Koch-Chemie Hydro Foam Sealant S0.03 - 1L
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Koch-Chemie Hydro Foam Sealant S0.03 is a high-gloss, wet-applied sealant that combines paint protection and shine enhancement in a single, easy step. Designed to be used immediately after washing while the vehicle is still wet, it creates a deep, velvety gloss on paintwork, glass, and plastic trim. With powerful hydrophobic properties, this sealant significantly improves water beading and runoff, helping keep your vehicle cleaner between washes.
What’s in the bottle:
- Wet-application foam sealant, applied through a foam cannon or pump sprayer
- 1L concentrate, 1:50 to 1:150 dilution (50+ uses per bottle)
- Hydrophobic water beading and runoff
- UV inhibitors and surface conditioners that protect plastic and convertible tops
- Cherry-scented formula
- No streaks or spotting, rinses clean with no residue
You apply it through a foam cannon (or pump sprayer) onto the already-wet vehicle right after the wash step, instead of toweling on a paste wax or installing a bonded coating.
Who this is for
- Mobile detailers running “wash and protect” packages who need a foam-cannon-ready protection step that goes on while the vehicle is still wet, with no toweling stage
- Detail shops maintaining ceramic-coated cars between full coating reapplications, where Hydro Foam Sealant restores hydrophobic beading without disturbing the coating underneath
- Tunnel and conveyor operators needing a sealant that runs through foam systems on the wet side of the wash
- Enthusiasts who want stronger hydrophobic beading and gloss than a regular foam wash leaves behind, in one extra step
Hydro Foam Sealant vs Protector Wax
Koch-Chemie offers two foam-gun-compatible exterior protection products. Here’s how to choose between them:
- Hydro Foam Sealant: spray it on the still-wet vehicle right after washing, let it dwell 30 to 60 seconds, and rinse: hydrophobic beading and a high-gloss layer in one wet step, every wash. Pick it when you want the fastest wet-on-wet protection step, you’re maintaining a ceramic-coated car between reapplications, or you’re running tunnel/conveyor volume.
- Protector Wax: a bonded protection wax that delivers great gloss and that traditional “wet” look and soft feel on paint, glass, rubber, and trim, with surface conditioning for plastic and convertible fabric tops; apply by foam gun, tunnel, or hand. Pick it when you want a wax-tier finish, want to fill in minor swirls, or you’re selling a wash-and-wax package where customers expect a waxed look.
Many shops carry both and pick by package tier. Other Koch-Chemie chemicals you’ll likely pair with these for a full system include Pol Star (neutral-pH interior cleaner with protection for leather, Alcantara, and textile) and Green Star (alkaline all-purpose cleaner for engine bays, wheels, tires, and heavy exterior degreasing). See the full Koch-Chemie collection for the complete system.
Specifications
Product Type Wet-applied foam sealant Available Size 1L concentrate Dilution Range 1:50 to 1:150 Uses Per Bottle 50+ at recommended dilution Application Method Foam cannon or pump sprayer Surfaces Paint, glass, plastic, vinyl, convertible tops Application Stage Wet, immediately after washing Dwell Time 30 to 60 seconds (do not let it dry) Scent Cherry Notable Properties SiO2-based, Hydrophobic beading, UV inhibitors, surface conditioners Dosage & Dilution Guide
Foam Cannon (standard) 1:50 to 1:100 Heavier concentration for better beading restoration Foam Cannon (economy) 1:100 to 1:150 Lighter concentration for weekly maintenance washes Pump Sprayer 1:50 to 1:150 Same range; adjust to coverage needs Per Bottle (1L) 50+ applications At recommended dilution -
- Wet-on-wet application. Spray it on the still-wet car right after washing: no toweling stage, no cure window, no separate protection step.
- High-gloss finish that intensifies color and visual depth.
- Hydrophobic protection. Tighter beading sheds water, speeds drying, and gives road film less to grab between washes.
- UV and plastic safe. Protects trim, plastic, and convertible roofs while the gloss goes down on paint.
- Rinses clean. No streaks or spotting to buff out afterward.
- Cherry-scented formula that leaves the car smelling fresh.
- Economical at 1:50 to 1:150, up to 50+ uses per bottle.
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- Dilute Hydro Foam Sealant between 1:50 and 1:150 in a foam cannon or pump sprayer.
- Apply directly to the wet vehicle surface after washing.
- Dwell 30 to 60 seconds. Do not let it dry.
- Rinse thoroughly with clean water.
- Dry the vehicle for a brilliant, streak-free shine.
Technician Tips
- Apply in shade or on cool surfaces to prevent premature drying.
- Excellent follow-up product to maintain ceramic-coated vehicles.
- Works on paint, glass, plastic, and vinyl: true all-around exterior protection.
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A sealant like Hydro Foam is a synthetic protection layer built for hydrophobic water beading and gloss, applied wet in the wash. A wax leaves a warmer, waxed depth and typically goes on as a paste or a spray after drying. Hydro Foam's edge is speed: spray on the wet car, dwell, rinse, done.
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They serve different needs. Hydro Foam Sealant is a ceramic compatible maintenance-tier layer you reapply weekly for fresh beading and gloss, no cure time. A full ceramic coating is a bonded, multi-year protection with more durability but higher cost and prep. Many owners run a coating for longevity and Hydro Foam Sealant on top to keep beading sharp.
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A pump sprayer works. The application method is foam cannon or pump sprayer at the same 1:50 to 1:150 dilution. The foam cannon lays down a thicker, more even wet-on-wet layer that's faster on full vehicles. A pump sprayer suits mobile detailers without a cannon and spot reapplication on glass or convertible tops.
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Yes, Koch-Chemie calls it an excellent follow-up to maintain ceramic-coated vehicles. As a coating's hydrophobic properties can fade over time, a weekly Hydro Foam pass through the foam cannon enhances or restores beading and adds a gloss layer, without disturbing the coating. Top up on every wash or every other wash depending on the car's use.
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Weekly is the manufacturer-recommended cadence. It folds into the wash routine: wash, apply at 1:50 to 1:150 through a foam cannon or pump sprayer, dwell 30 to 60 seconds, rinse, dry. Because the dilution stretches a 1L bottle to 50+ applications, weekly use runs roughly a year per bottle.
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