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PERMABOND 2050

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Permabond 2050 — Cyanoacrylate instant adhesive, viscosity 1200-1800 mPa·s, Shore D 85.

High-viscosity flexible industrial adhesive with double the impact strength — ideal for bonding different materials under vibration.

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  • Manufacturer
  • dielectric constant
  • Dielectric strength (ASTM D-149)
  • Impact resistance (ASTM D950)
  • thermal conductivity
  • coefficient of thermal expansion
  • brand
  • Container
  • Color
  • Country of origin
  • Chemical group
  • Viscosity (adhesives)
  • Viscosity mPa·s
  • Specific gravity
  • Maximum gap width (mm)
  • Steel hand strength (sec.)
  • Rubber's hand strength (sec.)
  • Hand strength of phenol (seconds)
  • Steel
  • ABS
  • PVC
  • PC
  • Operating temperature (°C)
  • Hardness (Shore D)
  • Storage temperature (°C)
  • Final strength
  • Impact resistance (astm D-950)
  • Dielectric strength
  • UFI (Unique Formula Identifier)

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Rubber, metal, plastic , solvent-free , colorless, impact-resistant PERMABOND superglue , thixotropic, impact-resistant

 
General Terms and Conditions.

Shipping usually within 1 to 3 business days
(availability will be confirmed after ordering)

. Express logistics. Fast and reliable within Switzerland & Europe.

Shipping from Swiss warehouse within 24 hours. Batch certificate. Invoice within 30 days (B2B). Technical support.
Shipping & Delivery

Usually 1 to 3 working days

Availability will be confirmed after order receipt.

Express logistics within Switzerland & Europe.

General Terms and Conditions →

Product data

Internal reference: 49-2050.FL

HS code: 3506.9190000

Internal reference: 49-2050.FL
HS code: 3506.9190000

PERMABOND 2050
PERMABOND 2050
Permabond · Permabond Engineering Adhesives Ltd · SKU 49-2050.FL

Permabond 2050 is a flexible, impact-modified cyanoacrylate adhesive — specifically for bonded joints that must withstand shock, vibration or thermal cycling.

With a viscosity of 1200–1800 mPa·s and a maximum gap filling of 0.2 mm, Permabond 2050 is one of the thickest cyanoacrylates in the range — ideal for vertical applications or large tolerances where standard cyanoacrylates would run.

The real USP: Its impact strength of 5–10 kJ/m² is more than twice that of standard cyanoacrylates . In addition, it offers significantly improved peel strength and vibration resistance. Permabond 2050 is the right choice when the adhesive bond is subjected to dynamic loads—and it's the only Permabond CA that can also bond silicone when used with POP primer .

Special feature

Impact-resistant and flexible — suitable for bonding dissimilar materials (e.g., metal-plastic) that are subject to thermal shock or thermal cycling. Improved peel strength compared to standard cyanoacrylates.

Permabond 2050 in figures
1'200–1'800
mPa·s viscosity
5–10
kJ/m² Impact strength
0,2
mm gap filling
10–15 s
Firmly on steel

What makes Permabond 2050 stand out

Double impact strength
5–10 kJ/m² according to ASTM D-950 — more than twice as high as standard cyanoacrylates (3–5 kJ/m²). The bond withstands impact and shock.
Flexible and impact-resistant
Modified formulation with improved peel strength — not a brittle adhesive seam, but a dynamically resilient bond.
Vibration and thermal cycle resistant
Ideal for bonding different materials (e.g., metal-plastic) that are exposed to heat or vibration changes.
High viscosity for vertical applications
1200–1800 mPa·s remains at the application site, even on vertical surfaces or overhead — no dripping or running.
Substrate failure in ABS, PVC and PC
The adhesive withstands the plastic itself — in the break test, the component tears, not the seam.
Suitable for silicone (with POP primer)
The only Permabond-CA that can reliably bond silicone components in combination with polyolefin primers.

What is Permabond 2050 used for?

Vibration and shock load
Machine components, bearing fixing, sensors in mobile applications — anywhere standard CAs would break due to brittleness.
Composite of different materials
Metal + plastic, metal + rubber — the flexibility compensates for different thermal expansions.
Vertical and overhead bonding
High enough viscosity to stay on vertical surfaces — no special mounting required.
Silicone bonding (with POP)
In combination with Permabond polyolefin primer — a rare property among cyanoacrylates.
Semi-porous and flexible surfaces
Ideal for locations where standard CAs would seep into the surface or become brittle too quickly.

