Description
LOCTITE® 641 is designed for the bonding of cylindrical fitting parts, particularly where disassembly is required for servicing operations. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings.
- Volume: 10ml bottle (Loctite no. 267442)
- Also available in: 50ml bottle, 250ml bottle
Application
- Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings
Characteristics
- Strength: Medium strength
Technical specifications
| Colour | Yellow |
| Fixture Time | 20.0 min. |
| Gap Fill | 0.15 mm |
| Operating Temperature | -55.0 – 150.0 °C (-65.0 – 300.0 °F ) |
| Shear Strength, Steel | 12.0 N/mm² (1700.0 psi ) |
| Substrates | Metal: Steel |
| Viscosity | 600.0 mPa·s (cP) |
Hazard Information (CLP)
Signal word: Warning.
Hazard Statements
- H319: Causes serious eye irritation.
- H335: May cause respiratory irritation.
- H412: Harmful to aquatic life with long-lasting effects.
Precautionary Statements
Prevention:
- P261: Avoid breathing vapors.
- P273: Avoid release to the environment.
Response:
- P337+P313: If eye irritation persists: Get medical advice/attention.
For consumer use only:
- P101: If medical advice is needed, have product container or label at hand.
- P102: Keep out of reach of children.
- P501: Dispose of contents/container in accordance with national regulation.
Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com






Ilaria H. –
I noticed a difference after a short time! Great product, worth every cent. Easy to use, without making a mess.
michael_x –
Fast shipping and good quality.
Fabio F. –
Fast shipping, perfect product. Punctual service. Delivered earlier than expected. Very easy to set up.
ava.sweet –
Very satisfied, it’s even better than I expected. Surprisingly good quality for the price.
Ethan S. –
Clear recommendation. Perfect for what I needed. Great value for money. Feels durable and well built.
stefan88 –
Works without any issues. Very satisfied with the purchase. Everything works perfectly so far.
Jannis X. –
No complaints so far.
Elias –
Easy to assemble. Great service and product. Practical and useful.
florian_fr –
Product as expected.
Greta –
Looks even nicer in real life. Perfect for my needs, couldn’t be happier. Packaging slightly damaged, but the product is excellent. Easy to use, without making a mess.
roberto88 –
Exactly as described.
giuseppe_it –
Fast shipping and good quality. Simply excellent. Everything as expected.
Fabian Y. –
Feels sturdy. Excellent quality. Fast and secure delivery.