Boot behandelen

Collection: Treat boat

Our products for your boat cover: cleaning and impregnation

Did you know your boat cover could look good as new again? Over time, the material becomes dirty due to a build-up of salt, sand, algae and moss, mould and green deposits. Your spray hood looks less nice and you face an increased chance of leaks.

It is therefore important to maintain your spray hood properly, for example at the end of each sailing season. This prevents dirt from causing wear to the material. Clean and impregnate the hood regularly to ensure it stays waterproof and dirt repellent and continue enjoying your beautiful boat cover for years to come.

You can avoid many common problems by maintaining and preventively treating your spray hood. Leaks at the seams, rain streaks, weather stains and green deposits will be a thing of the past. Your spray hood will retain its original fresh colour and the rain will roll off the material.


Done in 3 steps

Cloth cleaner for your boat cover: Sprayhood & Tent Shampoo

Step 1

Clean your boat cover using Ultramar’s Sprayhood & Tent Shampoo

The Sprayhood & Tent Shampoo removes most normal dirt from your spray hood.

● First of all, clean the spray hood with lukewarm water and a soft brush. This will already remove some of the dirt.
● Apply Ultramar Sprayhood & Tent Shampoo to the wet boat cover and brush off the dirt. You could use a plant sprayer and a firm, soft brush to do this.
● Leave the shampoo to soak in for approximately 20 minutes.
● Remove the shampoo and dirt using the brush and plenty of water.
● Rinse well.
● Allow the spray hood to dry completely before impregnating or rolling it up again.

Stain remover for boat cover: Power Cleaner

Step 2

For tough dirt, use Ultramar’s Power Cleaner

The Power Cleaner removes ingrained and stubborn stains.

● Apply Ultramar's Power Cleaner to the dry material and rub in using a firm, soft brush. Use a spray, plant sprayer or soft brush to apply.
● Leave to soak in for approximately 1 hour. Don't notice any change? Apply additional Power Cleaner and brush in again. Leave to soak in again. Repeat this as many times as required until the stains have disappeared.
● Remove the cleaning agent and dirt using the brush and plenty of water.
● Rinse well.
● Allow the spray hood to dry completely before impregnating or rolling it up again.

Impregnation agent for your boat cover: Sprayhood & Tent Protector

Step 3

impregnate boat cover using Sprayhood & Tent Protector

The Sprayhood & Tent Protector impregnates the boat cover, keeping it waterproof and repelling dirt.

● Make sure that the cover is clean and dry.
● Apply Ultramar's Sprayhood & Tent Protector generously and evenly. Make sure that the canvas is completely saturated. You could use a spray or plant sprayer, for example.
● Also treat the inside of the material in order to prevent weather stains and mould.
● Remove the impregnation agent from the windows straight away. You could use a damp cloth to do this.
● Leave the spray hood to dry.
● Repeat the treatment if required.

Frequently Asked Questions

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 of a sloop that is a few years old, we recommend using the following quantities:

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

How do I clean my boat cushions?

Boat cushions are usually made from the same material as your boat cover. You can therefore clean them using the same method

Take a look at the step-by-step plan.

My boat cover is still not clean after I have cleaned it. What else can I do?

Always follow the step-by-step plan when cleaning your boat cover. Each step and each cleaning agent targets a different type of pollution.

Take the following steps in order to clean your boat cover:

• Step 1: First of all, clean the boat cover with water and followed by the Sprayhood & Tent Shampoo immediately after.
• Step 2: Then clean the boat cover using the Power Cleaner stain remover.
• Step 3: Impregnate the boat cover using the Sprayhood & Tent Protector.

Do I need to impregnate the inside of my boat cover?

Yes. Mould and weather stains often form on the inside of the boat cover, and so we also recommend impregnating the inside. This reduces the chance of mould and damage to the coating.

How can I make the seams of my boat cover waterproof (again)?

All you need to do is fill the stitch hole until it is closed. Take the following steps in order to do that:

• Spray a generous amount of impregnation agent onto the seam using a plant sprayer.
• Rub the impregnation agent into the stitches using a brush, paying extra attention to any holes in the seam.
• Allow the canvas to dry.
• Using some water, test whether the seam is watertight again.
• If the seam is still leaking, repeat the treatment until it is watertight.