Powder Coating Services Vasai - 7-Tank, 3 Ovens, Job Work Vasai . Mumbai . Palghar
7-Tank Chemical Pre-Treatment · 2 Electrostatic Booths · 3 Curing Ovens · Crane-Operated Large Format · Full RAL Range · ISO 9001:2015
Aero Enterprises Unit I, Vasai Phata provides industrial powder coating services in Vasai, Mumbai, and Palghar — a full in-house powder coat finishing system built on a 7-tank chemical pre-treatment line, two electrostatic spray booths, and three thermostatically controlled curing ovens including a crane-operated 4×10×10 ft oven for large structural assemblies. ISO 9001:2015 certified powder coating services for MS, CR, GI, SS 304, and aluminium components across the complete RAL colour range, with Class 5B cross-hatch adhesion compliance and DFT verification on every production batch.
Expertise and Experience
Aero Enterprises Unit I Vasai Phata operates a full industrial powder coat finishing system built around a 7-tank chemical pre-treatment line, two electrostatic spray booths, and three thermostatically controlled curing ovens ranging from 4×5×6 ft to 4×10×10 ft. The largest oven is crane-operated and tank-fed, handling oversized structural assemblies, large enclosure panels, and fabricated frames that cannot be processed through standard batch finishing systems. This finishing infrastructure is not a secondary service bolted onto a fabrication shop — it is an integrated production stage at Unit I where every component that goes through stamping, bending, and welding on the same floor exits with a verified, dimensionally consistent, adhesion-tested powder coat finish. No subcontracting. No batch handoff to an external coater. No coating quality variables outside Aero Enterprises' direct process control.
Why Our Process Wins
Powder coat failure in the field is almost never a powder quality problem. It is a surface preparation failure. A coating applied over inadequately degreased steel, insufficient phosphate conversion, or an unchecked pre-treatment tank concentration will pass visual inspection on day one and delaminate at 12 months. At Aero Enterprises Unit I, the 7-tank pre-treatment line is the non-negotiable first stage of every coating job. Tank chemical concentrations are checked and adjusted daily. The Class 5B cross-hatch adhesion result that every batch achieves is a direct output of pre-treatment discipline — not the powder brand or the spray booth.
Machinery · Unit I Vasai Phata
7-Tank Chemical Pre-Treatment Line, 2 × Electrostatic Powder Spray Booths, Oven 1 (4×5×6 ft), Oven 2 (4×8×4 ft), Oven 3 (4×10×10 ft — Crane-Operated, Tank-Fed). All ovens thermostatically controlled with temperature data logging at Unit I Vasai Phata.
Core Capabilities
Verification Protocol
Daily pre-treatment tank concentration check and adjustment before production begins. Degreaser concentration, phosphate bath concentration, and rinse water conductivity measured and corrected to specification every morning. No batch enters the coating line on an out-of-specification tank.
DFT (Dry Film Thickness) measurement using calibrated digital magnetic thickness gauge on every production batch. Minimum 10 measurement points per component covering flat faces, inside bend radii, punched hole edges, and recessed features. Batches failing minimum 50 microns are stripped and recoated before dispatch.
Cross-hatch adhesion test (ISO 2409) on sample components from every batch. Class 5B result required before batch dispatch is approved. Any result below Class 5B triggers a pre-treatment investigation before recoating.
Curing temperature curve monitoring using oven data logger to verify that component metal temperature reaches and holds the specified cure temperature for the full dwell time required for complete polyester crosslinking. Under-cured powder coat passes visual inspection but fails adhesion in service.
Impact resistance test on batch samples using a falling weight impact tester to verify the cured coating does not crack or delaminate under mechanical impact. Relevant for components subject to handling, installation, and vibration loads.
Colour and gloss conformity check against a calibrated reference panel for every batch. Colour variation between delivery batches is a visible assembly problem for OEM clients. Reference panel matching is performed before batch approval — not by the client at goods inward.
Stamping Operations
Six stamping and forming operations run simultaneously across the 20-press floor. Each has a correct application — specifying the wrong operation produces defects that cannot be corrected downstream.
Degreasing
Stage 1 and 2 of the 7-tank powder coating process. Alkaline degreaser removes stamping oils, cutting lubricants, rust inhibitors, and surface contamination from all metal surfaces before phosphating. The degreaser concentration is checked daily. An under-strength degreaser produces an invisible contamination film that causes delamination — not immediately, but at 6–12 months in service.
Applications
All metals — MS, CR, GI, SS, Aluminium — before any coating sequence
Phosphating
Stage 4 of the 7-tank process. Zinc phosphate or iron phosphate conversion coating builds a crystalline microstructure on the base metal surface that the powder coat bonds to mechanically. This is the adhesion layer — without it, the coating is bonded only to the metal oxide, not the metal itself. Phosphate crystal weight and coverage are verified by concentration measurement and periodic panel testing.
