When diluting in water what is the ratio of product to use per litre or bucket?

The dilution ratio given on the FR100 details on Amazon, on the Unger web site and on the bottle I have is 1:100. This equates to1 part of Unger Soap to 100 parts of water. Therefore you add 10 ml of Unger soap to 1 litre of water, or if you have a 5 litre bucket then you would add 50ml of Unger soap to make up the solution. Hope this helps.

Does this contain alcohol my windows have film on them so needs alcohol free products

No this does not contain any alcohol. It should be safe to use on the film.

What's the secret to a streak free finish please?

I always rinse the glass with rainwater before finishing off with a professional quality rubber squeegee. I use a pump-garden sprayer and spray the rainwater using that.

Can this be used in a Karcher vac window cleaner ?

An interesting question. As the Karcher window cleaner is in a spray bottle, it would be sensible to think that you can use any sprayable window cleaner fluid. All you should need to do is to dilute the Unger window cleaning fluid as required and fill the Karcher spray bottle. Worth trying it out to see if it works. Hope this helps.

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✨ Crystal-clear windows, zero compromises 🪟

SAFE SECURE - Child-proof cap prevents leaks and accidents, making it a smart choice for busy households and pros alike.
GLIDE LIKE A PRO - Formulated for smooth squeegee movement, cutting your cleaning time with effortless slip and no streaks.
GENTLE ON HANDS TOUGH ON GRIME - pH-neutral soap that’s kind to your skin while delivering superior dirt and grease removal.
PRECISION MIXING PERFECT RESULTS - Built-in dosage scale ensures the ideal 1:100 ratio every time—no guesswork, just flawless windows.
MAXIMIZE YOUR CLEAN MINIMIZE YOUR SPEND - One liter yields 100 liters of powerful cleaning solution—efficiency that professionals swear by.

UngerFR100 is a professional-grade, smear-free window cleaning liquid soap from Germany, designed for maximum efficiency with a 1:100 mixing ratio that yields up to 100 liters of cleaning fluid per 1-liter bottle. Its pH-neutral formula ensures skin safety while delivering streak-free, easy-glide cleaning results, complemented by a child-proof cap for added safety.

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