SPRENGER BOAT CARE
Nurture what you love
Our new line of care products combines proven quality with state-of-the-art care performance – for boats that shine and endure.
The high-quality formulas clean thoroughly, protect reliably, and make every detail sparkle.



Intended use
SPRENGER Anti Gilb is a self-acting gel for the effortless removal of yellowish algae discoloration, stubborn stains such as rust, fish blood or grass on gelcoat, plastics and paints – simply spray on, let it work and rinse off, without wiping or scrubbing. For long-lasting shine and protection, we recommend subsequent treatment with SPRENGER One Step Marine or with SPRENGER Marine Polish and SPRENGER Hard Wax.
INCI designation see: http://ec.europa.eu/growth/tools-databases/cosing/
Advantages
• Eliminates yellowing as well as stubborn stains and discoloration
• Self-acting – no scrubbing required
• Gel formula, perfect for vertical surfaces
• Long dwell time for optimal cleaning
• Gentle on plastics
Application
Shake well before use. Safety goggles and nitrile rubber gloves are recommended. Spray SPRENGER Anti-Yellowing directly onto the surface to be cleaned or onto a damp sponge and distribute evenly. Leave the gel on until the stain disappears (up to 60 minutes possible, observe outside temperature and humidity!), then rinse thoroughly with fresh water. For extremely stubborn stains, repeated application, longer exposure time, or careful scrubbing may be necessary.
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Intended Use
The SPRENGER Waterline Cleaner is a powerful, acid-based special cleaner for thoroughly cleaning the waterline and underwater hull. It reliably removes deposits such as algae, yellowing, limescale, mussels, barnacles, fouling, rust film, as well as oil and dirt residues – all without strenuous scrubbing.
For INCI designation, see: http://ec.europa.eu/growth/tools-databases/cosing/
Advantages
• Quick and easy to use
• Does not attack plastic or gelcoat
• Self-cleaning action – no aggressive scrubbing required
• Also removes flash rust and oil stains
Application
Shake well before use. Wear safety goggles and nitrile rubber gloves. Apply undiluted SPRENGER Waterline Cleaner to a damp sponge or brush and apply to the surface to be cleaned. Foam formation indicates active effect – reapply if foam formation decreases. Exposure time: approx. 15–30 minutes, then rinse thoroughly with water. For very heavy deposits, a second application or light scrubbing may be necessary.
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Intended use
SPRENGER Mussel & Algae Remover is a strong acidic cleaner for thorough cleaning of the waterline, hull, Z-drive, saildrive, and outboard motor. It effectively removes algae, mussel, and barnacle fouling, as well as rust stains – quickly, automatically, and without intensive scrubbing.
INCI name see: http://ec.europa.eu/growth/tools-databases/cosing/
Benefits
• Works immediately after application
• Self-cleaning – hardly any scrubbing required
• Safe to use on GRP, metal, wood and painted surfaces
• Reliably removes rust stains
• Also ideal for RIBs
Application
Shake well before use. Wear safety glasses and nitrile rubber gloves. Spray the mussel & algae cleaner directly onto the surface to be cleaned from a distance of approx. 20–30 cm. Foam formation indicates active effect – reapply if necessary to maintain cleaning effect. After 1–5 minutes of exposure time, rinse thoroughly with water. For particularly heavy deposits, a second treatment or light scrubbing with a brush or sponge may be necessary.
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Intended use
The deeply effective SPRENGER GRP Cleaner is a powerful special cleaner for the thorough removal of dirt, deposits, algae, discoloration, rain streaks, oil and tar stains, wax residues, and stubborn dirt caused by environmental influences or prolonged downtime. Suitable for GRP, plastics, gelcoat, artificial leather, rubber, and painted surfaces.
INCI designation see: http://ec.europa.eu/growth/tools-databases/cosing/
Benefits
• Reliably removes stubborn dirt
• No slippery film after cleaning
• Gentle on materials and versatile
Application
