Threadlocking is a technology designed to prevent unintentional loosening caused by vibration, thermal shock or dynamic stress.
Two technologies are available:
- Liquid glue: Applied manually or automatically, it polymerizes in the absence of air.
- Pre-coating: Pre-application of a microencapsulated adhesive to a ready-to-use screw.
Soprifix is a pre-coating product that activates during screwing, eliminating manual application errors.
Soprifix is a range of epoxy-based micro-encapsulated adhesives designed to lock and seal fasteners. Its special features include :
- Composition: the adhesive is contained in microcapsules. When tightened, the capsules burst and release the adhesive.
- Technical resistance:
– Temperature resistance from -55°C to +150°C
– Compatible with most fluids
Soprifix optimizes mechanical performance thanks to :
– Reduced tightening torque: The dry coating generates a controlled coefficient of friction, limiting energy loss through friction.
– High breakaway torque: After polymerization, breakaway torque reaches ≥ 90% of tightening torque.
– Preload maintained: The adhesive fills micro-gaps, preventing preload relaxation even under vibration.
| Criteria | Lock washers/nuts | Soprifix |
|---|---|---|
| Vibration resistance | Limited (depends on material) | Excellent |
| Sealing | None | Yes |
| Industrial process | Risk of being forgotten or lost | Compatible with automated lines |
| Durability | Sensitive to corrosion | Locking without time limit |
Soprifix is compatible with :
- Metals: Steel (incl. stainless steel), aluminum, brass.
– Requirement: Parts must be clean and dry to remove grease and oxides.
- Complete polymerization: 72 h (80% of resistance in 24 h)
- Expiry date: 2 years on coated parts
- DIN 267-27
- B141235 – 39.02.010
- Most current standards
- Automotive
- Aerospace
- Defense
- Electronics
- Building
- …
- Samples on request: Available for validation in real-life conditions.
- Technical support: Our team can recommend a range of products (SO21B, SO22R, etc.) to suit your assembly and requirements.
Yes, for detailed information on the Soprifix range, you can consult the complete documentation by clicking on the following link: