LOCTITE® 431
Features and Benefits
This instant adhesive is ideal for difficult-to-bond materials such as porous and acidic materials. Also used in the assembly of disposable medical devices.
LOCTITE® 431 is a medium viscosity (medical device grade) instant adhesive designed especially for the fast bonding of plastics and rubbers. By using primer LOCTITE® SF 7701, the assembly of difficult-to-bond materials (PP, PE, PTFE) is possible. It has a fixture time of 15 seconds and is well suited for porous and/or acidic surfaces. LOCTITE 431 is tested to Henkel's ISO 10993 protocols for use in disposable medical devices.
- ISO-10993 biocompatible
- Assembles difficult-to-bond plastics when LOCTITE SF 7701 primer is used
- Ideal for bonding small to medium-size parts
- Fixture time of 5-10 seconds
- Medium viscosity
- Excellent adhesion to most substrates
- Solvent-free
- Cures very quickly when confined between two surfaces
Documents and Downloads
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Technical Information
| Colour | Ultra clear |
| Fixture time | 5.0 - 10.0 sec. |
| Gap fill | 0.15 mm |
Frequently Asked Questions
What does "medical device grade adhesive" mean?
Are certificates of biocompatibility test available?
Do instant adhesives (CA) need to be refrigerated?
What health and safety (H&S) precautions do I need to take when using this adhesive?
Why does my plastic crack when I use an instant adhesive (CA)?
Why is there a white haze on my parts around the bond area?
LOCTITE® 431
This instant adhesive is ideal for difficult-to-bond materials such as porous and acidic materials. Also used in the assembly of disposable medical devices.