Shake well before use. Nitrile rubber gloves are recommended. Apply undiluted SPRENGER GRP Cleaner to a damp sponge, brush or cloth and thoroughly clean the soiled surface. Then rinse with clear water.
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Intended Use
SPRENGER Rain Streak Remover is an alkaline high-performance cleaner that quickly and effortlessly removes black rain streaks, stains, and other stubborn dirt from fiberglass, vinyl, plastic, stainless steel, rubber, and painted surfaces. Depending on the degree of soiling, the cleaner can be used neat or diluted with water.
INCI designation see: http://ec.europa.eu/growth/tools-databases/cosing/
Advantages
• Reliably removes rain streaks and heavy soiling
• No heavy scrubbing required
• Highly concentrated and versatile
Application
Shake well before use. Wear safety glasses and nitrile rubber gloves. Spray the Rain Streak Remover directly onto the soiled surface or apply to a damp sponge to avoid spray mist. Depending on the degree of contamination, let it work for approx. 30 seconds, then wipe off with a cloth, brush or sponge and rinse thoroughly with water. For heavy soiling, repeat the application and scrub lightly.
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Intended Use
SPRENGER Marine Polish polishes and seals your surfaces in one step. It removes fine scratches and contaminants, intensifies colors, and protects GRP, metal, and painted surfaces from UV damage and re-soiling for weeks. Polishing grains smooth out irregularities, while micro-polymers and carnauba wax create streak-free high gloss and maintain a like-new appearance.
Advantages
• Polish and sealant in one step
• Removes small to medium scratches
• Restores colors and provides intense deep gloss
• Micro-polymers and carnauba wax for intensive protection
• Easy to apply by hand or with a polishing machine
• Silicone-free
Application
Shake well before use. Marine Polish can be applied by hand or machine (rotary or eccentric). Apply some polish to a medium-hard polishing pad and work it into the surface with a polishing machine in even movements; do not allow it to dry. Wipe off polish residues with a soft microfiber cloth to a high gloss.
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Intended Use
SPRENGER Grinding & Polishing Paste is a high-performance abrasive polish for weathered, faded, and compromised surfaces. The polishing grains reduce in size during the polishing process, ensuring an intensive abrasive effect at the beginning and a fine surface quality at the end. SPRENGER Grinding & Polishing Paste removes scratches, deposits, and prepares the surface for subsequent sealing. SPRENGER Grinding & Polishing Paste can be used on paint, gelcoat, metal, and other surfaces.
Advantages
• Extra strong abrasive and polishing effect
• Removes scratches, deposits, unevenness, and heavy soiling
• Makes faded and chalked surfaces look new again
• Long working time, allows for precise work
• Low-dust formulation
• Versatile use on numerous surfaces
• Free of waxes and silicones
Application
Shake well before use. SPRENGER grinding and polishing paste can be applied by hand or machine (rotary or eccentric). Apply some paste to a hard polishing pad and spread with even movements using a polishing machine at a medium speed. Do not allow to dry. Wipe off polishing residue with a soft microfiber cloth to a high gloss.
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Intended Use
SPRENGER Hard Wax is an easy and quick to apply long-term sealant, suitable for almost all surfaces. Simply spray on – wipe off – done! It seals and protects surfaces for several months from UV rays and environmental influences, reduces dirt adhesion, and provides a streak-free deep gloss. Water simply beads off, and sealed surfaces stay clean longer and are easier to clean.
Advantages
• Quick and easy application
• Streak-free deep shine
• UV protection and extreme water beading effect for several months
• Reduces dirt adhesion and re-soiling
• Can also be used on damp surfaces
• Versatile
Application
Simply spray SPRENGER Hard Wax onto the washed and clean surface and wipe with a clean, dry microfiber cloth. Turn the cloth regularly.
To the product


