Product details
| Grade | Loctite 495 |
| Strength | High strength |
| Colour | Clear / colourless |
| Family | Instant adhesives |
| Brand | Loctite (Henkel) |
| Stock | Held in Dubai — buy one or bulk |
Pack sizes
| Pack | Format |
|---|
| 20 g | bottle |
| O-ring splicing kit | with 495 |
Prices on request. Tell us the quantity you need.
Check stockWhat Loctite 495 is for
A general-purpose cyanoacrylate sitting between 401 and 406 — at 20–45 mPa·s it is thinner than 401 but not as thin as 406, and Henkel lists plastics, rubbers and metals as its key substrates. It fixtures aluminium, ABS, PVC, nitrile, neoprene and phenolic in under five seconds, and mild steel in 5–10, so it is a reasonable single bottle for a mixed workshop.
Key features
- Balanced viscosity at 20–45 mPa·s — between 401 and 406
- Under 5 seconds on aluminium, ABS, PVC, nitrile, neoprene and phenolic
- 5–10 seconds on degreased mild steel
- 14.2 N/mm² lap shear on grit-blasted steel
- 22.3 N/mm² block shear on ABS — substrate failure
- Qualified to Commercial Item Description A-A-3097 (a regional approval)
- Gains strength in motor oil, petrol, ethanol and isopropanol
- ≥6.0 N/mm² tensile on Buna-N after ten seconds
Typical applications
- General bonding
- O-ring splicing
Technical data
Uncured material
| Technology | Cyanoacrylate |
| Chemical type | Ethyl cyanoacrylate |
| Appearance | Transparent, colourless to straw-coloured liquid |
| Components | One part — no mixing |
| Cure | Humidity (atmospheric moisture) |
| Viscosity, cone & plate 25°C | 20–45 mPa·s at 3,000 s⁻¹ |
| Viscosity, Brookfield LVF 25°C | Spindle 1 at 30 rpm: 20–60 mPa·s |
| Viscosity class | Low |
| Specific gravity at 25°C | 1.1 |
| Key substrates | Plastics, rubbers and metals |
Fixture time by substrate
At 22°C and 50% relative humidity — time to develop 0.1 N/mm² shear strength.
| Substrate | Fixture time (seconds) |
|---|
| Aluminium (degreased) | <5 |
| Neoprene | <5 |
| Rubber, nitrile | <5 |
| ABS | <5 |
| PVC | <5 |
| Phenolic | <5 |
| Mild steel (degreased) | 5 to 10 |
| Polycarbonate | 10 to 15 |
Lap shear strength, cured 24 hours (ISO 4587)
* substrate failure — the material broke before the bond did.
| Substrate | N/mm² | psi |
|---|
| Steel (grit blasted) | 14.2 | 2,060 |
| Aluminium (grit blasted) | 10.8 | 1,570 |
| Phenolic | 9.9 | 1,440 |
| PVC * | 8.7 | 1,260 |
| Polycarbonate * | 8 | 1,160 |
| ABS * | 7.9 | 1,150 |
| Zinc dichromate | 5.9 | 860 |
| Nitrile * | 1.3 | 190 |
| Neoprene * | 1 | 145 |
Block shear, tensile and peel
Note the T-peel figure — under 0.5 N/mm. Like every standard cyanoacrylate, 495 is weak in peel. Where a joint will be peeled, use the toughened grade 480.
| Test and substrate | N/mm² | psi |
|---|
| ABS * (block shear, ISO 13445) | 22.3 | 3,230 |
| Phenolic * (block shear) | 16.0 | 2,320 |
| Polycarbonate (block shear) | 8.4 | 1,220 |
| PVC (block shear) | 2.9 | 420 |
| Buna-N (tensile, ISO 6922) | 13.7 | 1,990 |
| Buna-N, 10 seconds (tensile) | ≥6.0 | ≥870 |
| Steel, T-peel (ISO 11339) | <0.5 N/mm | <2.8 lb/in |
Chemical resistance — grit-blasted steel
As a percentage of initial strength.
| Environment | °C | 100 h | 500 h | 1,000 h |
|---|
| Motor oil (MIL-L-46152) | 40 | 120% | 130% | 95% |
| Isopropanol | 22 | 110% | 110% | 120% |
| Ethanol | 22 | 110% | 115% | 120% |
| Petrol | 22 | 100% | 120% | 105% |
| Water / glycol 50:50 | 22 | 95% | 85% | 80% |
| Water | 22 | 85% | 75% | 70% |
| 98% relative humidity | 40 | 80% | 65% | 55% |
How to use it
- Bond areas must be clean and free from grease — clean with a Loctite cleaning solvent and allow to dry.
- On low-energy plastics, a Loctite Primer improves bonding. Do not over-apply; let it dry.
- A Loctite Activator may be used where needed. Apply to one surface only, and not to a primed surface. Let it dry.
- Apply adhesive to one surface — not the activated one. Do not spread it with tissue or a brush.
- Assemble within a few seconds and locate accurately: the short fixture time leaves almost no room to adjust.
- Hold or clamp until fixtured. Activator can be sprayed on excess product outside the joint to cure the fillet.
- Allow full strength to develop before applying service loads — typically 24 to 72 hours.
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.
- Humidity matters: best results at 40–60% RH at 22°C. Lower humidity slows the cure; higher humidity speeds it but can impair final bond strength.
495 against 401 and 406
All three are thin general-purpose cyanoacrylates and the differences are real but narrow. 401 is the strongest on steel (20 N/mm²) and the only one Henkel lists for porous materials like wood and leather. 406 is the thinnest and made for plastics and rubbers, but slow on steel. 495 sits between them — quick on almost everything, 14.2 N/mm² on steel, and a sensible single bottle where one grade has to cover mixed work. For vertical surfaces use 454; for shock and peel, 480.
Always read the current technical and safety data before use —
ask us and we'll send it with your quotation.
