Stain remover for boat cover: Power Cleaner

Stain remover for boat cover: Power Cleaner

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Stain remover for boat cover: Power Cleaner

Ingrained stains in your boat cover? You can count on the Ultramar’s Power Cleaner! If nothing else works, this stain remover is the solution for heavy pollution and deeply ingrained stains. The Power Cleaner prevents the boat cover from being affected by dirt and mould. That is a lot cleaner and cheaper: if you keep the material clean, the cover will last for years longer than a dirty boat cover.

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    Some stubborn stains remain on your cover, even after it has been cleaned. We developed the Power Cleaner specially for these stains. This stain remover will get your boat cover looking spotless again.

    We recommend cleaning and impregnating your boat cover before storing the boat for winter. This prevents dirt and mould from developing and ensures that you can unfold a fresh boat cover in spring.

    Our special stain remover thoroughly cleans your boat cover. You do not need to dilute it.

    Stain remover instructions for use

    Ultramar’s Power Cleaner removes stubborn stains and ingrained dirt from your boat cover. Use this intensive cleaning agent as follows:

    1. Apply the Power Cleaner to a dry boat cover. Brush the cleaning agent into the canvas using a soft brush.
    2. Leave the Power Cleaner to soak in for approximately 1 hour.
    3. Don’t notice any change? Use extra Power Cleaner, brush it in and leave it to soak in again. Repeat these steps until the stains have disappeared. This may take several hours.
    4. Once you are satisfied with the result, rinse the fabric thoroughly with clean water.
    5. Allow the boat cover to dry completely before storing it


    After use, treat with a strong impregnating agent to waterproof and protect the fabric.

    Power Cleaner is a super strong cloth cleaner. You can use Power Cleaner on almost any fabric. Always test on a small inconspicuous piece of fabric first. On some tent fabrics, especially cotton and canvas, Power Cleaner can have a slight bleaching effect.

    Power Cleaner applications

    Youcan use this stain remover for a variety of applications, including:

    • Cotton and polyester tents
    • Boat covers
    • Sun blinds
    • Convertible tops
    • Backpacks
    • Plastic
    • Boat cushions


    How many litres do I need in order to clean and impregnate my boat cover?

    That depends how dirty your boat cover is. For a normal level of pollution on the boat cover we recommend using the following quantities:

    • 1 x 1 litre Sprayhood & Tent Shampoo
    • 1 x 1 litre Power Cleaner
    • 1 x 2,5 litres Sprayhood & Tent Protector

    A clean boat cover in three steps

    You can use this stain remover on its own. For optimum results, use the stain remover in combination with our regular boat cover cleaner and strong impregnation agent. The dirt on your boat cover is never just one type of dirt. It is often a combination of salt, sand, algae and mosses, mould and flies, for example.

    Sprayhood & Tent Shampoo can be used to remove most dirt. Remove any stubborn stains using the Power Cleaner. Then apply the Sprayhood & Tent Protector to protect the boat cover. Our three-step plan in a nutshell:

    1. First of all, use the boat cover cleaner to remove most of the dirt.
    2. Then use the stain remover to get rid of any stubborn stains.
    3. Finish by using impregnation agent to make the canvas waterproof and dirt repellent.

    Power Cleaner applications

    ● Boat covers
    ● Cotton and polyester tents
    ● Sun blinds
    ● Convertible tops
    ● Backpacks
    ● Plastic
    ● Boat cushions

    Frequently Asked Questions

    What is the difference between the Power Cleaner and the Sprayhood & Tent Shampoo?

    Both products have been developed for removing specific stains.
    ● The Sprayhood & Tent Shampoo removes surface dirt.
    ● The Power Cleaner removes stubborn stains.

    For the best result, follow our three-step plan for cleaning.

    How long should I leave the Power Cleaner to soak in?

    The Power Cleaner’s absorption time depends on how stubborn the stains are. It may take sometime.

    Apply the Power Cleaner to the surface in question and brush it in. You can leave it to soak in for a few hours, until all of the stains have disappeared. If the stains have not entirely disappeared after the first treatment, you can repeat the process.

    Can I use the Power Cleaner on a cotton tent canvas?

    Yes. The Power Cleaner is an extra powerful canvas cleaner and is suitable for cotton tent canvases.

    Test the Power Cleaner on a small section of canvas first. The Power Cleaner may have a slight bleaching effect on some tent fabric types.

    Can I just use Power Cleaner to clean the canvas?

    No. You should always clean the surface with the Sprayhood & Tent Shampoo first. Always use the Power Cleaner as step 2.

    That way, you will get less colour difference because you have also cleaned the cloth in step 1. Also, the Power Cleaner is more effective because everything has already been cleaned once with shampoo. This is because the shampoo tackles dirt that the Power Cleaner does not.

    Why do I need to apply the Power Cleaner multiple times?

    By applying the Power Cleaner several times, you loosen any stubborn stains from the tent canvas. The Power Cleaner even gets extremely dirty boat covers, tents and awnings clean.

    Customer Reviews

    Based on 3 reviews
    Ton Bakker

    Uitstekend. Ik bestel er nog een!!!


    Dit is echt superspul ........kap van de boot was groen van de alg ... Nu als nieuw

    Gunnard Schulz

    Ich bin einfach nur begeistert. Ich habe mir ein gebrauchtes Boot gekauft und die Persening wurde seit Jahren nicht gereinigt. Ich habe sie versucht mit normalen Mitteln zu reinigen was voll in die Hose ging. Einmal mit dem dem Power Cleaner gereinigt und sie sieht wieder aus wie neu. Ich hätte es nicht für möglich gehalten, aber es funktioniert wirklich wunderbar.