LOCTITE HY 4080

Harmonization Code : 3214.10.00 | Putty and other mastics | Resin cements, caulking compounds and other mastics

LOCTITE HY4080

Main features

  • Equal-Volume Hybrid Mixing
  • 10-Minute Fixture on Metals
  • Tough Peel and Impact Performance

Product Description

LOCTITE HY 4080 is a two-component cyanoacrylate/acrylic hybrid structural adhesive for metals, composites and plastics. Clear-to-slightly-hazy Part A and white-to-off-white Part B mix at 1:1 by volume to form an opaque, slightly yellow adhesive. The high, thixotropic formulation has a 10 minute open time at 25 deg C and typically fixtures in 10 minutes on 0.05 mm gaps in grit-blasted mild steel or aluminum. After one week at 22 deg C, the cured adhesive reaches Shore D 72 hardness and 80% elongation at break, with peel, impact and lap-shear performance on specified substrates.

Key features

  • 1:1 cartridge mixing: Equal-volume components support dispensing through a supplied mixer head.
  • 10-minute fixture time: The adhesive typically fixtures in 10 minutes on 0.05 mm steel or aluminum gaps.
  • Tough cured response: The cured hybrid provides peel, impact and shear performance on the stated substrates.

Applications

Applications include structural bonding of metals, composites and plastics where a high-viscosity hybrid adhesive is specified.

Product Family

LOCTITE HY 4080

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Opaque to slightly yellow
Chemistry Type
Cyanoacrylate /(Part B) Methacrylate
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
One component
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
1 : 1
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
A/B: 1.06 to 1.11/1.09 to 1.13
Physical Properties
Open time
10 minutes
Viscosity (Part B)
45,000 to 75,000 mPa.s
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.
80 %
Impact Strength
4.1 kJ/m² mm
Curing Conditions
Fixture Time
10 minutes
Thermal Properties
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding. The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
48 to 76 °C

Additional Information

Technical properties

As-supplied properties

Part A, Part B and mixed-system values before cure.

Property Value Unit Method / condition
Part A appearanceClear to slightly hazyCyanoacrylate component
Part B appearanceWhite to off-white pasteMethacrylate component
Mixed appearanceOpaque to slightly yellowAfter 1:1 volume mixing
Mix ratio by volume1:1Part A to Part B
Part A specific gravity1.06 to 1.11g/cm^3Typical uncured value
Part A viscosity4,000 to 11,000mPa sCone and plate, 100 s^-1, 25 deg C
Part B viscosity45,000 to 75,000mPa sCone and plate, 20 s^-1, 25 deg C
Open time10minutesOn-part life at 25 deg C
Technical properties

Final-state properties

Typical cured-material and bonded-joint values after 1 week at 22 deg C unless otherwise stated.

Property Value Unit Method / condition
Glass transition temperature48 to 76deg CISO 11359-2; cured 1 week at 22 deg C
Shore hardness72Shore DISO 868; cured 1 week at 22 deg C
Tensile strength at break11.3N/mm^2ISO 527-3; cured 1 week at 22 deg C
Tensile modulus355N/mm^2ISO 527-3; cured 1 week at 22 deg C
Elongation at break80%ISO 527-3; cured 1 week at 22 deg C
Impact strength4.1kJ/m^2ISO 9653; cured 1 week at 22 deg C
T-peel strength7.0N/mmISO 11339, grit-blasted steel; cured 1 week at 22 deg C
Lap shear strength25.6N/mm^2Grit-blasted mild steel; cured 1 week at 22 deg C

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