LOCTITE 403

Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg

LOCTITE 403

Main features

  • Low-Odor Bonding Processing
  • Low-Blooming Bonding Cure
  • High-Viscosity Placement Control

Product Description

LOCTITE® 403™ is a one-component alkoxyethyl cyanoacrylate adhesive specifically formulated to provide rapid bonding with low odor and low blooming characteristics. The high-viscosity adhesive cures quickly in the presence of ambient humidity and is particularly suitable for applications where vapor control is difficult. It bonds a wide variety of materials including metals, plastics, elastomers, porous materials, wood, paper, leather and fabrics. Its low-whitening properties make it ideal for aesthetic assemblies and applications requiring clean bond lines and minimized residue formation.

Key Features & Benefits

  • Low odor alkoxyethyl cyanoacrylate formulation.
  • Low blooming (low whitening) characteristics.
  • One-component adhesive requiring no mixing.
  • Fast humidity-activated curing at room temperature.
  • Excellent adhesion to metals, plastics and elastomers.
  • Suitable for porous and absorbent materials.
  • High viscosity supports gap tolerance and controlled dispensing.

Recommended Applications

  • Bonding metals, plastics and elastomers.
  • Wood, paper, leather and fabric assembly.
  • Applications sensitive to adhesive blooming.
  • General-purpose industrial assembly and repair.
  • Precision bonding where low odor is preferred.
Product Family

LOCTITE 403

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
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.
1.1
Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
900 - 1,500 mPa.s

Additional Information

Technical Properties

As-Supplied / Before-Processing Properties

Property Value Unit Condition
Technology Cyanoacrylate — Alkoxyethyl cyanoacrylate adhesive
Chemical Type Alkoxyethyl Cyanoacrylate — Low odor formulation
Appearance Transparent, Colorless to Pale Yellow Liquid — Uncured
Components One Part — No mixing required
Specific Gravity 1.1 — 25°C
Viscosity (Cone & Plate) 900 - 1,500 mPa·s 25°C, Shear Rate 100 s⁻¹
Brookfield Viscosity 1,100 - 1,650 mPa·s LVF, Spindle 2, 12 rpm, 25°C
Cure Type Humidity Cure — Ambient moisture activated
Technical Properties

After-Processing / Final-State Properties

Property Value Unit Condition / Method
Tensile Strength (Steel Pin to Steel Pin) 30 N/mm² ISO 6922, 24 h cure @ 22°C
Tensile Strength (Buna-N) ≥4.5 N/mm² ISO 6922, 10 s cure @ 22°C
Lap Shear Strength (Steel, Grit Blasted) 20.3 N/mm² 72 h cure @ 22°C
Lap Shear Strength (Aluminum, Etched) 14.1 N/mm² 72 h cure @ 22°C
Lap Shear Strength (ABS) 8.6 N/mm² 72 h cure @ 22°C
Lap Shear Strength (Polycarbonate) 6.0 N/mm² 72 h cure @ 22°C
Block Shear Strength (Polycarbonate) 16.1 N/mm² ISO 13445
Fixture Time (ABS) 5 - 10 seconds 22°C, 50% RH
Fixture Time (Paper) <5 seconds 22°C, 50% RH

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