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🔧 Lock it down with LOCTITE 638 — where strength meets precision.
LOCTITE 638 is a high-strength, anaerobic adhesive designed for securing cylindrical metal parts with bond gaps up to 0.25 mm. It offers exceptional resistance to temperature extremes (-55°C to +180°C), oils, vibrations, and corrosion, making it ideal for industrial applications like gearboxes and engines. This 50ml green acrylate-based liquid cures quickly in the absence of air, ensuring durable, leak-proof, and vibration-resistant joints on both active and passive metals.
| ASIN | B00NU1VN48 |
| Best Sellers Rank | 23,985 in DIY & Tools ( See Top 100 in DIY & Tools ) 158 in Universal Adhesives |
| Brand | Loctite |
| Colour | Green |
| Compatible Material | Metal |
| Container Type | Bottle |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.4 out of 5 stars 94 Reviews |
| Full Cure Time | 24 Hours |
| Included Components | 1x LOCTITE 638 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | LOCTITE 638 |
| Item Volume | 50 Millilitres |
| Item Weight | 50 Grams |
| Item form | Liquid |
| Manufacturer | Henkel |
| Manufacturer Part Number | 1803365 |
| Material | Acrylate-based |
| Model Number | 638X50ML LOC |
| Other Special Features of the Product | Strong |
| Special feature | Strong |
| Specific Uses For Product | Craft |
| Specific uses for product | Craft |
| Unit Count | 1 Retaining Compound |
| Viscosity Level | Medium |
| Water Resistance Level | Water Resistant |
M**N
G Steadman
Excellent
G**D
May not be cheap but really does the job well
Use this a lot at my work has never let me down very strong bonding
J**T
EXTRA Security
Good product ONLY small amount required.
R**Y
Excellent High Strength, High Strength Adhesive
Excellent high strength, high temperature oil resistant adhesive. Takes 24 hours or more to cure but impressive strength.
A**L
Loctite It works great
I bought this after a recommendation from a motorcycle friend who said its as strong as a weld.. Needed to bond metal to metal and followed the instructions carefully. Left the two parts for 24 hours and it was stuck solid. Loctite range is super especially the red bottle type.
C**L
Not the best
The product sent was made in india and took 55nm to loosen a m16x2 nut that was randomly hand screwed on a bolt. The ireland product I've had in the past took 115nm to undo in the same experiment. Both force dried with heat gun and left for 24hrs. In my opinion the Indian product isn't any stronger then loctite 243 medium strength.
J**N
How well it performs.
Good product. Well pleased.
C**R
Does what it says
I used this to attach a car windscreen wiper arm to its very worn spindle. After attempts with other products this adhesive is still hanging on after a month in the rain. An incredibly effective glue.
Trustpilot
3 weeks ago
4 days ago