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

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.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
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 |
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 |





