processing

1
Clean surfaces
Bonding surfaces must be clean, dry, and free of grease. Degrease with acetone or isopropanol. Lightly sand aluminum, copper, and their alloys to remove the oxide layer.
2
Dispensing adhesive
Apply Permabond 2050 sparingly to the bonding surface. Its high viscosity remains at the application point, even on vertical or overhead surfaces.
3
assembling components
Quickly and correctly align the parts. Apply enough pressure so that the adhesive spreads into a thin film.
4
Secure until firmly in place
Do not disturb or realign until handling strength is reached (10–15 s on steel, 5–10 s on Buna-N and PVC). Final strength after 24 hours.
5
Remove adhesive residue
Excess adhesive can be removed with Permabond CA Solvent, nitromethane or acetone.
Data sheets & safety data sheet
Full TDS and SDS in DE, EN, FR — view or download directly.
To the documents →

Recommended accessories

Permabond Activator CSA
Accelerates curing and enables bonding on porous or acidic surfaces.
View product →
Permabond POP Primer
Polyolefin primer for the pretreatment of PP, PE, PTFE and silicone — mandatory for silicone bonding with Permabond 2050.
View product →
Permabond Cleaner A Aerosol
Spray cleaner for quick degreasing and preparation of the bonding surfaces before applying cyanoacrylate.
View product →
Permabond CA Solvent 2
Special solvent for removing hardened cyanoacrylate adhesive residue — gentler than acetone or nitromethane.
View product →

Important instructions

Not suitable for
Avoid contact with strong oxidizing agents or polar solvents (brief solvent washing is harmless). Pretreatment with Permabond POP primer is mandatory for PP, PE, PTFE, and silicone.
storage
Store refrigerated at 2 to 7 °C. Allow the bottle to warm to room temperature before opening – this prevents condensation and protects the shelf life.

Which Permabond is suitable for which application?

Permabond 2050 in direct comparison — pay particular attention to impact strength and viscosity.

Permabond 101 → Permabond 102 → Permabond 910 →
Permabond 2050
Current product
Chemistry Ethyl cyanoacrylate Ethyl cyanoacrylate Methyl cyanoacrylate Ethyl-CA, flexible
viscosity 2–3 mPa·s 70–90 mPa·s 70–90 mPa·s 1200-1800 mPa·s
Maximum gap filling. 0.05 mm 0.15 mm 0.15 mm 0.2 mm
Shear strength steel 19–23 N/mm² 19–23 N/mm² 23–29 N/mm² 16-20 N/mm²
Impact resistance 3–5 kJ/m² 3–5 kJ/m² 3–5 kJ/m² 5–10 kJ/m²
Strength / Recommended for Wicking,
microgap		 General purpose,
larger column		 Highest steel
strength		 Vibration, impact,
thermal cycles
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
Rubber, metal, plastic , solvent-free , colorless, impact-resistant PERMABOND superglue , thixotropic, impact-resistant

Technical data for PERMABOND 2050

All 29 product information 5 Performance at final strength 2 Physical properties 5 Electrical properties 2 Curing values ​​5 Mechanical properties 2 Shear strength ISO 4587 in N/mm² 4 Thermal properties 4
Product information
Manufacturer Permabond Engineering Adhesives Ltd
brand Permabond
Container 20 g, 50 g, 500 g
Country of origin Italy
UFI (Unique Formula Identifier) YHJ0-608W-700C-MM23
Performance at final strength
Impact resistance (astm D-950) 5-10 kJ/m²
Dielectric strength 25 kV/mm
Physical properties
Color colorless
Chemical group Ethyl cyanoacrylate
Viscosity (adhesives) Medium viscosity 500 - 5000 mPas
Viscosity mPa·s 1200-1800
Specific gravity 1.1
Electrical properties
dielectric constant 2.5 (@ 10 kHz)
Dielectric strength (ASTM D-149) 25 kV/mm
Curing values
Maximum gap width (mm) 0.2
Steel hand strength (sec.) 10-15
Rubber's hand strength (sec.) 5-10
Hand strength of phenol (seconds) 5-10
Final strength 24 hours
Mechanical properties
Impact resistance (ASTM D950) 5-10 kJ/m²
Hardness (Shore D) 85
Shear strength ISO 4587 in N/mm²
Steel 16-20
ABS >6
PVC >6
PC >5
Thermal properties
thermal conductivity 0.1 W/(m·K)
coefficient of thermal expansion 90 × 10⁻⁶ mm/mm/°C
Operating temperature (°C) -55 to +80
Storage temperature (°C) 2-7

For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.

Documents and datasheets

Click on a document for a preview or the download icon for a direct download.

Technical Data Sheets (TDS) 3
Permabond 2050 - Technical Data Sheet DE.pdf
334 KB
Permabond 2050 - Technical Data Sheet EN.pdf
372 KB
Permabond 2050 - Fiche Technique FR.pdf
340 KB
Safety Data Sheets (SDS) 3
Permabond 2050 - Safety Data Sheet DE.pdf
335 KB
Permabond 2050 - Safety Data Sheet EN.pdf
311 KB
Permabond 2050 - Fiche de Sécurité FR.pdf
334 KB

Frequently asked questions about Permabond 2050

Practical application and design questions — answered by SILITECH.

