Shopping Cart
PERMABOND 2050- Semi-Flexible Cyan
406200000
€17.50
21,18 € Tax incl.
21,18 € Tax incl.
Semi-flexible cyanoacrylate Permabond 2050. Shore Hardness 85D, working time 10-15 s, full strength in 24 h. 20 g bottle.
Permabond 2050 is a semi-flexible cyanoacrylate adhesive designed for bonds that must withstand impact, vibration and thermal cycling. Its 85D hardness places it between rigid cyanos and fully flexible ones, offering superior gap filling and improved peel resistance compared to standard grades. It is the right choice when you need cure speed and the joint will work under dynamic conditions or on substrates of different natures.
Technical specifications
| Parameter | Value |
|---|---|
| Type | Semi-flexible cyanoacrylate |
| Shore Hardness D | 85D |
| Working time | 10 – 15 seconds |
| Full strength | 24 hours |
| Content | 20 g |
| Gap filling | Maximum (superior to standard cyano) |
| Temperature resistance | High |
| Compatible surfaces | All types, including semi-porous and flexible |
What it is used for
Permabond 2050 is designed for applications where the adhesive joint cannot be rigid: bonds between dissimilar materials, parts subject to continuous impact or vibration, and assemblies that experience thermal expansion and contraction. It works on plastics, rubbers, metals, leather, technical fabrics and semi-porous materials.
- Bonding flexible substrates such as rubber, neoprene or vulcanised silicone
- Adhering dissimilar materials (metal-plastic, plastic-rubber)
- Repairs on parts subject to continuous vibration (automotive, machinery)
- Assemblies that undergo thermal shock or temperature cycling
- Special effects and FX prosthetics applications where the joint must flex without breaking
- Gap filling or joints with small surface misalignments
- Repair of footwear, sports equipment and leather goods
- Electronics and small appliances: securing cables and components on flexible housings
How to use it
- Prepare the surfaces: Clean them with isopropyl alcohol or acetone and allow to dry completely. Remove grease, dust and surface rust. The cleaner the surface, the higher the final bond strength.
- Fit the assembly before bonding: The working time is only 10-15 seconds. Check that the parts fit correctly before applying the adhesive.
- Apply a minimal amount: Place a thin, uniform drop on one of the two surfaces. Cyanoacrylate works best in a thin layer; excess does not improve strength and hinders curing.
- Join the parts immediately: Bring the surfaces together and apply firm pressure for 30-60 seconds. Final positioning must be completed within the first 10-15 seconds.
- Maintain pressure until initial set: After one minute of pressure, the bond is already handleable with care. Do not subject the joint to stress until the full 24-hour cure cycle is complete.
- Close the bottle correctly: Wipe the nozzle with a dry cloth and close with the original cap. Store in a cool, dry place to maximise shelf life.
Warning: Cyanoacrylates are irritating to skin, eyes and respiratory tract. Always work in a well-ventilated space. Avoid skin contact: if accidental bonding occurs, do not pull forcefully; use acetone (nail polish remover) to dissolve the adhesive. Curing generates a mild exothermic reaction on porous surfaces or in high-humidity conditions; this is normal and does not indicate a malfunction. Keep out of reach of children.
Usage tips
Humidity and cure speed
Cyanoacrylate cures through moisture present on the surface and in the environment. In dry environments or on very low-porosity surfaces, curing may be slower. If you need to speed up the process, a light breath of moisture on the surface before joining, or the use of a cyanoacrylate activator, shortens the setting time. In high-humidity conditions curing is almost instantaneous, so have parts ready before opening the bottle.
Gap filling and irregular joints
One of the advantages of the 2050 over low-viscosity cyanos is its ability to fill small irregularities between surfaces. If the fit is not perfect, the 2050 bridges small voids without weakening the joint. For larger gaps, apply the adhesive in several thin layers leaving a moment between each one, rather than a single thick layer which would cure poorly in the interior. If you need an even higher-viscosity adhesive for large gaps, the Ciano Denso can complement this work on rigid parts.
Storage and shelf life
Store the closed bottle in a refrigerator (between 2 °C and 8 °C) if you are not going to use it for several weeks. Remove it with enough time for it to reach room temperature before opening; condensation of water on the cold nozzle can block it irreversibly. Once opened, shelf life is approximately 4-8 weeks under normal conditions. Premature polymerisation at the nozzle is prevented by wiping it with a dry cloth before closing the cap.
Frequently asked questions
What is the difference between a flexible cyanoacrylate and a standard one?
A standard cyanoacrylate cures forming a rigid, brittle joint that can chip under impact or vibration. Permabond 2050 cures with an 85D hardness: harder than a silicone but with the ability to absorb dynamic stresses that would break a conventional cyano. This makes it ideal for dissimilar materials or moving parts.
Does it work on porous surfaces such as wood or leather?
Yes. Permabond 2050 is specifically formulated for semi-porous surfaces. On highly absorbent materials such as untreated wood, apply a minimal amount to avoid saturating the pore; the adhesive penetrates slightly and creates a mechanical and chemical anchor. On leather, fabric or foam it gives excellent results.
Can I use it to bond rubber?
Yes, it is one of its strengths. The semi-flexible nature of the cure allows the joint to follow the movements of the substrate without delaminating. It works well on EPDM, neoprene, natural rubber and synthetic rubbers. Always prepare the surface with a light sanding beforehand to improve adhesion.
How long should I wait for the bond to bear load?
The joint is handleable within seconds, but full mechanical strength is reached at 24 hours. For light or positioning loads you can work after a few minutes; for impact, vibration or shear loads wait for the full 24-hour cycle.
Does it resist water and moisture once cured?
Cured cyanoacrylates have moderate water resistance. Permabond 2050 withstands exposure to humidity and splashing, but is not designed for prolonged immersion. For applications in continuous contact with water, consider sealants or adhesives specifically designed for that condition.
Can it be used outdoors or at high temperatures?
Permabond 2050 has improved high-temperature resistance compared to standard cyanos, making it suitable for applications with thermal cycling. For outdoor use with prolonged UV exposure or extreme temperatures, assess whether the adhesive is the limiting component of your assembly and carry out a preliminary test under real conditions.
What should I do if the bottle gets blocked?
If the nozzle has become blocked with polymerised adhesive, soak the tip in acetone for a few minutes to dissolve the plug. Use a fine needle to clean the inside of the capillary if necessary. To prevent this, always wipe the nozzle with a dry cloth before closing the cap after each use.
How does this product differ from other cyanos in the catalogue?
Feroca stocks several grades of cyanoacrylate by viscosity and rigidity. The Ciano Normal is the general-purpose grade for well-fitted rigid surfaces. The Ciano muy Líquido penetrates capillary joints and is ideal for already-assembled parts. The Ciano Denso fills larger gaps in rigid parts. Permabond 2050 is the option when the joint needs flexibility, impact absorption or resistance to thermal cycling.
No reviews
Tap to zoom
