Stain remover for your convertible roof: Power Cleaner

Stain remover for your convertible roof: Power Cleaner

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Stain remover for your convertible roof: Power Cleaner

Does your soft-top convertible roof have stubborn stains? No worries: Ultramar's Power Cleaner removes even the most ingrained dirt. If you don’t know what else to try, you can always rely on this stain remover. The Power Cleaner has been specially developed for deeply ingrained stains and heavy pollution. It prevents permanent damage to your convertible roof caused by stubborn dirt and green deposits. Over time, a dirty roof can leak onto your beautiful interior. Keeping your convertible roof clean ensures it will last much longer.

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    Some stains are almost impossible to remove, which is why we developed the Power Cleaner. Use it on ingrained stains and your roof will be spotless again in no time.

    We recommend cleaning and impregnating your roof regularly in order to keep it looking nice for as long as possible. This will prevent leaks, green deposits and unsightly streaks and stains.

    Our special stain remover thoroughly cleans your convertible roof. You do not need to dilute it.

    Stain remover instructions for use

    Ultramar’s Power Cleaner removes stubborn stains and ingrained dirt from your soft-top convertible roof. How to use this intensive cleaning product:

    1. Apply the Power Cleaner to the dry roof. 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. Leave the roof to dry completely.


    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 convertible roof?
    That depends how dirty your roof is. For a normal level of pollution on a convertible roof 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 convertible roof in three steps

    Of course, you can use the stain remover on its own. For optimum results, use the stain remover in combination with our cleaner and impregnation agent. Did you know that the dirt on your convertible roof is never made up of just one type of dirt? It is usually a combination of sand, algae and mosses, salt and insect and bird droppings, 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 or Canvas Protector to protect the canvas. Our three-step plan in a nutshell:

    1. First of all, use the 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 roof waterproof and dirt repellent.

    Power Cleaner applications

    ● Convertible tops
    ● Cotton and polyester tents
    ● Boat covers
    ● Sun blinds
    ● Backpacks
    ● Parasols
    ● 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 1 review
    Superkrachtig product!

    Een groot aantal vlekken op mijn cabrio kap kreeg ik niet verwijderd, noch met Ultramar's gewone reiniger, noch met het equivalente product van Meguiars. Daarop heb ik advies gevraagd, vergezeld van een fotootje, en snel gekregen van Pieter van Ultramar. Het waren ingedroogde mosplekken, dus een vergevorderd stadium van groene vervuiling.Het advies was om gedurende een dag elk uur de Power Cleaner op de vlekken te sprayen en in te borstelen. Tussendoor niet spoelen. Aan het eind van de dag heel goed spoelen. Dat heeft inderdaad wonderen verricht! De vlekken zijn volledig verdwenen en mijn cabriodak is weer mooi egaal van kleur.
    Let wel op, het spul is slecht voor je huid en je lak!
    Daarna afgemaakt door het hele dak nog met gewone reiniger te doen en nogmaals grondig te spoelen. Tot slot geïmpregneerd.
    Dank voor het goede product en advies!