Intended Use
With SPRENGER One Step Marine, complete paint restoration can be achieved in a single step. This product is suitable for gelcoat, painted surfaces, metal parts, and smoothly sealed wood. The innovative formula revitalizes faded paints, removes small to medium scratches and sanding marks up to 2500 grit, and creates an almost hologram-free surface. High-quality micro-polymers provide long-lasting sealing of the paint and impart a deep shine – no additional sealing is necessary.
Benefits
• Polish and sealant in one step
• Removes small to medium scratches
• Provides intensive color refreshment and brilliant deep gloss
• Long-lasting protection thanks to micropolymers
• Saves time with an efficient 1-step formula
• Easy, clean application
Application
Shake before use. SPRENGER One Step Marine can be applied by hand or with rotary or eccentric polishing machines. Apply SPRENGER One Step Marine to a medium-hard polishing pad and work in even movements at a medium speed. After a short drying time, polish off the residue with a soft microfiber cloth to a high gloss.
For the 1kg product


Intended Use
SPRENGER Metal Polish is ideal for thorough cleaning and care of stainless steel parts, railings, fittings, winches, and other metal surfaces on board. The polishing agents reliably remove dirt, oxidation, rust, deposits, and light scratches, and quickly restore even dull or faded metal surfaces to a brilliant shine.
Advantages
• Thorough cleaning of metal surfaces on board
• Removes oxidation, rust, deposits, and light scratches
• Quickly restores shine to stainless steel, railings, fittings, and winches
• Gentle polishing agents for convincing results
Application
Clean the material with a wet sponge and a little paste until the water beads off, then dry with a chamois leather or a soft cloth and polish lightly – without tedious polishing.
To the productHOW TO SURFACE CLEANING

SPRENGER GRP Cleaner
First, perform a basic cleaning.
✓ Damp sponge, brush or cloth

SPRENGER Anti Gilb
SPRENGER Water Pass Cleaner
SPRENGER Mussel & Algae Remover
SPRENGER Rain Streak Remover
Depending on the level of soiling, treat the affected areas with one of the SPRENGER special cleaners listed above. If necessary, repeat the application or carefully scrub.
✓ Damp sponge, brush or cloth

Rinse thoroughly.
Depending on the product, you may need to post-treat the surface with SPRENGER GRP Cleaner. Then rinse thoroughly with water.
✓ Water (clean fresh water)
SPRENGER GRP Cleaner
First, perform a basic cleaning.
✓ Damp sponge, brush or cloth
SPRENGER Anti Gilb
SPRENGER Water Pass Cleaner
SPRENGER Mussel & Algae Remover
SPRENGER Rain Streak Remover
Depending on the level of soiling, treat the affected areas with one of the SPRENGER special cleaners listed above. If necessary, repeat the application or carefully scrub.
✓ Damp sponge, brush or cloth
Rinse thoroughly.
Depending on the product, you may need to post-treat the surface with SPRENGER GRP Cleaner. Then rinse thoroughly with water.
✓ Water (clean fresh water)
TIPS
- Shake all products in the care range well before use
- Depending on the degree of soiling, apply the appropriate SPRENGER cleaner specifically to the surface to be cleaned
- Observe the recommended contact time – it varies depending on temperature and humidity
- For roughened or profiled surfaces, assist cleaning with a brush or a sponge with bristles
- Observe the respective application instructions for the individual products to achieve optimal results
- If scratches or deposits are still present afterwards, or if a surface finish is desired, treat the surface with SPRENGER polishes or sealants
HOW TO SURFACE FINISHING

SPRENGER Grinding and Polishing Paste
First, remove scratches, deposits, and unevenness.
✓ Polishing sponge of medium hardness

SPRENGER Marine Polish
Then polish to a high shine.
✓ Polishing sponge of soft to medium hardness

SPRENGER Hard Wax
Apply sealant for long-term protection, then wipe off.
✓Microfiber cloth clean and dry
SPRENGER Grinding and Polishing Paste
First, remove scratches, deposits, and unevenness.
✓ Polishing sponge of medium hardness
SPRENGER Marine Polish
Then polish to a high shine.
✓ Polishing sponge of soft to medium hardness
SPRENGER Hard Wax
Apply sealant for long-term protection, then wipe off.
✓Microfiber cloth clean and dry
OR
In one step

SPRENGER One Step Marine
The all-in-one formula allows small to medium scratches and faded paints to be polished out in one step, including sealing.
✓ Polishing sponge medium hardness
SPRENGER One Step Marine
The all-in-one formula allows small to medium scratches and faded paints to be polished out in one step, including sealing.
✓ Polishing sponge medium hardness

SPRENGER Special Metal Polish
Apply the polish to the surface with the enclosed sponge and polish it.
✓ Enclosed sponge
SPRENGER Special Metal Polish
Apply the polish to the surface with the enclosed sponge and polish it.
✓ Enclosed sponge
TIPS
- Rotary polishers deliver optimal results at approx. 1,200–1,800 rpm, depending on the user and the polishing pad used
- Eccentric polishers generally work most effectively at approx. 2,500–4,000 OPM
- Higher speeds accelerate the work process, but lead to greater material removal
- Soft polishing pads produce a particularly even and fine gloss finish
- Harder polishing pads allow for greater material removal on more severe signs of wear
- The products can also be applied manually if required
- Excessive heat generation can cause the polish to stick or damage the surface










