Sealing Function : discover our data sheet!
Pre-coating is an innovative and economical technique that advantageously replaces many sealing systems such as flat seals, O-rings, sealing pastes, anaerobic resins and Teflon strips.
Our special machinery allows us to produce small series (1000 pieces) as well as large series (1 million pieces) on a very wide range of applications.
Our data sheet is available! Download it here
Under heads sealing of screws & crimped parts
Sealing of threads on all types of parts
Sealing of tubes and stocketed parts
Sealing combined with locking function
PRESENTATION
The sealing function is often both complex and costly to obtain in mechanical assemblies. The pre-coating of fasteners makes it possible to ensure a completely reliable, easy-to-use seal with no installation costs.
The product we apply to your parts is dry, non-sticky and completely localized.
During assembly, whether by screwing, press fitting or crimping, fills in spaces in the assembly to ensure an immediate sealing.
A variety of fluids can be sealed using the pre-coating technique:
Compressed air and gas
Oils and hydrocarbons
Cooling liquids and brake liquid
Water for spraying or immersion
BENEFITS
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Elimination of costs for workshop or construction site assembly
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Replaces O-rings or flat seals as well as difficult-toapply
pastes and liquid resins.
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Perfect seal: 100% sealing with no leakage
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Flawless quality: the sealing system is guaranteed and visible
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Immediate sealing after assembly, up to 50 bars for certain assemblies.
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High admissible pressures
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Sealing level of up to IP67
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Control of technical parameters
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High resistance to chemicals
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Works on all types of metal as well as on plastic parts
#1 / UNDER HEADS SEALING OF SCREWS AND CRIMPED PARTS
Pre-coating involves applying a bead of product under the heads of screws for an immediate seal following assembly. Their re-use depends on the shape and profile of the interface.
Sealing of screwed parts :
M2 to M4 electronics screws
Screws for plastic
Standard screws
Threaded plugs
Sealing of crimped parts :
Blind rivet nuts
Clinch studs
Small head rivet nuts
PERFORMANCES
Tension is maintained in screwed assemblies as the metal-to-metal contact is maintained.
Compact sealing function design
No added parts (washers, paste, etc.)
Streamlined industrial process: automatic assembly using a vibrating bowl, etc.
A lower overall cost than traditional solutions
#2 / SEALING OF THREADED PARTS
APPLICATIONS
Screws, axis, studs
Stoppers and connectors for fluids
Sensor and contactor plugs
Special parts
Pre-coated parts can be used for a variety of applications including electronics, automobiles, motorcycles, household appliances, electric motors…
PERFORMANCES
A more effective substitute for flat seals and O-rings
Prevents loss of clamping force due to vibration
Simplified industrialization in air, water or oil circuits
Good heat and chemical resistance
#3 / SEALING OF TUBES AND SOCKETED PARTS
Soprima has developed special expertise in the pre-coating of socketed parts.
Our pre-coating technique for tubes, axis and other smooth parts offers superior technical performance and substantial savings in a variety of sectors
APPLICATIONS
Pump outlet cannula and rigid pipes
Press-fitted socketed smooth nozzles
Grit removal plugs
This type of sealing is primarily used in the automotive sector to seal many engine components.
PERFORMANCES
Robust sealing for automobile fluid circuits
0 ppm application quality on large series
Replaces Banjo-type threaded connectors
Effective on aluminium, steel or stainless steel bar-turned tubing or seamless drawn tubing
Replaces in-line bonded grit removal caps
#4 / SEALING COMBINED WITH LOCKING FUNCTION
Fasteners to be sealed can also be secured to prevent loosening by adding a locking product to the threading: a micro-encapsulated adhesive such as threadlock or polyamide resin for repositionable parts.
Under some conditions (fluid, pressure, assembly design), locking products can also provide the sealing function on the threading.
CHARACTERISTICS AND PRODUCTS
We offer a wide range of products to meet a wide variety of sealing needs.
*Datasheet upon request
QUALITY
Our sites are all ISO 9001 certified and our quality systems meet the specific requirements of the automotive and aeronautics industries.
CERTIFICATIONS
Our products have been certified by a variety of automotive standards:
- Renault CDC 39.02.010
- PSA B14.12.35
- Volvo STD 1262.2
- Ford WX 201
