Are GI rolling shutters suitable for coastal areas?

Yes — GI rolling shutters are the recommended choice for coastal and marine environments because the zinc coating provides cathodic protection against salt-air corrosion.

20+ Years Lifespan

GI Rolling Shutter (Galvanized Iron) – India's Most Corrosion-Resistant Industrial Security Solution

Hot-Dip Galvanized • 45–85 Micron Zinc Coating • Up to 7,500 mm Width

A GI Rolling Shutter (Galvanized Iron Rolling Shutter) is a vertically-operating security shutter made from iron slats coated with a protective layer of zinc through hot-dip galvanization. This zinc coating prevents rust and corrosion, making GI shutters the preferred choice for factories, warehouses, coastal facilities, and commercial establishments exposed to moisture, humidity, or chemical environments. With a lifespan exceeding 20 years and operation cycles of up to 15,000, GI rolling shutters deliver long-term security at a cost-effective price — available in manual, gear-operated, and fully motorised configurations.

At Motorolls, every GI rolling shutter is precision-fabricated at our Pune facility to meet IS standards, with full customisation options for dimensions, slat gauge, motorisation, and safety features.

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Corrosion Resistant

Most Secured

Space Saving

Technical Specifications of Motorolls GI Rolling Shutters

Specification	Standard Range	Customisable
Slat Material	Hot-Dip Galvanized Iron (GI)	Yes (GI + powder coat)
Slat Thickness	0.8 mm – 1.2 mm	Up to 1.5 mm for heavy-duty
Slat Gauge	18 gauge – 20 gauge	16 gauge available
Slat Profile	75 mm curved (interlocked)	Flat slats, perforated slats
Maximum Width	Up to 7,500 mm (single shutter)	Wider via twin-shutter config
Maximum Height	Up to 6,000 mm	Up to 9,000 mm on request
Wind Resistance	Up to 120 km/h	Stiffener profiles for higher load
Operation Cycles	Up to 15,000 cycles	—
Operating Mode	Manual (gear/chain) or Motorised	Remote, push-button, access card
Motor Type	Tubular motor / side motor	UPS backup available
Surface Finish	Original galvanized (silver-grey)	Powder coating in custom RAL
Safety Features	Photocell sensor, bottom safety edge	GSM/IoT remote control

Need non-standard dimensions? Our engineers handle custom-width and non-rectangular openings. Call +91 87678 25705 for a site assessment.

How Hot-Dip Galvanization Makes Our Shutters Last 25+ Years

The single biggest advantage of a GI rolling shutter over plain MS shutters is hot-dip galvanization — a metallurgical process that creates a molecular-level bond between zinc and iron, not merely a surface coating.

Surface Preparation: Iron slats are degreased and pickled in dilute sulphuric acid to remove mill scale and oxidation.
Fluxing: Slats are dipped in zinc ammonium chloride flux solution, which promotes zinc adhesion.
Hot-Dip Immersion: Slats are immersed in a bath of molten zinc at approximately 450°C.
Zinc–Iron Alloy Formation: The zinc reacts with iron to form four intermetallic alloy layers, creating a coating harder than the parent metal.
Inspection: Coating thickness is verified by magnetic gauge testing; typical thickness ranges from 45–85 microns per IS 2629.

Why this matters for you: Unlike paint or electro-galvanizing that chip and flake, hot-dip zinc coating provides cathodic (sacrificial) protection — even if the surface is scratched, the zinc corrodes preferentially, protecting the iron beneath. This is why GI shutters in Mumbai's coastal humidity, Chennai's salt air, or Goa's marine environment outlast MS shutters by 3–5× with minimal maintenance.

GI Rolling Shutter vs MS vs Aluminium: Which Is Right for You?

Feature	GI Rolling Shutter	MS Rolling Shutter	Aluminium Rolling Shutter
Corrosion Resistance	🟢 Excellent (zinc-coated)	🔴 Poor (rusts without paint)	🟢 Excellent (natural oxide layer)
Strength / Security	🟢 High	🟢 High	🟡 Moderate
Weight	🟡 Medium	🟡 Medium–Heavy	🟢 Light
Cost (₹/sq ft)	🟢 ₹200–₹350 (mid-range)	🟢 ₹150–₹280 (lower)	🟡 ₹300–₹500 (higher)
Lifespan	🟢 20–30 years	🟡 10–15 years (with repainting)	🟢 25+ years
Maintenance Frequency	🟢 Very Low	🔴 High (annual painting)	🟢 Very Low
Best For	Industrial / coastal / humid	Dry indoor / budget use	Residential / showrooms
Noise Level	🟡 Moderate	🟡 Moderate	🟢 Low

Bottom Line: If your facility is in a coastal zone, near water bodies, in a humid industrial setting, or requires a shutter that survives 15+ years without annual repainting — GI is your answer.

7 Industries That Must Use GI Rolling Shutters in India

Coastal & Marine Facilities

Ports, fishing docks, beach resorts – salt-laden sea air corrodes plain steel in under 3 years. GI shutters are the only viable long-term option.

Chemical & Pharmaceutical Plants

Corrosive fumes, acidic vapours, and chemical splashback demand shutters that won't degrade. GI handles pH 6–12 environments safely.

Cold Storage & Food Processing

High-humidity refrigerated environments accelerate oxidation. GI shutters resist condensation corrosion while maintaining hygiene-compliant surfaces.

Fuel Stations & Petrol Pumps

Fuel vapours and constant moisture from forecourt washing make corrosion-resistant GI the standard choice across India.

