Middle East ยท Window Manufacturer
KLIL Industries โ Window Cleaning Guide
๐ฎ๐ฑ Israel ยท Last reviewed by Justin Orloff
Quick Facts
Founded
1950
HQ
Karmiel, Israel
Listed
Tel Aviv Stock Exchange
Materials
Aluminium
Specialty
Aluminium window, door and facade systems
Market
Israel residential and commercial; export
Brand at a Glance
- Israel's largest aluminium window and door systems manufacturer with 70+ years of production
- Alcoa-licensed and holder of hundreds of patents across window, door and shutter systems
- Systems specified for residential towers, public buildings and commercial facades nationwide
Product Range
- Aluminium casement, sliding and tilt-and-turn window systems
- Aluminium entrance and interior door systems
- Facade and curtain wall profiles for commercial construction
- Aluminium shutter and security screen systems
Why This System
KLIL combines local manufacturing with Alcoa-backed engineering - rare in the regional market. Their patent portfolio reflects decades of adaptation to Israel's specific climate demands: thermal performance for hot summers, dust-sealing for desert wind events, and corrosion resistance for coastal salt air. As a publicly traded company with long-standing institutional supply relationships, their systems are ubiquitous across Israeli construction.
KLIL aluminium frames accumulate mineral dust from desert wind events, salt deposits from coastal air, and hard water scale from irrigation runoff and window-mounted air conditioning units. High UV accelerates oxidation of frame surfaces if contaminants are left in contact. Standard household detergents leave residue in the fine extrusion channels. Professional cleaning protects the anodised or powder-coated surface and keeps drainage and ventilation gaps clear.
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 KLIL Industries 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 KLIL Industries 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 Klil Industries 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 Klil Industries 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 Klil Industries 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
- Never clean in direct Israeli summer sun - solution dries within seconds leaving mineral streaks that are harder to remove than the original grime.
- After sharav (hamsin) dust events, soak the glass surface for 30 seconds before squeegeeing - dry dust dragged across glass scratches the surface.
- On coastal sites from Tel Aviv to Haifa, check and clear weep holes every visit - salt crust accumulates faster than inland sites.
What NOT To Do
- Do not use acidic limescale removers on anodised or powder-coated aluminium - strips the protective surface layer.
- Do not pressure wash directly into frame joints or interlock channels - forces mineral-laden water past seals.
- Do not use steel wool or abrasive pads on aluminium frames - surface scratches trap salt and accelerate corrosion.
Bundle Kits and Tool Recommendations
Bundle Kit
Cleaning Frequency
Every 6-8 weeks for inland sites; monthly on coastal or high-pollution urban sites. Post-sharav deep clean recommended after major dust events.
Frequently Asked Questions
Field Notes
โHard water scale from drip irrigation systems and external air conditioning units is a common problem on Israeli residential buildings. A dilute white vinegar pre-soak on glass works for light scale - but keep it off aluminium frames. On high-rise work in Tel Aviv and Herzliya, wind-driven salt deposits concentrate on west and north-west facing elevations; these need more dwell time and a second wipe.โ
Justin Orloff
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