Asia-Pacific ยท Window Manufacturer
Eternia (Hindalco) โ Window Cleaning Guide
๐ฎ๐ณ India ยท Last reviewed by Justin Orloff
Quick Facts
HQ
Mumbai, India
Parent
Hindalco Industries / Aditya Birla Group
Materials
Aluminium (proprietary Duranium alloy)
Specialty
Premium aluminium windows with proprietary alloy
Market
India premium residential and commercial
Brand at a Glance
- Part of Aditya Birla Group - one of India's largest industrial conglomerates
- Duranium alloy is a Hindalco-developed aluminium compound with enhanced corrosion and UV resistance
- Positioned as India's premium domestic alternative to imported European aluminium systems
Product Range
- Aluminium casement windows (single and double leaf, thermally broken systems for premium segment)
- Aluminium sliding windows (two and three track, heavy-duty commercial grade)
- Aluminium bi-fold and lift-and-slide doors
- Aluminium facade and curtain wall systems for commercial projects
Why This System
Duranium alloy provides better corrosion resistance than standard 6063 extrusion alloy. For India's coastal and high-humidity markets, this matters. Hindalco produces the raw aluminium, which gives Eternia supply chain control unusual in the Indian window market.
Aluminium windows in India face two primary threats: monsoon moisture and salt air on coastal installations. Eternia's Duranium alloy is more resistant than standard aluminium, but it is not immune. The polyester powder coating on frames is the primary protection layer - aggressive cleaning removes the coating and exposes the alloy. All cleaning must be coating-safe.
Step 1 of 2: Manufacturer Recommendations
Official Care Guidance
Step 2 of 2: The Orloffs Protocol
The Orloffs Protocol
Since 1999 I've cleaned hundreds, if not thousands, of different window brands and systems. The physics of clean glass don't change from one brand to the next. Follow the steps below and you'll clean your Eternia (Hindalco) windows to a professional standard โ guaranteed.
Pro Tools
My daily tool list. This is what I carry to every job.
Follow these steps in order. Each one builds on the last. This is the same sequence I use on every Eternia (Hindalco) installation.
- 1
Preparation -- before any water touches the glass
Fill the bucket with at least 10 litres of water. Add soap for cleaning power -- enough to cut through environmental deposits, not so much you are fighting foam.
Before touching the glass, brush down the surface to remove loose dust, spiderwebs, and debris. Any grit left on the glass during the wash phase risks scratching during agitation.
Check the uPVC frame condition before you start. Confirm which cleaning product is safe for that surface before opening any bottle.
Cover anything below the windows that cannot be moved.
- 2
Agitation -- apply and work the solution
Dip the microfiber T-bar completely into the soap water, both sides. Remove excess water with your hand so it does not drip. Apply the solution across the entire glass surface with overlapping passes.
The goal is to fully dissolve and release every deposit from the glass surface. Anything not released during agitation gets transported across the glass by the squeegee as a smear.
For stubborn spots -- insect marks, salt residue, environmental deposits -- re-apply soap water and allow it to soak for a full minute before agitating again. Use more soap water, not more pressure.
For panels above arm reach: attach the T-bar to an extension pole. Work in sections -- top first, then middle, then bottom -- keeping each section wet until you squeegee it.
Rinse the T-bar cover regularly during the job. A dirty applicator causes microscopic scratches that accumulate over time.
- 3
Detail the frame edge before squeegeeing
Use your 100% cotton towelling rag, finger pressed into the fabric, to work into every junction and remove pooled soap water before the squeegee pass.
This prevents drips running down onto already-cleaned areas during squeegeeing and keeps soap water out of drainage channels.
On Eternia uPVC frames, pay particular attention to the bottom edge where glass meets the frame sill -- water pooled here runs into drainage openings and leaves residue over time.
- 4
The squeegee
Tilt the squeegee at a slight angle so soap water spills from one side of the channel only -- not both. If the rubber is jumping or squeaking, either the rubber is not lubricated enough or the glass surface has warmed.
Cutting in: start with the rubber blade making first contact on a dry edge of the glass.
Side to side: horizontal passes across the panel. Works well on wide sections. Top to bottom: vertical passes down the panel. Works well on tall narrow sections.
The J tune: one smooth unbroken motion top to bottom, wrist rotating at each end to reverse without lifting the rubber. The most efficient method on larger panels -- but it requires training before applying it to premium glass.
Wipe the rubber dry after every pass. Overlap each stroke by 2-3 cm.
- 5
Final edge detailing
After squeegeeing, there is always a residual line of water along the bottom edge and at the panel sides. Take a dry cotton rag, fold to a clean corner, and detail these edges in one smooth pass.
On Eternia frames, the bottom edge where glass meets the sill requires the most careful attention. Water left here runs into drainage and leaves residue that affects the next clean.
Rotate the rag to a clean section after every pass. If the rag picks up grit at any point, replace it immediately.
- 6
Frame wipe and hardware check
On Eternia uPVC frames: solvent-free pH-neutral cleaner only -- solvents cause permanent surface damage. Avoid abrasive pads on the profile.
Check that all drainage openings are clear and unobstructed. Water must be able to flow freely -- a blocked channel leads to accumulation that affects seal performance over time.
Operate every opening window through its full range. Stiff handles or resistance at locking points indicate hardware that needs lubrication. Flag it to the owner rather than forcing it.
Pro Tips
- Eternia powder coating is high quality - but never use abrasive pads even on stubborn marks. Dwell with detergent instead.
- Coastal Maharashtra and Gujarat: rinse aluminium weep holes and frame-to-glass gasket zones on every visit.
- Duranium alloy is more corrosion resistant than standard aluminium, but the threat zone is at gasket junctions and weep holes - these need to stay clear.
What NOT To Do
- Do not use acidic descalers or alkaline degreasers on Eternia frames - damages powder coating.
- Do not scrub across the grain of extrusion profiles.
- Do not ignore weep hole blockage - Eternia sliding systems can accumulate monsoon debris in the bottom track.
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Every 6-8 weeks inland; monthly on coastal or high-humidity sites. Post-monsoon inspection of gaskets recommended.
Frequently Asked Questions
Field Notes
โEternia is typically installed in premium residential developments and commercial buildings where the client has spent significantly. Presentation matters. The powder coat finish is excellent but clients notice any frame smearing - use clean microfibre cloths and change them frequently on large projects.โ
Justin Orloff
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