Product details
| Grade | Loctite 496 |
| Strength | High strength |
| Colour | Clear / colourless |
| Family | Instant adhesives |
| Brand | Loctite (Henkel) |
| Stock | Held in Dubai — buy one or bulk |
Pack sizes
Prices on request. Tell us the quantity you need.
Check stockWhat Loctite 496 is for
The other methyl cyanoacrylate, and the metal-bonding grade with the best heat behaviour in this family: its glass transition is 165°C, against 100°C for the toughened 480. It matches 415 for strength at 20–30 N/mm² on steel but is far thinner at 70–120 mPa·s, so it wicks into close-fitting metal parts and fixtures faster.
Key features
- Methyl cyanoacrylate, formulated for metals
- 20–30 N/mm² lap shear on grit-blasted steel
- Glass transition 165°C — the highest of any cyanoacrylate here
- Low viscosity at 70–120 mPa·s — wicks into close joints
- ≥5.0 N/mm² on steel after just two minutes
- Qualified to Commercial Item Description A-A-3097 (a regional approval)
- Full strength retained in motor oil at 40°C to 1,000 hours
- Holds 100% of strength on polycarbonate at 95% RH
Typical applications
- Metal assemblies
- Fast fixturing
Technical data
Uncured material
| Technology | Cyanoacrylate |
| Chemical type | Methyl cyanoacrylate |
| Appearance | Transparent, colourless liquid |
| Components | One part — no mixing |
| Cure | Humidity (atmospheric moisture) |
| Viscosity, cone & plate 25°C | 70–120 mPa·s at 3,000 s⁻¹ |
| Viscosity, Brookfield LVF 25°C | Spindle 1 at 30 rpm: 100–120 mPa·s |
| Viscosity class | Low |
| Specific gravity at 25°C | 1.1 |
| Optimum bond gap | 0.05 mm |
Fixture time by substrate
At 22°C and 50% relative humidity — time to develop 0.1 N/mm² shear strength.
| Substrate | Fixture time (seconds) |
|---|
| Neoprene | <10 |
| Rubber, nitrile | <10 |
| ABS | 10 to 30 |
| Phenolic | 10 to 30 |
| Steel (degreased) | 20 to 40 |
| Polycarbonate | 20 to 70 |
| Aluminium | 30 to 60 |
| Zinc dichromate | 30 to 60 |
| PVC | 30 to 70 |
Lap shear strength, cured 24 hours
| Substrate | N/mm² | psi |
|---|
| Steel (grit blasted) | 20 to 30 | 2,900–4,350 |
| Aluminium (etched) | 15 to 22 | 2,175–3,190 |
| ABS | 6 to 20 | 870–2,900 |
| PVC | 6 to 20 | 870–2,900 |
| Polycarbonate | 5 to 20 | 725–2,900 |
| Phenolic | 5 to 15 | 725–2,175 |
| Neoprene | 5 to 15 | 725–2,175 |
| Nitrile | 5 to 15 | 725–2,175 |
| Zinc dichromate | 4 to 12 | 580–1,740 |
| Steel, after only 2 minutes | ≥5.0 | ≥725 |
Tensile strength (ISO 6922)
| Substrate | N/mm² | psi |
|---|
| Steel (grit blasted) | 12 to 25 | 1,740–3,625 |
| Buna-N | 5 to 15 | 725–2,175 |
| Buna-N, 30 seconds | ≥4.5 | ≥652 |
Chemical resistance
As a percentage of initial strength. On steel the humidity figures fall away — but on polycarbonate it holds fully.
| Environment | °C | 100 h | 500 h | 1,000 h |
|---|
| Motor oil (MIL-L-46152) | 40 | 100% | 100% | 100% |
| Ethanol | 22 | 100% | 100% | 100% |
| Petrol | 22 | 95% | 95% | 95% |
| Isopropanol | 22 | 95% | 95% | 95% |
| Freon TA | 22 | 95% | 95% | 95% |
| Heat / humidity, 95% RH | 40 | 70% | 50% | 40% |
| Heat / humidity, 95% RH on polycarbonate | 40 | 100% | 100% | 100% |
Cured material
| Glass transition temperature (ASTM E228) | 165°C |
| Coefficient of thermal expansion (ISO 11359-2) | 80 × 10⁻⁶ K⁻¹ |
| Thermal conductivity (ISO 8302) | 0.1 W/(m·K) |
| Volume resistivity (IEC 60093) | 10 × 10¹⁵ Ω·cm |
| Surface resistivity (IEC 60093) | 10 × 10¹⁵ Ω |
| Dielectric breakdown strength (IEC 60243-1) | 25 kV/mm |
| Dielectric constant at 1 kHz | 2.75 / <0.02 dissipation |
How to use it
- Bond surfaces should be clean and free from grease for best performance.
- This product performs best in a thin bond gap of about 0.05 mm.
- Apply to one surface only and assemble promptly — the parts must be located accurately, as there is little opportunity to adjust.
- Hold or clamp until fixtured.
- Excess adhesive dissolves with Loctite cleanup solvent, nitromethane or acetone.
- Allow full strength to develop before applying service loads.
Handling and storage
- Not recommended for pure oxygen or oxygen-rich systems.
- Not a sealant for chlorine or other strong oxidising materials.
- Store at 2°C to 8°C — cyanoacrylates want refrigeration, unlike the anaerobics which prefer 8–21°C. Outside that range the product properties can be affected.
- Full functional strength comes quickly, but chemical and solvent resistance keeps developing for at least 24 hours.
- Do not return decanted product to the original container.
The full instant adhesive range
Choose by substrate first, then consistency. Metals: 496 (thin, close fits) or 415 (thick, looser joints) — both 20–30 N/mm² on steel. Plastics and rubbers: 406. General purpose across everything including wood, leather and fabric: 401. Mixed work from one bottle: 495. Vertical or overhead: the 454 gel. Shock, peel or vibration: 480, the only toughened grade — every other cyanoacrylate here has a T-peel strength under 0.5 N/mm.
Always read the current technical and safety data before use —
ask us and we'll send it with your quotation.
