Körapur® 140 is a single-component, elastic, moisture-curing polyurethane adhesive used for bonding and sealing primered and varnished metals, aluminum, wooden materials, and duroplastics. This high-strength, elastic adhesive has excellent properties such as high cold resistance, high heat resistance, excellent moisture resistance, and excellent weather resistance.

Chemical Family: Polyurethanes (PU), Urethanes

Application Method: Cartridge Dispenser, Sachet Dispenser

Compatible Substrates & Surfaces: Aluminum, Aluminum Alloys, Composites, Glass, Metal, Painted Surfaces, Plastics, Steel, Wood

Features: Excellent Elasticity, Excellent Humidity Resistance, Excellent Moisture Resistance, Excellent Strength, Excellent Substrate Adhesion, Fast Cure, Good Adhesion, Good Cold Resistance, Good Sagging Resistance, Good Stability, Good Weather Stability, Heat Resistance, High Elongation, Paintable

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
  • Higher stability
  • Permanent elasticity for thermal expansion and contraction
  • Faster cure for manufacturing flexibility
  • Good resistant to humidity and weathering
  • Excellent resistant to temperatures from (-40°F) up to (250°F)

Applications & Uses

Application Area
Application Method
Compatible Substrates & Surfaces
Cure Method




Surface requirements

free of grease

Surface cleaning

Körasolv GL
Körasolv PU
Körasolv WL
Adhesion promoter (absorbing surface)

Körabond HG 74 E

Adhesion promoter (non absorbing surface)

Körabond HG 81

Product overpaintability

after skin formation (depending on paint)


Cleaner for tools

Körasolv GL
Körasolv PU


Resistance against UV radiation

Not suitable for glass bonding with permanent UV radiation to the bonding area.

Stress cracking

Preliminary tests must be carried out on plastics with a tendency to stress cracking. (PMMA, ABS, PC or PS)

Compatibility with polystyrene foams

Not suitable for bonding polystyrene foams.

Avoid contact with isocyanate reactive substances

Avoid direct contact with isocyanate reactive substances, especially alcohol such as spirit, dilutions, cleaning compounds and fission products of silane-modified polymers or silicones until the adhesive has attained full cure. This will prevent the adhesive from curing properly.

  • Low temperatures can cause a temporary increase in viscosity resulting in reduced extrusion and slower curing rates.
  • Cleaning: Clean tools immediately after use. Once cured, the material can only be removed mechanically. Appropriate cleaners are listed in the product properties table.
  • Dimensioning: The required thickness of the adhesive layer depends on the expected maximum strength and joint movement. We recommend a minimum layer thickness of 2 mm.


Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Solid Content93.0wt %-
Specific Volume Resistancemin. 1 x 10¹⁰Ω.cmKö-test method 100262
Cured Properties
ValueUnitsTest Method / Conditions
Skin Formation Time45.0minKö-test method 100109, Climate according to DIN 50014
Curing to Depth3.0mm/dwithin first 24 h; Climate according to DIN 50014
Change in Volume-7.0%DIN EN ISO 10563
Hardness (after 28d, thickness of specimen = 6 mm)55.0-DIN ISO 7619-1, Shore A
Tensile Strength4.0MPaDIN EN ISO 527
Elongation at Break400.0%DIN EN ISO 527
G10-Modulus1.3MPaDIN EN 1465
Lap Shear Strength (substrates: aluminum/aluminum)3.0MPaDIN EN 1465
Tear Strength7.0N/mmISO 34-1
Processing Parameters
ValueUnitsTest Method / Conditions
Processing Temperature15 - 35°C-
Required Squeezing Pressure2 - 5bar-
Recommended Minimum Layer Thickness2.0mm-
Recommended Operating Conditions
ValueUnitsTest Method / Conditions
Service Temperature- 60 - 90°C-
Short-Term Temperature Resistance (60 min)120.0°C-

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia Pacific (Excluding Russia)
  • Australia
  • Canada
  • China
  • Europe (Excluding Russia)
  • India
  • Japan
  • Korea
  • Latin America
  • Malaysia
  • Middle East
  • North America
  • Philippines
  • USA

Storage & Handling

Storage Condition

Körapur 125 should be used within the shelf life specified on the packaging. The storage stability only applies to material stored in original unopened containers, at storage temperature 5°C to 25°C.