LOCTITE UK2073

Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide

LOCTITE UK2073 LOCTITE UK2073

Main features

  • Low-Energy Plastic Bonding
  • Nominal 2:1 Meter-Mix Processing
  • Elastic 300% Elongation

Product Description

LOCTITE UK 2073 / LOCTITE UK 2173 Polyurethane Adhesive/Sealant System pairs two solvent-free polyurethane components for elastic bonding and sealing of plastic and multi-material automotive assemblies. Components A and B are nominally meter mixed at 2:1 by volume through a static mixer, with a 3 to 4 minute open time at 40 deg C. The room-temperature cure develops a flexible bond with 300% elongation, 3.5 to 4.5 MPa tensile strength, and Shore A 60 to 70 hardness. It is particularly suited to low-surface-energy plastics including PP talc and PP LGF, as well as PC/ABS and PC/PET, in spoilers, tailgates, roof systems, bumpers, dashboards, and trim.

Key features

  • Low-Energy Plastic Bonding: Supports PP talc, PP LGF, PC/ABS, PC/PET, and multi-material assemblies.
  • Nominal 2:1 Meter-Mix Application: The published 2:1 volume ratio is applied through a static mixer; application-specific conditions should be confirmed.
  • Elastic Cured Bond: The cured system provides 300% elongation and Shore A 60 to 70 hardness.

Applications

Applications include spoilers, tailgates, roof systems, bumpers, luggage racks, dashboards, trim, and other automotive plastic or multi-material assemblies.

Product Family

LOCTITE UK2073

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TDS, SDS & Technical Documents

Technical Specifications

Physical Properties
Open time
3 to 4 minutes
Viscosity (Part B)
30,000 to 100,000 mPa.s
General Properties
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
2 :1
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
300 %

Additional Information

Technical properties

Component properties

Component A and Component B values are listed separately before 2:1 volume mixing.

Property Value Unit Method / condition
Component A appearance Black As supplied
Component A density 1.35 g/cm^3 23 deg C
Component A viscosity 60 to 100 Pa s 23 deg C, rheometer
Component B appearance Gray As supplied
Component B density 1.38 g/cm^3 23 deg C
Component B viscosity 30 to 100 Pa s 23 deg C, rheometer
Mix ratio 2:1 by volume Component A : Component B; published nominal ratio
Technical properties

Mixed and cured system properties

Values apply to the complete LOCTITE UK 2073 / LOCTITE UK 2173 system.

Property Value Unit Method / condition
Open time 3 to 4 min 40 deg C
Tensile shear strength >2.5 MPa After 3 days at 23 deg C on documented plastic and e-coated steel substrates
Elongation at break 300 % Cured system
Tensile strength 3.5 to 4.5 MPa Cured system
Hardness 60 to 70 Shore A Cured system
Final strength development 3 days Room-temperature cure

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