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Locking by bonding function

Pre-coating is a technology developed about thirty years ago for automotive industry. During the ’80s, fasteners were secured by liquid adhesives but the deposit caused much troubles on the assembly lines. The pre-coat solution came forward because of its easy to use and its favorable economic result.
Today, pre-coating is used in any industry. Our special machinery enables to realize small series (1000 units) as well as much larger series (1 million units) for a wide range of applications : M1 to M20 screws, M5 to M30 nuts, axes, pins, connectors, plugs, inserts … special parts.

Download the technical data sheet

Locking by bondfing function

The assemblies unscrew because of the vibrations, shocks and thermic dilatations. Numerous technologies have been developed in order to secure the screwed assemblies to avoid untimely unscrewing.
The most efficient solution against unscrewing is to bond the threads by the pre-coat technology.
The technique consists in pre-coating the threads with a microencapsulated adhesive which is activated only while screwing. Upon assembly, the adhesive components are released and creates a bond between the male and female threads. It is the most effective anti-unscrewing solution.

Advantages

The pre-coated fasteners replace the common thread locking solutions thanks to utmost technical performances and economical advantages:

Excellent performances: excellent resistance against vibrations
Easy conception: replaces standard screws without a re-conception of the assembly
Rapid assembly: no need of a washer nor adhesive
Technical control: the deposed volume of the pre-coating product on the assembly is always the same
Excellent quality: no omission possible of the coating process
Important reduction of the assembly costs: high productivity in workshop and on construction site
Suppression of the hygienic and security problems due to the fluid adhesives

CHARACTERISTICS AND PRODUCTS

The pre-coating products that we apply come from long partnerships with many manufacturers.

SuppliersProductColorFunctions
3m3M 2353Dark blueHigh strength
3m3M 2510OrangeHigh strength
precotePrecote 30YellowLow strength and sealing
precotePrecote 80Green or PinkHigh strength
precotePrecote 85TurquoiseLow strength with controlled torque

Quality

Our processes are ISO 9001 certified and fulfill specific requirements in the automotive industry.
QAS 9001 Logo

Approvals

Our products are approved to many standards:
Renault CDC 39.02.010
PSA B14.12.35
DIN 267-27
IFI 25/525
BS 7795
GM 6175
FORD WX200 & 201

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