Pre-applied threadlocking, sealing and functional coating solutions. Automated application, controlled torque, assembly ready fasteners. Authorised Indian partner and applicator for Tecnologic 3, Italy.
Move the process away from the assembly line
Started in 2022 under Mr. Gaurav Khurana, PR Preapplied Services is the authorised partner in India for Tecnologic 3 of Gorgonzola, Milan, whose water based pre-applied chemistry is used on fasteners worldwide. We apply threadlockers, thread sealants, anti-seize compounds, nylon locking patches and functional lubricants directly onto the component on automated lines here in Rohtak, so the fastener reaches your assembly line ready to install. These systems are specified by major OEMs including JCB, Piaggio and Renault for thread lock applications.
Authorised Indian partner and applicator for Tecnologic 3Tecnologic 3 of Italy develops the water based pre-applied chemistry for threadlocking and related fastener applications. It is applied on our production lines in Rohtak.Water based chemistryMicroencapsulated threadlockingPre-applied fastener treatmentControlled torque performanceProduction line application
Around 1 crore components a month on SPM lines.
Coming in: nylon spray coating machine, two SPM flow coating lines, an SPM small screw coater and two vertical disc coaters.
- Open bottle
- Apply chemical
- Control quantity
- Assemble
- Manage curing
Five extra steps, every one of them operator dependent.
- Fastener
- Surface preparation
- Controlled pre-applied treatment
- Curing or setting
- Torque and functional inspection
- Packed, ready to assemble
- No bottle at the assembly line
- No manual adhesive application
- No operator dependent dispensing
Locking performance built into the fastener
Pre-applied microencapsulated threadlockers keep their reactive components dormant until assembly. As the fastener is installed, the mating threads break the capsules, the adhesive system cures and a bonded locking interface forms in the thread. Nothing is dispensed at the station; the chemistry is already on the part.
Select the right locking performance
Low strength
Controlled locking where easy disassembly still matters.
- Small fasteners
- Instrumentation
- Electrical components
- Light duty assemblies
Medium strength
General purpose vibration resistance.
- Automotive components
- Machinery
- Brackets
- General engineering fasteners
High strength
Higher resistance to loosening for critical joints.
- Automotive
- Heavy equipment
- High vibration assemblies
- Critical threaded joints
High temperature
For assemblies that run hot.
- Engine compartments
- Exhaust related assemblies
- Heavy duty machinery
Tecnologic pre-applied threadlocking systems
Strength, torque, temperature and application values for each system are taken from the current Tecnologic 3 technical data sheets and confirmed against your joint before we quote.
Tecnologic 15
For applications requiring controlled locking performance.
Tecnologic 70
For applications requiring increased resistance to loosening and vibration.
Tecnologic 150
For demanding assemblies where higher locking performance is required.
Sealing, locking and friction control, applied the same way
Pre-applied thread sealants
Where the joint must also stop leaks, a pre-applied sealant forms a sealing interface directly on the thread, for straight and tapered threads alike.
Under-head sealing
Some joints need sealing under the fastener head rather than on the thread. The treatment is applied in a controlled pattern to give a repeatable sealing face.
Nylon locking patch
For fasteners that need prevailing torque but will be removed and refitted in service, a nylon patch gives a reusable lock with no liquid adhesive.
Anti-seize and functional lubrication
Not every joint needs locking. Where threads must stay serviceable after heat, time or the weather, we apply anti-seize and lubricant in a controlled band.
Precision application, repeatable results
Automated production equipment lays controlled bands of functional material onto threaded components, seven stations from incoming part to packed box.
- 01Cleaning
Oil, dirt and surface contamination removed.
- 02Surface preparation
The thread surface prepared for consistent bonding or functional coating.
- 03Controlled application
The specified threadlocker, sealant, nylon patch, lubricant or anti-seize applied as a measured band.
- 04Curing or setting
Controlled process conditions take the coating to its functional state.
- 05Inspection
Application pattern, coverage and visual condition checked.
- 06Torque testing
Breakaway and prevailing torque measured against the applicable specification.
- 07Packing
Approved components packed and released for assembly.
Performance must be measured
A pre-applied threadlocker is not simply a coloured patch on a bolt. Its performance is verified on every batch before release.
Breakaway torque
The torque required to initiate movement of the fastener.
Prevailing torque
The resistance generated while the fastener continues to rotate.
Application pattern
Verification of the treated thread area.
Coating appearance
Visual inspection for consistent application.
Batch traceability
Production and inspection records held against the batch.
The application line
| Machine | Range or spec | Qty |
|---|---|---|
| Screw Coater (Taiwan) | 4 mm to 10 mm dia | 1 |
| Disc Coater (Indian) | 4 mm to 10 mm dia | 2 |
| Induction Heater (Taiwan) | 0 to 750 C heating | 1 |
| Box Oven (Indian) | 0 to 300 C heating | 1 |
| Torque Meter (Syscon) | 0 to 100 Nm | 1 |
| Vernier Calliper (Mitutoyo) | 0 to 100 mm | 2 |
Automated application
Production line application for repeatable results.
High volume processing
Built for automotive and industrial production requirements.
Functional testing
Torque and application inspection before release.
Technical support
System selection based on the joint requirement.
From fasteners to critical assemblies
Wherever a threaded joint has to hold, seal or come apart again on schedule, the treatment is specified to the joint, not the catalogue.
Automotive
- Engine components
- Chassis
- Brackets
- Suspension
- Brake systems
- Sensors
- Fluid connections
Commercial vehicles
- Heavy duty fasteners
- Chassis assemblies
- Engine components
- Hydraulic systems
Agricultural
- Tractors
- Implements
- Hydraulic systems
- Structural fasteners
Industrial
- Pumps
- Valves
- Compressors
- Machinery
- Electrical equipment
- General engineering
Your drawing. Your torque. Your specification.
We develop the appropriate pre-applied system from the joint, not from a catalogue. Tell us:
Every batch. Controlled and verified.
Same fastener. Same application. Same performance.
Incoming material
Process parameter control
Application control
Curing or setting
Visual inspection
Torque testing
Batch documentation
Final release
Why customers choose pre-applied treatment
Zero manual application at assembly
The locking or sealing function arrives already on the component.
Consistent application
Controlled application removes operator dependent variation.
Controlled torque
Functional testing verifies assembly performance before release.
Cleaner assembly process
No bottle, brush or liquid dispensing at your line.
Reduced process time
The treatment step moves upstream, out of your takt.
Ready to assemble fastener
The component reaches the station ready for installation.
Approved where it counts
The Tecnologic 3 systems we apply carry approvals from these manufacturers. The approvals belong to the chemistry, and we are the authorised hands applying it in India.
Plot No. 215, HSIIDC, Hissar Road, Rohtak 124001 (Haryana), India
Pre-applied performance. Assembly ready fasteners.
Product names, trademarks and technical specifications belong to their respective manufacturers. Tecnologic 3 product specifications are taken from the manufacturer's current technical documentation and confirmed per application before quoting.
Tell us about your joint
Send the fastener drawing, part number, thread size, material, surface finish, required torque, temperature, sealing requirement, monthly quantity and the OEM specification. We will recommend the pre-applied system and the application process.