Steel component progressing from oily and rusted to cleaned and zinc-phosphated
Macro Coats
Pvt. Ltd.
TECHNICAL PRODUCT BROCHURE

MacroCoats technical brochure · 2026

Industrial surface treatment.Product portfolio.

Twenty-one production chemistries for cleaning, conversion coating, passivation, bath control and corrosion protection.

21Active formulations
04Product families
30+Years of R&D
OEMValidated supply chain
Macro Coats
Product portfolio · Contents

Portfolio contents

One brochure.
Four product families.

Each profile states the chemistry, operating window, purpose and primary application. Follow the family index through the complete range.

Spray degreasing stage on a pretreatment line
01 · 06 products

Surface preparation

Cleaners, de-rusters and rework chemistry

Products 01–06p. 03
Gears in a phosphating conversion bath
02 · 07 products

Phosphating

Iron, zinc and manganese systems

Products 07–13p. 04
Components with passivated conversion finishes
03 · 05 products

Passivation

Chrome and chrome-free protection

Products 14–18p. 05
Technician verifying a phosphating bath
04 · 03 products

Bath auxiliaries

Line control and final protection

Products 19–21p. 06
Application fitp. 07
Contactp. 08
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Macro Coats
Product portfolio · Family 01
Family 01 · 06 products

Surface preparation

Build the coating on a clean, active and dimensionally controlled substrate.

UNKLEAN-ALSurface prep

Aluminium Degreaser

Alkaline · pH 10–11.5 · Low foam

Non-etching cleaner for stamping oils and machining coolants without attacking the native aluminium oxide layer.

Best fit
Extrusions, die-cast parts, HVAC and anodising lines.

01
UNKLEAN-SPSurface prep

Heavy-Duty Degreaser

Alkaline · pH 11–13 · High load

Removes forming oils, neat cutting fluids and anti-rust compounds from production metalwork.

Best fit
Stamped steel, machined parts and heavy fabrications.

02
UNISOLVE H3Surface prep

Heavy-Duty De-rust

Inhibited HCl · High strength

Fast removal of heavy rust, mill scale and weld heat scale with controlled base-metal attack.

Best fit
Structural steel, hot-rolled sections and rework.

03
UNISOLVESurface prep

Inhibited De-rust

H₂SO₄ / H₃PO₄ · Inhibited

Light-to-medium rust removal with lower hydrogen-embrittlement risk and a mildly passivated finish.

Best fit
Cold-rolled and high-tensile steel.

04
UNKLEAN 3 IN 1Surface prep

Three-in-One Treatment

Clean · De-rust · Phosphate

Single-stage chemistry for light-duty jobs where a full multi-tank pretreatment line is not practical.

Best fit
Job shops, maintenance and field fabrication.

05
UNIKSTRIPSurface prep

Paint & Scale Stripper

Alkaline · pH 13–14 · 60–80°C

Strips cured powder coat, liquid paint and scale while preserving the underlying metal geometry.

Best fit
Rejected parts, production jigs and conveyor hooks.

06
Operating parameters are indicative03
Macro Coats
Product portfolio · Family 02
Family 02 · 07 products

Phos­phating

Control coating weight, crystal structure and the foundation for downstream paint or oil.

UNIKOAT ZN-NIPhosphating

Zinc-Nickel Phosphate

Fine crystal · 2–4 µm · 40–55°C

Premium fine-crystal zinc-nickel system developed for high paint adhesion under CED and KTL.

Best fit
Automotive body-in-white and Tier-1 stamped parts.

07
UNIKOAT LT450Phosphating

Zinc Phosphate — Hot

40–60°C · 4–10 g/m²

Standard-temperature conversion coating for reliable paint adhesion in seven-stage production lines.

Best fit
Automotive stampings, appliances and equipment.

08
UNIKOAT LT700Phosphating

Zinc Phosphate — RT Heavy

Ambient · 7–15 g/m²

Room-temperature heavy coating that cuts heating demand while retaining robust ferrous-metal protection.

Best fit
Energy-sensitive and heavy-engineering lines.

09
UNIKOAT LT450-RTPhosphating

Zinc Phosphate — RT Fine

Ambient · 2–5 g/m² · Fine crystal

Fine-crystal ambient system tuned for paint anchor profile on close-tolerance steel components.

Best fit
Powder coating and thin-wall stampings.

10
UNIKOAT LT2000Phosphating

Zinc Phosphate — Heavy

65–75°C · 15–25 g/m²

High-build zinc phosphate for maximum standalone corrosion protection in demanding service.

Best fit
Railways, coastal equipment and heavy engineering.

11
UNI-IRON PHOSPHATEPhosphating

Iron Phosphate

45–65°C · 0.3–1.0 g/m²

Economical amorphous conversion coating with low sludge generation for compact paint lines.