Permabond 2050 is a flexible, high-impact cyanoacrylate adhesive (1200–1800 mPa·s) for dynamically stressed bonding applications—vibration, shock, and thermal cycling—where standard cyanoacrylates would fail due to brittleness. With twice the impact strength (5–10 kJ/m²), a maximum gap filling of 0.2 mm, and the rare ability to bond silicone when used with a POP primer, Permabond 2050 is the ideal choice for demanding bonding applications involving diverse materials.

Standard cyanoacrylates have a hard, brittle bond—it can tear under impact or vibration. Permabond 2050 is modified with elastomers: the bond remains strong but yields minimally under load instead of breaking. This doubles the impact strength (5–10 kJ/m² instead of 3–5 kJ/m²) and significantly improves peel strength. The trade-off: the purely static shear strength on steel is slightly lower at 16–20 N/mm² than standard cyanoacrylates (19–23 N/mm²), but the bond withstands dynamic loads much better.

Permabond 2050 bonds steel (16–20 N/mm²), Buna-N rubber, and plastics: ABS (>6 N/mm² SF), PVC (>8 SF), and polycarbonate (>5 SF), each with substrate failure. A special feature: in combination with Permabond Polyolefin Primer (POP), Permabond 2050 also bonds silicone—the only Permabond CA product to do so. Pretreatment with POP is also required for PP, PE, and PTFE. Permabond 2050 is particularly suitable for bonding dissimilar materials (e.g., metal-plastic).

Permabond 2050 is not approved to MIL-A-46050C — the special formulation with Toughener modification does not meet the classic cyanoacrylate MIL specifications. For MIL-approved applications, we recommend Permabond 101, 102, 105 , or 910.Permabond 2050 is chosen when dynamic loading is more important than formal approval.

Choose Permabond 2050when the bond is subject to shock, vibration, or thermal cycling—for example, in mobile devices, machinery with dynamic loads, or when bonding dissimilar materials with different coefficients of thermal expansion. Permabond 102 is the right choice for standard static bonding with higher shear strength (19–23 vs. 16–20 N/mm²) and lower viscosity (70–90 vs. 1200–1800 mPa·s). Permabond 2050 is also preferable for vertical applications because its high viscosity prevents runoff.

Permabond 2050 should be stored unopened refrigerated at 2 to 7 °C and is stable until the printed expiration date. Allow the bottle to warm to room temperature before opening – this prevents condensation. Opened bottles remain functional for several months if stored correctly. Due to the Toughener modification, reactivity may decrease slightly with prolonged storage – we recommend a test bond before critical production applications.

For bonding applications subject to vibration or impact, as well as for bonding dissimilar materials, Permabond 2050 the right choice. Permabond 101 ideal for micro-gap bonding and wicking. For general-purpose bonding with larger gaps, Permabond 102 is recommended. For demanding rubber bonding applications (NR, EPDM, butyl) and visible components, Permabond 105 is suitable. For maximum strength on metals , Permabond 910is recommended. For polypropylene, polyethylene, PTFE, and silicone, pretreatment with Permabond POP Primer required.

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Product specifications

Product information
Container 20 g or 50 g or 500 g
Manufacturer Permabond Engineering Adhesives Ltd
brand Permabond
Country of origin Italy
UFI (Unique Formula Identifier) YHJ0-608W-700C-MM23
Performance at final strength
Impact resistance (astm D-950) 5-10 kJ/m²
Dielectric strength 25 kV/mm
Physical properties
Color colorless
Chemical group Ethyl cyanoacrylate
Viscosity (adhesives) Medium viscosity 500 - 5000 mPas
Viscosity mPa·s 1200-1800
Specific gravity 1.1
Electrical properties
dielectric constant 2.5 (@ 10 kHz)
Dielectric strength (ASTM D-149) 25 kV/mm
Curing values
Maximum gap width (mm) 0.2
Steel hand strength (sec.) 10-15
Rubber's hand strength (sec.) 5-10
Hand strength of phenol (seconds) 5-10
Final strength 24 hours
Mechanical properties
Impact resistance (ASTM D950) 5-10 kJ/m²
Hardness (Shore D) 85
Shear strength ISO 4587 in N/mm²
Steel 16-20
ABS >6
PVC >6
PC >5
Thermal properties
thermal conductivity 0.1 W/(m·K)
coefficient of thermal expansion 90 × 10⁻⁶ mm/mm/°C
Operating temperature (°C) -55 to +80
Storage temperature (°C) 2-7
Keywords
Keywords
Rubber, metal, plastic , solvent-free , colorless, impact-resistant PERMABOND superglue , thixotropic, impact-resistant

Documents and datasheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download: