Permabond 105 is a versatile, low-viscosity grade for general-purpose bonding of close-fitting surfaces.
Choosing the right cyanoacrylate starts with qualifying the application
When selecting an industrial cyanoacrylate, I first look at the substrates and the joint geometry, then at the process constraints: production rate, gap size, dispensing method and service environment. A very low-viscosity grade for perfectly fitted parts will not meet the same need as a gel, a flexible grade or a cyanoacrylate designed to withstand moisture.
Thomas Brunet
Adhesives Brand Manager at Samaro
Visit Thomas’s LinkedIn profile Discuss your application

Cyanoacrylate or epoxy adhesive: what are the differences?

 

Cyanoacrylate adhesives cure within seconds without mixing, making them ideal for small bonding areas and fast assembly processes. They are generally less resistant to impact and high temperatures than epoxy adhesives.

Two-component epoxy adhesives provide higher static mechanical strength and improved chemical and thermal resistance, but require longer curing times.

As a general rule, cyanoacrylates are well suited to small bonding areas and close-fitting substrates, while epoxy adhesives are generally preferred for structural bonding over larger areas or in demanding environments.

 

Permabond and Born2Bond™ solutions available from Samaro

  • Permabond 105: low-viscosity cyanoacrylate for general-purpose applications, with fast bonding on metals and plastics and suitability for difficult rubbers such as EPDM.
  • Permabond A130: formulated for low-surface-energy plastics and rubbers. Medium-strength threadlocker approved for potable water contact (WRAS).
  • Permabond 712: resistant to immersion and hot/humid conditions, with continuous temperature resistance up to 120°C.
  • Permabond 737 Black Magic: flexible, high-strength cyanoacrylate with resistance to impact and vibration. Excellent adhesion to difficult plastics such as polyamide.
  • Bostik Aquafast: moisture-resistant cyanoacrylate for marine, medical and food-related applications.
  • Born2Bond™ ULTRA K85 (Bostik): the first 60% bio-based cyanoacrylate on the market, based on Arkema Oleris® technology, offering low odour and high mechanical performance.

 

Discover our dedicated pages on epoxy adhesives, methacrylate adhesives and UV-curing adhesives for a complete selection of Samaro industrial bonding solutions.

FAQ

FAQ – Frequently asked questions about cyanoacrylate adhesives

What is a cyanoacrylate adhesive?
A cyanoacrylate is a one-component adhesive that cures within seconds through a reaction with surface moisture. It can bond metals, plastics, elastomers and composites without mixing.
What is the strongest adhesive in the world?
There is no single adhesive that is universally the strongest. Bond strength depends on the substrates, the bonding area and the type of mechanical stress involved. Structural epoxies can achieve shear strengths of up to 50 MPa, MMA adhesives generally perform better under dynamic impact, while cyanoacrylates are particularly effective for small bonding areas requiring rapid assembly.
What are the hazards associated with cyanoacrylate adhesives?
Cyanoacrylates can bond skin instantly and may release mildly irritating vapours during polymerisation. Wear gloves and work in a well-ventilated area. In the event of skin bonding, soak the affected area in warm soapy water.
Can cyanoacrylate be used to bond plastic to metal?
Yes. Permabond formulations such as 105 and A130 are suitable for plastic-to-metal bonding. For low-surface-energy plastics such as PE and PP, a surface activator or Permabond A130 may be required.
Which cyanoacrylate adhesive is resistant to water?
Permabond 712 and Bostik Aquafast are specifically formulated to withstand immersion and hot, humid conditions. Permabond 712 can withstand temperatures up to 120°C continuously.
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