Best fit
Appliances, furniture, doors and light fabrication.

12
UNI-MANGANESE PHOSPhosphating

Manganese Phosphate

80–98°C · 5–30 g/m²

Dense oil-retaining crystal structure for wear resistance, break-in lubrication and anti-galling.

Best fit
Gears, shafts, railway components and firearms.

13
Operating parameters are indicative04
Macro Coats
Product portfolio · Family 03
Family 03 · 05 products

Passivation & sealing

Extend corrosion performance with chrome and chrome-free conversion and post-treatment routes.

UNIPASS-AL CHROMEPassivation

Aluminium Passivation — Chrome

Cr⁶⁺ · Yellow iridescent · 200+ h

Self-healing chromate conversion for maximum corrosion performance and a strong base for paint.

Best fit
Aerospace, defence and high-spec hardware.

14
UNIPASS-AL NON CHROMEPassivation

Aluminium Passivation — Cr-Free

Zr/Ti · REACH · RoHS · EU ELV

Chrome-free conversion layer designed as a compliant drop-in route for export supply chains.

Best fit
Automotive aluminium, electronics and HVAC.

15
UNIPASS-ALPassivation

Aluminium Passivation — Standard

Clear film · 72–120 h

Cost-controlled clear conversion coating compatible with powder coat, liquid paint and lacquer.

Best fit
Profiles, hardware and general industrial aluminium.

16
UNIPASS-FE CHROMEPassivation

Iron Passivation — Chrome

Cr⁶⁺ · Post-phosphate · 200+ h

Self-healing post-phosphate sealer for higher corrosion resistance where chrome remains permitted.

Best fit
Severe service and non-ELV applications.

17
UNIPASS-FE NON CHROMEPassivation

Iron Passivation — Cr-Free

Zr/organic · 120–200 h

Compliant post-phosphate sealer with no hexavalent chromium and no required equipment change.

Best fit
European automotive and appliance supply chains.

18
Route selection

Select the conversion route against substrate, corrosion target, paint system and destination-market compliance.

Chrome · Chrome-free · Clear film
Operating parameters are indicative05
Macro Coats
Product portfolio · Family 04
Family 04 · 03 products

Bath auxiliaries

Stabilise crystal growth, accelerate conversion and protect finished parts through storage and transit.

Bath control

Routine titration and replenishment keep conversion weight, crystal structure and line throughput within the approved process window.

Verify · Replenish · Record
UNIKCONDITIONERBath auxiliary

Titanium Conditioner

Ti colloid · pH 7–9

Pre-phosphate nucleation treatment for a tighter, finer and more uniform crystal structure.

Best fit
Zinc and manganese phosphate lines.

19
UNIKTONNERBath auxiliary

Phosphate Accelerator

Oxidising · NO₂⁻ / ClO₃⁻

Controls hydrogen evolution, shortens process time and supports uniform coating in complex geometry.

Best fit
High-throughput and blind-hole components.

20
UNIKGUARD RPIBath auxiliary

Rust Preventive Compound

Water-displacing · 6–12 months

Thin self-levelling protective film for storage, export and inter-process transit after treatment.

Best fit
Finished ferrous parts and post-phosphate storage.

21

Operating parameters are indicative. Final concentration, temperature, dwell time and replenishment plan are confirmed against the actual line, substrate and incoming water.

Request technical datasheets[email protected]
Operating parameters are indicative06
Macro Coats
Product portfolio · Applications

Application fit

Proven where process variation is expensive.

MacroCoats chemistry supports high-volume manufacturing, specification-led supply chains, heavy service conditions and multi-plant standardisation.

Automotive body-in-white on a surface pretreatment line
01

Automotive & Auto Ancillaries

Zn · Fe · Cr-free routes

Aerial view of railway tracks and a passenger train
02

Railways & Heavy Engineering

Mn · Heavy Zn · RPI

Angle grinder throwing sparks during metal fabrication
03

Manufacturing & Fabrication

Fe · Zn · Surface prep

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Macro Coats
Pvt. Ltd.

Application-led technical support

Build a more controlled treatment line.

Share the substrate, production volume, current process and corrosion target. Our technical team will identify the right chemistry and operating window.

01Substrate & soil
02Line & throughput
03Performance target
Automated components moving through a metal surface-treatment line
From bath design to production control

Specialty chemical formulations engineered for consistency, scale and control. Formerly Technical Electroless Chemical Co. Pvt. Ltd.

Portfolio

PhosphatingSurface preparationPassivationBath auxiliaries

Resources

Corporate brochureTechnical blogTechnology & compliance
© 2026 Macro Coats Pvt LtdEngineered chemistry · Since 1993