Cyberbond CB 2241 is a partly flexible cyanoacrylate, also known as rubber tough. It allows dynamic and temperature-loaded bonds and guarantees certain shock-absorbing properties. This grade is also excellent for combination bondings like metal to rubber or metal to plastic. CB 2241 is a black grade with an outstanding performance. Dispensing via, e.g., LINOP dispensing equipment is limited.

Product Type: 1K (1 component) Adhesive, Reactive Adhesive, Solvent free (100% Solids) Adhesive

Application Area: Medical Applications

Compatible Substrates & Surfaces: Elastomers & Rubbers, Metal, Plastics

Chemical Family: Cyanoacrylates

Features: Alcohol Resistant, Good Adhesion, Good Toughness, High Temperature Resistance, High Viscosity, Low Odor, Semi-flexible, Shock Resistant, Solvent Resistance, Water Resistant

Technical Data Sheet

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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Highlights

Cyanoacrylates are fast setting, one component and solvent free adhesives. They are based on esters of cyanoacetic acid. To get to a finished product, mainly thickeners, respectively film forming agents (polymer methacrylics and acrylics) and stabilizers are added. The polymerization is initiated by present humidity. Best results are given between 40 to 70 % relative humidity.

Cyberbond standard grades are as follows:

  • Powerdrop series (stabilized ethyl ester)
  • Elastomer and plastic series (ethyl ester)
  • Neomer Series (surface insensitive ethyl ester)
  • xtraflex series (rubber toughened ethyl ester)
  • metal series (ethyl ester)
  • low odor series (alkoxy ester)
  • medical series (butyl- and octyl ester)

Applications & Uses

Markets
Applications
Application Area
Compatible Substrates & Surfaces
Solvent Resistance
Solvent Example Resistance
Alcohol Ethanol, Methanol Very Good
Ester (aliphatic) Ethyl Acetate (Acetic Acid Ethyl Ester) Very Bad
Ketones Acetone, Benzophenone Very Bad
Aliphatic hydrocarbons (alkanes) Petrol, Heptane, Hexane Good
Aromatic hydrocarbons Benzene, Toluene, Xylene Good
Halogenated hydrocarbons Methylene Chloride, Chloroform, Chlorobenzene Very Bad
Weak acqueous acids Diluted Nitric- , Muriatic-, Sulfuric- , Phosphoric Acid Very Good
Concentrated acid Nitric Acid, Muriatic Acid, Sulfuric Acid, Phosphoric Acid Very Bad
Weak acqueous bases Diluted Sodium Hydroxide -, Caustic Potash Solution Very Good
Concentrated bases Sodium Hydroxide -, Caustic Potash Solution Very Bad
Water   Good
Iso-propanol   Very Good
Acetone   Very Bad
Mineral oil   Good
Clean Surface

The surface condition of the mating parts has an enormous influence on the success of a bond. To achieve good bonding success the mating parts should be clean.

LINOP Equipment

Cyberbond offers by means of the LINOP Equipment range suitable dosing and LED based curing devices. We also refer to suitable dosing tips which help an economical use of the adhesives (also if used manually).

Properties

Appearance
Black, Transparent (Polymer)
Physical Properties
ValueUnitsTest Method / Conditions
Service Temperature Range-55 - 95°C-
Setting Time (Metal - Steel)30 - 90sec-
Setting Time (EPDM)6 - 16sec-
Setting Time (Plastic - ABS)7 - 13sec-
Setting Time (Wood - Beech)min. 40sec-
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (at 20°C, 160 rpm)2000 - 4000cPsCone-plate
Uncured Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)1.06g/cm³-
Flash Point85.0°C-

Regulatory & Compliance

Certifications & Compliance
Specification
  • ISO 10993-5: Test for in-vitro cytotoxicity (biocompatibility).
  • RoHS conform.

Technical Details & Test Data

Technical Details

Hot Strength on Steel

% of RT strength, tested at temperature.

Cyberbond CB 2241 - Technical Details

Time Until Full Cure

% of RT strength

Cyberbond CB 2241 - Technical Details - 1

Strength of cured adhesive

Substrate N/mm2
NBR-rubber ▲ 5 to 12
steel 18 to 28

▲ material failure

Cyberbond CB 2241 - Technical Details - 2

Heat Aging - on Steel

Tested at 20°C

Cyberbond CB 2241 - Technical Details - 3

Durability after Storage under Changing Climatic Conditions

Test with stainless steel
Above freeze point 80%rel. humidity
Temperature range: -20 - 80 °C
Cycle count - 60

Holding time at start temperature - 0
Heating up phase - 3
Keeping warm phase - 3
Cooling down phase - 3
Holding time at final temperature - 3

Cyberbond CB 2241 - Technical Details - 4

Measurement of Viscosities

Viscosity describes the flow-ability of a liquid. Cyberbond measures the viscosity of the products by means of the cone/plate method: the liquid is applied on a panel and a defined cone presses the liquid together and rotates. You differentiate between a Newtonian and a thixotropic liquid. In terms of a Newtonian liquid you will get a relative constant viscosity graph in dependence of the rotary speed of the cone. In terms of thixotropic liquids the product becomes more liquid (down to its base viscosity) the faster the cone rotates. The viscosity is measured in mPa*s (milli Pascal x second) [SI system] or in cP (centipoise) [CGS- system]; 1 mPa*s = 1 cP. In order to allow products comparison all adhesives are measured at the same rotation speeds.

  • Newtonian liquids at 160 upm
  • Thixotropic liquids at 0,5 upm and at 160 upm

Temperature always is at 20 °C / 68 °F, if not mentioned to be different.

Safety & Health

Potential Danger of Cyanoacrylates

You should care for the following:

  • Use in well ventilated areas only
  • Installll suitable exhaust systems in the workshop
  • Apply material economically and use a dosing system where appropriate
  • Allow a consistent relative humidity of 50 to 65 %; with regards to lower figures the polymerization will be delayed and monomer adhesive fume will appear
  • If necessary: wear suitable, non-sucking gloves (Eg. No cotton)
  • Keep adhesive out of reach of children

The data mentioned in this TDS, particularly the recommendations and use of products are based on our recent knowledge and experience. Due to the fact of having so many different materials involved and conditions of applications which are out of our influence, we strongly recommend to do sufficient tests in order to guarantee that Cyberbond products are suitable for the intended process and applications. Except for wilful acts any liability based on such recommendations or any verbal advice is hereby expressly excluded.

Packaging & Availability

Regional Availability
  • Africa
  • Asia Pacific (Excluding Russia)
  • Europe (Excluding Russia)
  • India
  • Latin America
  • Middle East
  • North America

Storage & Handling

Shelf Life
9 Months (at 20°C, unopened)
Storage Conditions

Store products in a cold and dark place. Before use allow to reach ambident temperature.