Our installation environment is coastal. What enclosure specification does Frigate recommend?

For coastal environments, Frigate specifies 304 stainless or zinc phosphate pre-treated CRCA steel with a two-coat system — epoxy primer 40–60 µm plus polyester topcoat 60–80 µm — delivering ≥1,000 hrs salt spray resistance. Where the enclosure is directly exposed to salt spray or splash, 316L stainless with zirconium pre-treatment and polyester topcoat is the correct specification. Both the enclosure material and the coating system are confirmed at the enquiry stage against your site location and installation exposure before fabrication begins.

Powder Coated Enclosures

Powder coated enclosures manufactured with surface finish quality as the primary output — not an afterthought after fabrication. Pre-treatment chemistry matched to substrate material, powder formulation selected per end-use environment, DFT measured and recorded on every lot, and colour verified by spectrophotometer (ΔE ≤1.5) against your approved standard before dispatch. Supplied on Frigate-fabricated enclosures or applied to your supplied components as a finishing service.

Primary Material

CRCA steel IS 513 / EN 10130 CR4; 304 SS ASTM A240; 316L SS where corrosive environment specified

Sheet Thickness

Structural frame: 2.0–3.0 mm; door and side panels: 1.5–2.0 mm; internal plates: 1.5 mm

External Dimensional Tolerance

±0.5 mm on all external dimensions; ±1.0 mm diagonal squareness

Component Mounting Holes

±0.3 mm true position; CNC-punched to locked programme

IP Rating

IP21 / IP31 / IP41 / IP54 / IP65 — verified on assembled enclosure

*First-run lead times include finish specification confirmation, pre-treatment programme development, first article with DFT and colour measurement, and adhesion test.

Product Description

Surface preparation is the most critical variable in powder coat adhesion and long-term corrosion performance — not the powder formulation or the DFT. Frigate applies substrate-matched pre-treatment chemistry on every component: zinc phosphate for CRCA steel where corrosion resistance and adhesion are both required; iron phosphate for indoor steel where cost is the primary driver; zirconium conversion for aluminium and galvanised substrates; chromate conversion where maximum corrosion resistance on aluminium is specified. The pre-treatment sequence — number of stages, bath chemistry, temperature, and dwell time — is confirmed against the substrate and the end-use environment, not applied as a single standard process across all incoming material.

Door Configuration

Single; double; rear access; glazed — per drawing

Door Seal

EPDM or PVC compression gasket for IP41 and above

Internal Provisions

35 mm DIN rail, mounting plate, EIA rail, earthing studs — installed per drawing

Edge Finish

All edges deburred R0.3–0.5 mm before pre-treatment

Pre-Treatment Records

Bath chemistry, temperature, and dwell time recorded per batch; records retained per lot

Standard DFT

60–80 µm; measured at minimum 5 positions per face per lot

Heavy-Duty DFT

80–120 µm; two-coat epoxy primer + polyester topcoat for coastal and high-corrosion environments

Gloss Level

Matt 10–20 GU; semi-gloss 30–50 GU; gloss 70–90 GU; verified by 60° gloss meter per lot

UV Resistance

ISO 4892-2; 25+ year outdoor service rating (polyester formulation)

Environmental Compliance

RoHS 3; REACH SVHC <0.1% w/w; chrome-free pre-treatment options available

Technical Advantages

DFT is measured at a minimum of five points per component face using a calibrated magnetic gauge and recorded per lot — not batch-averaged or visually estimated. Colour is verified by spectrophotometer against the approved first article standard on every production lot, with ΔE ≤1.5 as the acceptance criterion. For complex enclosure geometry with deep recesses, internal corners, and edge faces, Frigate’s application programme accounts for the Faraday cage effect that causes powder to resist deposition in recesses — probe gun techniques and gun position adjustments are applied to maintain DFT coverage consistency across the full component geometry, not just on flat external faces.

Let's Get Started

Need reliable Enclosure for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Industry Application

Solar & Outdoor Power Equipment

Polyester or TGIC-free polyester on zinc phosphate pre-treated steel for solar inverter enclosures, outdoor distribution panels, and field-mounted control equipment. UV resistance and salt spray performance confirmed at first article. 25+ year outdoor service rating.