Port Warehouses & Logistics Hubs

Heavy-duty loading bay operations require high wind resistance (up to 120 km/h) and structural rigidity – both hallmarks of GI construction.

Retail Shops in Humid Zones

Shop owners in Mumbai, Kolkata, Chennai, Kochi, Goa prefer GI over MS to avoid rust treatment and repainting.

11 Reasons to Choose Motorolls GI Rolling Shutters

Hot-Dip Galvanized Slats — 45–85 micron zinc coating per IS 2629
Interlocked Slat Design — impact load distribution & prying resistance
Single Push-Button Motorised Operation — remote & access card options
Wind-Resistant up to 120 km/h — cyclone-proof design
Customisable Dimensions up to 7,500 mm wide
Perforated & See-Through Slat Options

Photocell Safety Sensors — auto-reversal on obstruction
UPS/Battery Backup Motor Option
Individual Slat Replacement — low maintenance cost
Full-Service Under One Roof — site survey to AMC
IS Standard Manufacturing — BIS compliant

Our GI Rolling Shutter Installation Process: From Site Survey to Handover

Step 1

Free site survey & measurement (Day 1–2)

Step 2

Fabrication at Pune factory (Day 3–10)

Step 3

Professional installation (Day 11–14)

Step 4 & 5

Training & AMC support

Real-World Success Stories

📍 Cold Storage Facility, Navi Mumbai (2019 installation)
A food processing client required 8 GI rolling shutters for cold storage entry points. After 5+ years, all 8 shutters remain corrosion-free with zero slat replacements. The client has since ordered 4 additional shutters.

📍 Coastal Workshop, Ratnagiri (2021 installation)
A marine engineering workshop 200 metres from the Arabian Sea coastline previously used MS shutters that required repainting every 18 months. After switching to Motorolls GI shutters, maintenance costs dropped by 80% in year 1.

📍 Fuel Station Chain, Pune (2020–2022, 12 sites)
A regional fuel retailer standardised on Motorolls GI rolling shutters across 12 stations. Motorised operation with remote access reduced staff effort. Zero motor failures reported across all sites.

How to Choose the Right GI Rolling Shutter

Environment: Coastal, humid, or chemical exposure? GI is essential.
Opening Size: Larger openings may require heavier gauge (18 or 16 gauge).
Operation Frequency: High-cycle usage benefits from motorised operation.
Security Needs: Interlocked slats and reinforced bottom rails for high-security.
Automation: Remote, sensor, or access card integration available.

Frequently Asked Questions (FAQs)

GI (Galvanized Iron) rolling shutter is made from iron slats coated with a protective zinc layer through hot-dip galvanization. Unlike plain MS shutters, the zinc coating prevents rust even in humid, coastal, or chemically aggressive environments. GI shutters last 20–30 years with minimal maintenance, while uncoated MS shutters typically require repainting every 12–18 months.

GI rolling shutter prices in India typically range from ₹200 to ₹425 per square foot, depending on slat gauge, automation level, dimensions, and finish. A basic manual GI shutter for a standard 10×10 ft shop opening may cost ₹20,000–₹35,000 all-inclusive. Motorised units add ₹8,000–₹20,000 for the motor and control system.

For industrial use — warehouses, factories, and loading bays — 18 gauge (approx. 1.0–1.2 mm) GI slats are recommended. For light commercial use, 20 gauge (0.8 mm) is sufficient. Heavy-duty applications may require 16 gauge.

With proper installation and annual maintenance, hot-dip galvanized GI rolling shutters last 20–30 years in typical industrial environments. In highly corrosive coastal or chemical environments, lifespan is 15–20 years — still 3–5× longer than MS shutters.

Yes. Motorolls offers tubular motors, side drive motors, push-button control panels, remote control, and access card integration. Manual hand-crank backup is always provided for power failures. UPS/battery backup motors are also available.

GI shutters are better for any environment with moisture, humidity, or chemical exposure. MS shutters are cheaper upfront but require frequent repainting in humid conditions — making total cost of ownership higher over 5+ years. GI is the professional-grade choice for coastal areas, food processing, chemical plants, and outdoor-facing openings.

Yes — GI rolling shutters are the recommended choice for coastal and marine environments. Salt-laden sea air causes plain steel to corrode within 2–3 years. The zinc coating on GI shutters provides cathodic protection, ensuring long life.

Motorolls manufactures GI rolling shutters up to 7,500 mm (25 feet) wide in a single-curtain configuration, and up to 6,000 mm (20 feet) high. Larger openings can be accommodated using twin-shutter or multi-panel configurations.

Minimal maintenance: lubricate guide rails and barrel every 6 months, wipe slats quarterly, check spring tension annually, inspect motor brushes every 2 years. Motorolls offers Annual Maintenance Contracts (AMC) covering all scheduled servicing.

Motorolls GI rolling shutters include photocell sensors that auto-reverse on obstruction, bottom safety edge, manual emergency override (hand-crank), and optional GSM-based remote monitoring.

Yes. While GI shutters have a natural silver-grey galvanized finish, powder coating in any RAL colour can be applied over the galvanized base for aesthetic flexibility.

A standard installation takes 4–8 hours on-site, typically completed in one working day. Multi-shutter projects take 2–5 days. Fabrication lead time is 7–10 working days.

Solid GI shutters provide complete privacy and maximum security. Perforated GI shutters have small punched holes for airflow and partial visibility — ideal for retail shop fronts and petrol pump canopies.

Yes. All Motorolls GI rolling shutters are manufactured in compliance with BIS standards, including IS 5290 (rolling shutters) and IS 2629 (hot-dip galvanizing). Material test certificates available on request.