
Asia-Pacific ยท Window Manufacturer
PT Alexindo โ Window Cleaning Guide
๐ฎ๐ฉ Indonesia ยท Last reviewed by Justin Orloff
Quick Facts
founded
Indonesia
hq
Indonesia
primaryMaterials
Aluminium extrusions - 6000-series alloy
glazingPartner
Extrusion supplier - downstream fabricators produce finished windows
marketTier
Mid-Range (industry supplier)
Brand at a Glance
- Country: Indonesia
- Role: Primary aluminium extruder - not a finished window brand
- Output: Approximately 15,000 tonnes of extrusion annually
- Market: Indonesian aluminium fabrication industry
- Climate: Tropical Indonesia - high humidity, monsoon, equatorial UV
Product Range
- Standard architectural profiles
- Custom extrusions
Why This System
Alexindo is Indonesia's largest extruder - understanding their role clarifies why most Indonesian aluminium windows share similar cleaning characteristics. The base material is consistent; only the fabricator's powder coat specification and hardware choice vary. Indonesian equatorial climate is among the most intense tropical environments in the world - 12 months of high humidity, UV, and rainfall with no dry season respite. Window maintenance intervals here are more demanding than seasonal tropical markets.
Step 1 of 2: Manufacturer Recommendations
Official Care Guidance
Source: ORLOFFS PROFESSIONAL GUIDANCE - EQUATORIAL ALUMINIUM PROTOCOL
Glass
- Pre-rinse with clean water to remove organic matter and surface deposits before applying cleaning solution.
- pH-neutral glass cleaning solution. Squeegee top to bottom. Overlap strokes.
- Check glass unit seals - equatorial UV and humidity accelerate seal degradation.
Aluminium Frames
- Inspect frame surfaces for organic growth in shaded areas before cleaning. On algae or mould growth, use a dilute pH-neutral anti-fungal solution before standard cleaning.
- pH-neutral solution wipe on all frame surfaces. Rinse thoroughly in shade or after the sun has moved off the surface.
- Inspect for powder coat chalking on every visit. Document and report.
Tracks and Drainage
- Clear track channels at every visit. Indonesian organic debris - leaf material, insects, organic dust - blocks tracks faster than in seasonal markets.
- Clear weep holes. Year-round rainfall means drainage must be functional at all times.
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 PT Alexindo 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 PT Alexindo 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 aluminium 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 Alexindo aluminium 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 Alexindo 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 Alexindo powder-coated aluminium frames: use pH-neutral cleaner only, never abrasive pads or steel wool. Dry immediately after wiping.
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
- In Indonesian equatorial conditions, organic growth returns within 4 weeks in shaded areas - a mild anti-fungal additive in the frame cleaning solution on every visit slows regrowth
What NOT To Do
- Do not scrub organic growth on aluminium frames with abrasive pads - use anti-fungal solution and soft cloth
- Do not skip weep hole clearing in equatorial conditions - drainage failure is year-round risk
- Do not use alkaline or solvent cleaners on powder-coated frames
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Equatorial Indonesian residential: Every 4 to 6 weeks. Shaded or vegetation-adjacent properties: Every 4 weeks
Frequently Asked Questions
Field Notes
โIndonesian aluminium windows - predominantly Alexindo-profile fabrication - are the standard surface type across the Indonesian residential and commercial market. Efficient, consistent technique on this product category is the foundation of any Indonesian window cleaning business.โ
Justin Orloff
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