Soft99 Glaco De Cleaner Glass Cleaner 400ml

Streak-free cleaning with beading effect — the Soft99 Glaco De Cleaner as a glass cleaner with a sealing bonus

What makes the Glaco De Cleaner special? The Soft99 Glaco De Cleaner is a glass cleaner that simultaneously builds up a water-repellent protective layer during cleaning. The alcohol-resin formula removes dirt, insect residues, and grease films without streaks and leaves a light hydrophobic effect above 60 km/h — usable indoors and outdoors.

The Soft99 Glaco De Cleaner is the all-rounder in the Glaco series for regular glass cleaning. Unlike conventional glass cleaners, which only clean and then evaporate, the De Cleaner leaves a thin water-repellent layer on the glass surface. The formula is based on a combination of cleaning alcohols and water-repellent resin — the alcohols dissolve grease, fingerprints, insect residues, and road film, while the resin remains as an invisible protective layer after wiping. With 400 ml in the spray bottle, the De Cleaner offers enough content for weeks of regular glass cleaning. The big advantage in the Glaco system: The De Cleaner is designed as an intermediate cleaner that does not attack existing Glaco seals — on the contrary, it gently cleans the sealed surface and complements the beading effect. The De Cleaner is also ideal for cleaning the inside of the windshield and side windows — simply spray onto a microfiber cloth and wipe.

• Cleaning and water repellency in one step. The De Cleaner cleans the glass surface and simultaneously builds up a water-repellent protective layer. In practice, this means: After every cleaning, you benefit from a slight beading effect — not as strong as with a dedicated sealant, but clearly noticeable and renewed with each application.
• Compatible with all Glaco sealants. Many glass cleaners contain surfactants and solvents that attack hydrophobic coatings. The De Cleaner is specially formulated for use on sealed windows and cleans without damaging the existing Glaco layer — whether it's Ultra Glaco, Glaco DX, or Roll On Large.
• Usable indoors and outdoors — versatile glass cleaner. The De Cleaner works on the outside of the windshield as well as on the inside. For the interior window, spray the product onto a microfiber cloth instead of directly onto the window — this avoids spray mist on the dashboard and trim.

Practical tip from Detailing1: Use Glaco De Cleaner as a regular interim cleaner for your sealed windows. A quick cleaning with De Cleaner every one to two weeks keeps the window clean without affecting the sealant — and the additional beading effect slightly refreshes the existing coating. Ideal in combination with Ultra Glaco as a base sealant.

How the alcohol-resin formula of Glaco De Cleaner works

The Glaco De Cleaner uses a two-phase formula of cleaning alcohols and water-repellent resin. The alcohol component is responsible for the actual cleaning: It dissolves greasy dirt such as fingerprints, road film, and insect residues and evaporates without leaving any residue. The resin component remains as a thin film on the glass surface after wiping and forms the water-repellent protective layer. This film is significantly thinner than with a dedicated sealant like the Glaco Roll On Large or the Glaco DX, but offers a measurable hydrophobic effect above approximately 60 km/h. The decisive advantage of this formula: The cleaning alcohols are selected so that they do not dissolve existing Glaco sealants. Conventional glass cleaners — especially those with aggressive surfactants or ammonia — can abrade hydrophobic coatings layer by layer. The De Cleaner exclusively cleans the contaminants on the sealant without attacking the sealant itself. This makes it the only glass cleaner in the Glaco system that is explicitly recommended for the care of sealed windows.

Applying Glaco De Cleaner correctly — exterior and interior windows

The application of Glaco De Cleaner differs depending on the area of use. For the outside of the windshield: Shake the bottle briefly, spray the De Cleaner evenly onto the window from a distance of 15 to 20 centimeters, and spread it with a clean microfiber cloth in straight lines. Then wipe with the dry side of the cloth or a second cloth to avoid streaks. For the inside of the windshield: Spray the De Cleaner onto a microfiber cloth — not directly onto the window, to avoid spray mist on the dashboard and vents. Then wipe the inside of the window in straight, overlapping lines. The inside of the window collects a lot of grease and nicotine film, which significantly impairs visibility in backlight — the De Cleaner reliably removes this film. The same technique works for the side windows. A common mistake: Using too much product. Two to three sprays per half of the window are sufficient — too much product leaves a thicker film that can form streaks when drying.

Beading effect and protective action — what the De Cleaner as a glass cleaner achieves

The beading effect of Glaco De Cleaner is a pleasant additional benefit, but not a substitute for a full-fledged window sealant. The water-repellent resin layer works at approximately 60 km/h — when driving on the highway, raindrops run off visibly faster than on an untreated window. In city traffic below 60 km/h, the effect is less pronounced. The durability of the beading effect is a few days to a week — however, it is renewed with each cleaning. In comparison: Glaco Q as a 2-in-1 product offers a significantly stronger beading effect from 45 km/h with six to eight weeks of durability. The De Cleaner is primarily a glass cleaner with a bonus sealant, not vice versa. Its main benefit lies in streak-free cleaning while simultaneously protecting existing sealants. On unsealed windows, it at least offers a light basic protection and can serve as a low-threshold entry into the world of glass sealing.

Glaco De Cleaner vs. conventional glass cleaners — the difference

The Glaco De Cleaner differs from conventional glass cleaners from the supermarket in three key respects. First: Conventional glass cleaners only clean — the De Cleaner cleans and seals. Second: Most standard glass cleaners contain surfactants and sometimes ammonia, which attack hydrophobic coatings. Anyone who has treated their car with a Glaco sealant and then uses a conventional glass cleaner will gradually wear down the sealant with each cleaning. The De Cleaner is specially formulated to be gentle on the sealant. Third: Streak-free. The alcohol base of the De Cleaner evaporates without residue, while many standard cleaners leave mineral residues or surfactant films that become visible as streaks in backlight. For drivers who do not use a Glaco sealant, the De Cleaner is still an improvement over standard glass cleaners — the slight water repellency and better streak-free finish are noticeable even without a sealant.

Who is the Glaco De Cleaner ideal for — purchase recommendation

The Soft99 Glaco De Cleaner belongs in every car care kit as a standard glass cleaner. For Glaco users, it is practically indispensable: It is the only glass cleaner that is guaranteed not to attack existing Glaco sealants and even slightly refreshes them. If you have Ultra Glaco, Glaco DX or Glaco Roll On Large on your window, you should only use the De Cleaner or clear water for intermediate cleaning — anything else will shorten the lifespan of the sealant. The De Cleaner is also excellent for interior windows: It removes the typical grease film that forms from dashboard outgassing and fingerprints, leaving a crystal-clear, streak-free surface. In the complete Glaco system, we recommend: Glass Compound Roll On for deep cleaning during initial application, a sealant of your choice as a protective layer, and the De Cleaner as a regular maintenance cleaner between sealant renewals.