Applications
MS, CR, HR — all ferrous components requiring outdoor, industrial, or corrosion-rated finish
Electrostatic Spray
Powder particles are electrostatically charged in the spray gun and attracted to the grounded metal component surface. This produces uniform coverage including inside bend radii, punched hole bores, and recessed features that manual spray misses. Two dedicated booths allow simultaneous processing of different RAL colours without cross-contamination between batches.
Applications
All components — electrostatic application is standard for all powder coat jobs at Unit I
Curing
Coated components are loaded into one of three curing ovens and held at 180–220°C for the dwell time required for complete polyester crosslinking. Under-curing — reaching temperature but not holding it long enough — produces a coating that passes visual and initial adhesion checks but fails impact resistance and outdoor UV exposure. Oven temperature is data-logged on every batch.
Applications
All coated components — oven allocated by component size and batch volume
Epoxy Priming
A zinc-rich epoxy primer coat is applied before the polyester top coat for components specified for outdoor, coastal, or chemical-exposure environments. The epoxy primer provides sacrificial cathodic protection — if the top coat is scratched or chipped in service, the zinc in the primer oxidises preferentially and protects the base metal from developing a rust front under the coating.
Applications
Outdoor structural components · Coastal zone installations · Solar tracker hardware · Flood light brackets
DFT Verification
Dry Film Thickness is measured using a calibrated digital magnetic thickness gauge on every production batch. A minimum of 10 measurement points per component type covers flat faces, inside bend radii, punched hole edges, and recessed features. Powder coating thickness on bend radii and hole bores is always thinner than flat faces — measuring only flat faces produces a passing result on a batch with inadequate coverage where it matters.
Applications
Every batch — DFT verification is mandatory before batch dispatch approval at Unit I
Progressive vs Compound
vs Deep Draw Die
Die type determines per-part cost, tooling investment, and achievable tolerance. Wrong die type for the volume produces either over-investment or inadequate batch consistency.
Polyester Powder
Best For
Indoor and outdoor fabricated components, LED brackets, furniture hardware, enclosures — the correct choice for 90% of jobs
Epoxy-Polyester
Best For
Electrical enclosures, indoor panels, and components where chemical resistance is required but UV exposure is limited — epoxy yellows under direct UV
Zinc-Rich Epoxy Primer + Polyester
Best For
Outdoor structural components, solar tracker hardware, flood light brackets, coastal and industrial zone installations requiring maximum corrosion resistance
Manufacturing ID · Unit I Vasai Phata
Unit I Capability
7-Tank Chemical Pre-Treatment Line, 2 × Electrostatic Powder Spray Booths, Oven 1 (4×5×6 ft), Oven 2 (4×8×4 ft), Oven 3 (4×10×10 ft — Crane-Operated, Tank-Fed). All ovens thermostatically controlled with temperature data logging at Unit I Vasai Phata.
Industries Served
Industrial Applications
LED Lighting Manufacturers
Housing shells, heat sink enclosures, driver compartment bodies, flood light brackets, and mounting hardware requiring consistent RAL colour, scratch-resistant matte or gloss finish, and outdoor UV-stable polyester coating for field-installed lighting assemblies.
Tracker OEMs
Structural mounting brackets, pivot arm assemblies, channel sections, and fabricated frame components for solar tracker systems requiring corrosion-resistant powder coat finish for outdoor installation across Maharashtra's varied climate zones.
Automotive OEMs
Chassis brackets, body components, and structural hardware requiring consistent coating adhesion, impact resistance, and colour conformity across high-volume production batches for Tier-1 and Tier-2 automotive supply chain delivery.
Furniture Manufacturers
Wall unit panels, bracket hardware, shelf support components, and modular frame sections requiring consistent RAL colour across multi-batch deliveries for assembly into finished furniture products.
Stationery Manufacturers
Stamped and formed hardware components requiring clean, consistent powder coat finish for consumer-facing stationery product assemblies.
Sheet Metal Component and Parts Clients
Industrial enclosure bodies, electrical panel frames, HVAC support brackets, fabricated structural assemblies, and custom sheet metal components across the full material and geometry range processed at Unit I.
Industrial Powder Coating | Aero Enterprises Vasai — Technical FAQ
Common technical and commercial questions about industrial powder coating | aero enterprises vasai at Aero Enterprises Unit I, Vasai Phata.
What is powder coating?
Powder coating is a dry finishing process where electrostatically charged powder particles are sprayed onto a grounded metal component and then cured in an oven at 180–220°C to form a hard, durable, and protective finish. The result is significantly tougher than conventional liquid paint — more resistant to chipping, scratching, corrosion, and UV degradation. Powder coating is used across industrial, architectural, automotive, and consumer product manufacturing for both functional corrosion protection and decorative surface finish.
What is the 7 tank process for powder coating?
