Cyberbond CB SM 77 is an anaerobic adhesive that functions as a sealant and retainer. It has a high strength, high viscosity, and thixotropic properties, as well as high temperature resistance. It is suitable for use as a sealant and retainer for dynamic loaded parts such as bearings and shafts.

Product TypeAnaerobic Sealant, Retainer

Compatible Substrates & SurfacesBrass, Metal, Stainless Steel, Steel

Chemical FamilyDimethacrylates

FeaturesAlcohol Resistant, High Strength, High Temperature Resistance, High Viscosity, Thixotropic

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

General Information about Anaerobic Adhesives

Anaerobic adhesives and sealants cure by means of metal contact and/or due to the absence of air. Due to these facts they are only suitable for bonding and sealing metals. Therefore, as such they are not traditional adhesives as commonly known, but are specifically good for the bonding of metal cylindrical parts where torsion-load and shearing-load play an important part. Furthermore, anaerobics are excellent sealants for threads and flanges. Anaerobis are solvent free, one component adhesives. There are active metals (construction steel, tool steel, free cutting steel, brass, copper) and inactive metals (high alloyed or stainless steel, aluminum, electroplated surfaces, cast iron). While products used on active metals cure very fast, the same products need longer times to cure when used on inactive metals. But this does not influence the intended strength.

Applications & Uses

Compatible Substrates & Surfaces
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. A certain amount of e.g. oil can be tolerated.

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C, monomer)1.09g/cm³
Gap Filling Capacity (Monomer)0.05 - 0.20mm
Viscosity (Cone/plate, at 20°C at 160 s⁻¹)1.000 - 6.000mPa.s
Viscosity (Cone/plate, at 20°C at 0.5 s⁻¹)4.000 - 10.000mPa.s
Shear Strength (Steel pin/collar specimen, after 24h)26 - 46N/mm²
Maximum ThreadM 36
Setting Time (M10 brass bolt/nut, at 23°C)10 - 30sec
Full Cure Time (Polymer)24.0hours
Temperature Range (Polymer)-50 - 200°C

Technical Details & Test Data

Technical Information

Viscosity vs Shear Rate

 

Cyberbond CB SM 77 - Technical Information

 

 

Adhesive Strength
Substrate Nm
Steel 30 to 40
Stainless steel V2A 14 to 24
Galvanized steel 18 to 30
Brass 10 to 20

 

Breakloose Torque

Cyberbond CB SM 77 - Technical Information - 1

 

Solvent Resistance

Solvent Example Resistance
alcohols ethanol, methanol, isopropyl alcohol +
esters ethylacetate, benzoic benzyl ester, +
other liquids water, freon, diesel oil +
other liquids ammonium hydroxide, bromine, hydrobromic acid, lithium hydroxid, perchloric acid, potassium hydroxide -
gasses acetylene, argon, butane, ethane,nitrogen +
gasses ammonia, freon gas, oxygen (pure and /or oxygen rich systems), chlorine -

 

Measurement of Viscosity

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

Safety & Health

Safety Information
  • Keep the workplace clean and use in well ventilated areas only. Installll suitable exhaust system at the workplace.
  • Wear suitable safety glasses and gloves.

Packaging & Availability

Regional Availability
  • Africa
  • Europe (Excluding Russia)
  • India
  • Middle East

Storage & Handling

Shelf Life
12 Months (at 20°C in unopend bottles, Monomer)
Storage Conditions

Store products in a cold and dark place. Optimal storage temperature range is between 8°C - 21°C.