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.

Technical Specifications

General Properties
Specific Gravity Specific Gravity
1.1
Physical Properties
Viscosity Viscosity
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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