Water-based GEOPERT® 500 by Zincotec® Korea and solvent-based Zintek® technology by MKS' Atotech, under one roof. High corrosion resistance, controlled thickness, a hydrogen-embrittlement-free coating route and functional topcoats.
RZF's major advantage is offering both proven platforms and selecting the right one for each job, rather than by habit. The coating system is chosen by component geometry, corrosion requirement, coating thickness, friction requirement, appearance, OEM specification, production volume and application method.
01 · Water-based
GEOPERT® 500
Zincotec® Korea
Water-soluble zinc-aluminium composite. Low VOC, chromium-free, bright silver. Published data: 1,500+ hours salt spray at 6 to 8 microns.
Explore the water-based route
02 · Solvent-based
Zintek® Technology
MKS' Atotech
Zintek® 200 and ONE HP silver basecoats, Zintek® 300 HP deep black, plus functional topcoats, combined to the part and the OEM specification.
Explore the solvent-based routeMillions of microscopic zinc and aluminium platelets, shingled in overlapping courses and sealed under a functional topcoat. Corrosion has to fight its way around every single flake before it ever reaches the steel.
Globally developed zinc flake chemistry, applied with controlled Indian manufacturing and inspection processes: the technology comes from Korea and Germany, the discipline and the accountability sit in Rohtak.
Zincotec® GEOPERT® 500 water-based chemistry and MKS' Atotech Zintek® solvent-based technology, applied under licence-grade process discipline.
Dip spin and automatic controlled application with controlled curing, so film thickness lands where the specification says it should.
Coating thickness control, salt spray testing, XRF inspection, torque and functional testing, and batch traceability on every lot.
Automotive, fasteners, commercial vehicles, tractors, chassis, brackets, washers, springs and engineering components.
We don't simply apply a coating. We select and control the complete coating system based on your functional requirement, and every step between your drawing and the approved component is owned by one team.

Drag the handle. Bare steel on the left, the finished part on the right, and everything in between is one pass through this plant.
Six reasons the drawing says zinc flake, and says it gets done here: the chemistry is proven, the route is embrittlement-free, and the plant has the capacity to hold a schedule.




Wherever a fastener or a stamped part has to survive salt, stone and torque documentation, from a passenger car chassis to a wind turbine flange.
The six questions every purchase department and design engineer asks before their first batch, answered the way we answer them on the phone.
A non-electrolytic thin-film corrosion protection: microscopic zinc and aluminium platelets are applied in overlapping layers, typically 6 to 8 microns thick, then cured. The zinc protects the steel sacrificially, in bright silver or deep black finishes.
Published data for the systems we apply: GEOPERT® 500 achieves 1,500+ hours to red rust at 6 to 8 microns (ASTM B117), Zintek® 200 achieves 1,000+ hours neutral salt spray with two layers, and Zintek® ONE HP up to 720 hours from a single coat — always subject to the process and test conditions.
Because the coating is applied without electrolysis, no hydrogen is generated in the coating process, which removes the hydrogen embrittlement risk that plating brings to class 10.9 and 12.9 fasteners. Final suitability is always evaluated against the full specification, substrate and heat treatment.
That depends on the component geometry, the corrosion target, friction and appearance requirements and the OEM specification. RZF runs both — water-based GEOPERT® by Zincotec® Korea and solvent-based Zintek® by MKS' Atotech — and selects the right system for the part.
Yes. The plant at HSIIDC, Rohtak coats up to 120 tonnes a month across a dip-spin line and an automatic line, and third-party job work is welcome. Send the part, substrate and salt spray target and we respond with a route and a price.
Bright silver and deep black basecoats, plus functional topcoats that add controlled coefficient of friction, consistent torque-tension behaviour, chemical resistance and UV stability.
Tell us the part, the substrate and the salt spray figure you have to hit, and we will tell you which route suits it.
Plot No. 215, HSIIDC, Hissar Road, Rohtak 124001 (Haryana), India
Open in Google Maps ↗PR Preapplied puts Tecnologic 3 thread lockers and sealants on the coated fastener, so it arrives at your station ready to run.