Electrical Panel & Cabinet Production

Epoxy-polyester hybrid on zinc phosphate or iron phosphate pre-treated CRCA for electrical distribution panels, control cabinets, and MCC enclosures. Consistent RAL 7035 or custom colour across production batches — spectrophotometer verified per lot.

Premium Product & Equipment Housings

Polyurethane formulation for equipment housings, medical device enclosures, and consumer-facing product casings where surface hardness, scratch resistance, and cosmetic appearance are primary requirements. Colour matched to brand standard by spectrophotometer.

Industrial & Process Equipment

Two-coat systems (epoxy primer + polyester topcoat) for industrial machinery enclosures, chemical plant control panels, and process equipment housings in corrosive environments. Salt spray ≥1,000 hrs on two-coat system.

Aluminium Enclosures & Profiles

Zirconium or Alodine pre-treatment on aluminium enclosures, extrusion profiles, and die-cast housings before polyester or polyurethane topcoat. Pre-treatment chemistry selected for aluminium substrate — not a steel process applied to aluminium incoming material.

Subcontract Finishing Service

Powder coating applied to components supplied for finishing — enclosures, panels, brackets, and structural fabrications from your own supply or other fabricators. Substrate confirmation, pre-treatment selection, and finish specification agreed before the first batch enters the line.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

Solar Inverter Enclosure

units per month

Bento Boxes for D2C Segment

Units Manufactured Monthly

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Defence-Grade Cable Supply

Cost savings

0 %

Flange Assembly for Pump

Faster Production

0 %

Having Doubts? Our FAQ

We need an enclosure with a specific brand colour that must match across production batches over multiple years. How does Frigate manage that across both fabrication and finish?

Frigate retains the approved first article enclosure — dimensional programme, press brake settings, pre-treatment sequence, powder formulation, and colour standard — as a single locked production reference. Every re-order batch is manufactured and finished against that reference. Colour is verified by spectrophotometer (ΔE ≤1.5) on every lot. Your brand colour doesn’t drift between batches because the entire production programme — not just the finishing stage — is retained and controlled.

We currently source enclosures and powder coating from two separate suppliers. What does consolidating to Frigate change?

Consolidating to a single supplier removes the interface gap between fabrication quality and finish quality. Surface preparation before powder coat is directly affected by the enclosure’s fabrication quality — weld spatter, sharp edges, and surface contamination all undermine pre-treatment effectiveness and adhesion. When Frigate fabricates and finishes the enclosure, the pre-treatment programme is matched to the substrate condition that Frigate’s fabrication process produces — not applied to an incoming component whose surface condition is unknown.

We need different IP ratings on different enclosure variants — but the same colour and finish. Can Frigate supply both under one programme?

Yes. Both variants are managed under a single programme with a shared colour standard, matched pre-treatment sequence, and unified documentation package. The IP54 and IP65 variants differ in door seal specification and gland entry configuration — both are confirmed at the DFM review stage and locked at first article. Colour and finish parameters are identical across both variants and verified against the same approved first article standard.

We're designing a new enclosure and haven't finalised the geometry yet. When should Frigate be involved?

Before the geometry is finalised — specifically before sheet thickness, bend radius, and internal mounting provisions are locked. Decisions made at the drawing stage directly affect both fabrication quality and finish quality: sheet thickness affects structural integrity and DFT uniformity; internal corner radii affect powder coverage in recesses; weld joint positions affect surface preparation effectiveness. Frigate’s DFM review covers both fabrication and finish considerations simultaneously — changes at drawing stage cost nothing; changes after first article do.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Components Built for Critical Performance

Engineered Products for Critical Applications

Powder Coated Enclosures

Product Description

Door Configuration

Door Seal

Internal Provisions

Edge Finish

Pre-Treatment Records

Standard DFT

Heavy-Duty DFT

Gloss Level

UV Resistance

Environmental Compliance

Technical Advantages

Let's Get Started

Industry Application

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Powder Coated Enclosures

Get Latest Price

Powder Coated Enclosures

Get Latest Price