The 7-tank powder coating pre-treatment process is the chemical surface preparation sequence performed on metal components before powder is applied. At Aero Enterprises Unit I, the 7-stage sequence covers: Stage 1 — alkaline degreasing (removes oils, lubricants, and contamination), Stage 2 — water rinse, Stage 3 — activation (surface conditioning for phosphate crystal nucleation), Stage 4 — zinc phosphate or iron phosphate conversion coating (builds the adhesion layer), Stage 5 — water rinse, Stage 6 — passivation sealing rinse, Stage 7 — DI water final rinse before booth entry. Tank concentrations are verified and adjusted daily. This sequence is the reason Aero Enterprises achieves Class 5B cross-hatch adhesion on every batch — not the powder brand.
What is the powder coating process step by step?
The complete powder coating process at Aero Enterprises Unit I runs in four stages: (1) 7-tank chemical pre-treatment — degreasing, phosphating, and sealing to prepare the metal surface for adhesion; (2) electrostatic powder spraying — charged powder particles applied uniformly to the grounded component in dedicated spray booths; (3) oven curing — components held at 180–220°C in thermostatically controlled ovens for complete polyester crosslinking; (4) quality verification — DFT measurement, cross-hatch adhesion test (ISO 2409), impact resistance test, and colour conformity check before batch dispatch approval.
What is powder coating thickness and how is it measured?
Powder coating thickness — measured as Dry Film Thickness (DFT) — is the depth of the cured coating on the component surface. At Aero Enterprises Unit I, the target DFT range is 60 to 120 microns on flat faces and a minimum of 50 microns on inside bend radii and punched hole bores. DFT is measured using a calibrated digital magnetic thickness gauge on a minimum of 10 measurement points per component type on every production batch. Coating on bend radii and hole bores is always thinner than flat faces — measuring only flat faces produces misleading results.
What is epoxy powder coating and when is it used?
Epoxy powder coating uses an epoxy resin base instead of polyester, giving it superior chemical resistance and adhesion compared to standard polyester powder. It is used for electrical enclosures, indoor panels, and components requiring chemical resistance. The limitation of epoxy powder is UV instability — it yellows and chalks under direct outdoor sunlight. For outdoor applications, epoxy powder is used as a primer coat under a polyester top coat, combining epoxy's adhesion and chemical resistance with polyester's UV stability. At Aero Enterprises Unit I, zinc-rich epoxy primer combined with a polyester top coat is available for outdoor and coastal installation components.
What is MS powder coating?
MS powder coating — mild steel powder coating — is the application of a polyester or epoxy-polyester powder coat finish to mild steel (MS) fabricated components. Mild steel requires the full 7-tank pre-treatment sequence before coating, including zinc phosphate conversion coating, because bare MS oxidises rapidly and provides poor adhesion without a phosphate conversion layer. At Aero Enterprises Unit I, MS powder coating covers all fabricated mild steel components including brackets, enclosures, frames, panels, and hardware across the full RAL colour range.
Can stainless steel be powder coated?
Yes. SS powder coating at Aero Enterprises Unit I uses a modified pre-treatment chemistry appropriate for stainless steel — standard zinc phosphate chemistry for MS does not provide the same conversion crystal structure on stainless surfaces. SS 304 and SS 316 components are pre-treated with appropriate chemistry, then electrostatically coated and cured at the standard temperature profile. SS powder coating is specified when a specific RAL colour or textured finish is required on a component that also needs the base corrosion resistance properties of stainless steel.
What is powder coating near me in Vasai?
Aero Enterprises Unit I at Survey No. 109, Richard Compound, Manchipada Road, Vasai Phata, Vasai East, Palghar 401208 provides industrial powder coating services in Vasai, Palghar, Virar, Nalasopara, Bhayandar, Mira Road, and the broader Mumbai metro region. The facility operates a 7-tank pre-treatment line, two electrostatic spray booths, and three curing ovens including a crane-operated 4×10×10 ft oven for large and heavy assemblies. Contact: +91 84591 21717.
What powder coating colours are available at Aero Enterprises?
Aero Enterprises Unit I stocks standard production colours in regular inventory including RAL 9005 matt black, RAL 9003 signal white, RAL 7035 light grey, RAL 6005 moss green, and RAL 5002 ultramarine blue. The full RAL colour standard is available with minimum order quantity and colour change lead time for non-stock colours. Finish options include matte, satin, gloss, textured, and wrinkle finishes in polyester, epoxy-polyester, and zinc-rich epoxy primer powder types.
What is the powder coating cost for sheet metal components?
Powder coating cost for sheet metal components at Aero Enterprises Unit I is calculated per square foot of surface area, adjusted for component geometry complexity, pre-treatment requirements, colour specification, and batch volume. Components with complex geometry — deep recesses, small hole patterns, or tight internal corners — require additional spray time for coverage consistency. Zinc-rich epoxy primer plus polyester top coat is a two-coat process and is priced accordingly. Contact the engineering desk at +91 84591 21717 for a specific coating cost against your component drawing and batch volume.
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Contact our engineering desk directly. We respond with technical specifics, not sales language.
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for Industrial Powder Coating | Aero Enterprises Vasai
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