Grunt Boat Cleaner - 1 Litre

Grunt Boat Cleaner - 1 Litre


Regular price €31.95
Tax included. Shipping calculated at checkout.

Grunt boat cleaner is specifically designed to make cleaning those nasty stains from your boat an easy task, so easy in fact you wont believe it!

Grunt boat cleaner penetrates into the gelcoat and using a chemical reaction gently neutralises and absorbs the staining without affecting the gelcoat in any way. The stain can then be simply washed off with a sponge and water.

To use Grunt Boat Cleaner simply apply to the stained area with a paint brush –  the product now works in just 3-4 minutes–  Grunt really does all the hard work, magically neutralising and absorbing the stain ready to be rinsed off… it really is that simple!!!

It is non-hazardous for transport and is even more environmentally responsible and safer than most products on the market.

Whilst primarily designed for use on fibreglass boats Grunt boat cleaner is also works brilliantly on most two part marine paint systems and yacht enamels typically used on steel or timber boats.

Application Manual

To achieve the best results please follow the procedure outlined.
Shake well before use

1) Pour some Grunt boat cleaner into a clean bucket or other suitable container; make sure that the bucket is dry inside as any water present will dilute the cleaner making it less effective.
Grunt boat cleaner is formulated in a gel consistency to enable it to be used on vertical or overhead surfaces.

2) Apply Grunt boat cleaner to the stained areas using a small paint brush. For larger areas or for heavily stained hulls it may be necessary to coat the entire hull, this can be easily achieved using a larger brush.
Treating just a small area may leave you with a “clean spot” showing up the dirt and staining on the rest of your boat necessitating an overall treatment. To avoid leaving “clean spots”, the entire area should be treated with Grunt boat cleaner.

3) Always ensure the area to be cleaned is free from all old wax or polish as this may affect the working of Grunt as the wax will act as a barrier not allowing Grunt to reach the staining in the surface below and stopping it working properly. A wash with any standard boat wash will remove any wax or polish remaining on the surface.

4) Leave Grunt boat cleaner on the surface for approx 3-4 minutes, longer in colder weather or heavier staining, and then rinse off with a sponge and clean water.
Remember Grunt works purely by a chemical reaction therefore it is vitally important to allow Grunt “time” to gently neutralise the stains and absorb them. Grunt is designed to do the work without you.
Grunt boat cleaner should not be allowed to dry out on the surface if it is to remain active. If this does happen on a very hot day apply another light application.

5) For stubborn stains re-apply Grunt boat cleaner to that area and leave for longer. Thoroughly rinse the entire surface with a sponge and fresh water. You should now have a beautifully clean boat. To maintain your boat in this condition you can apply a high quality marine carnauba wax which seals the surface helping prevent further staining.

Although Grunt boat cleaner is primarily designed for use on fibreglass it is compatible with most two-part paint systems currently used on many timber and steel craft. If you are unsure about the type of surface you are treating always try on an inconspicuous area first.

Always, always wear your PPE (Personal Protection Equipment, ie: goggles, gloves etc) when handling any chemical, its good practice!

Label elements:
Hazard statements: H318: Causes serious eye damage.
Hazard pictograms: GHS05: Corrosion

Signal words: Danger

Precautionary statements: P280: Wear <protective gloves/protective clothing/eye protection/face protection>.
P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove
contact lenses, if present and easy to do. Continue rinsing.
P310: Immediately call a <POISON CENTER/doctor/...>.

Safety Data Sheet

Please see below for a list of supplier sizing guides. If you have any issues, please don't hesitate to get in touch. We're here to help.

If we are missing a supplier, please send us an email and we'd be happy to source the correct sizing guide for you.

If you live in Dublin and would like faster delivery we offer same day delivery with Grab Same-Day. Orders placed before 1pm will be delivered to you in the evening time. Available Monday-Saturday for just €5 on orders over €75 or €12.50 on orders under €75.

We offer free shipping to all addresses in the Republic of Ireland and Northern Ireland for orders over €75.00 (large, bulky and heavy items like kayaks and boats are excluded from free shipping). Orders under €75.00 will be charged a flat rate of €7.50.

Orders are shipped with both DPD Couriers and An Post. 

All orders received before 12pm will be shipped the same day where possible (Monday-Friday). Orders after this time will be shipped the next day. Once the item is shipped the approximate delivery time is 1-2 days

You will receive a tracking number when your items are sent. This tracking will show updates once your order has been collected by our couriers. 

Delays may be experienced during certain times of the year and if this is the case we will contact you as soon as possible via email.

In delivering our best service, we are proud to offer same-day delivery on all orders in county Dublin for only €12.50. Orders for delivery to addresses in county Dublin will be offered this service for €12.50. If the order is placed before 1:00 pm, it will be dispatched that afternoon for delivery that evening (Monday-Friday). Orders placed after this time will be shipped the next day for delivery that day. this service also applies to orders placed at the weekend.

We reserve the right to change these conditions for exceptionally large or heavy items, items of a hazardous nature or if an item has run out of stock and has to be specially orderedWe will keep you posted of any changes to the best of our ability.

We offer shipping to all addresses in the United Kingdom for a flat rate of €24.95. We may not be able to ship large, bulky or heavy items. Please call for such items. Please note customs charges may apply. 

International Shipping Charges 

EU Near 

Order Value  Shipping Charge
€1.00 - €99.99 €12.95
€100 - €299.99 €14.95
€300 and up Free

 EU Mid

Order Value  Shipping Charge
€1.00 - €99.99 €14.95
€100 - €199.99 €19.95
€200 - €449.99 €24.95
€450 and up Free

 EU Far

Order Value  Shipping Charge
€1.00 - €199.99 €35.00
€200 - €499.99 €40.00
€500 and up Free
Terms & Conditions - Please note that any items of exceptional size (volume, weight, length) may require a surcharge. In this event we will contact you in advance for approval. 
Certain items of extraordinary nature (Paint, Oils, Epoxy etc) may not be possible to ship depending on your location. In the even of an order being unsuitable for shipping we will refund your order immediately and contact you to confirm cancellation of your order.
We are unable to ship any liquids, paints, oils or hazardous goods internationally. 

We reserve the right to change these conditions for exceptionally large or heavy items or items of a hazardous nature. We will keep you posted of any changes to the best of our ability.

Inclusion of any product on our website is not a guarantee of it being in stock at the time of ordering. We stock one of the most comprehensive ranges of sailing equipment in the country. However situations beyond our control may occasionally result in an item(s) being temporarily unavailable.

  • Items discontinued by manufacturers or that are no longer available: we aim to remove from our website as quickly as possible, but remember, we are only human after all.
  • If we are unable to supply any item(s) within 7 days, you will be contacted by telephone or email to offer alternatives or cancel your order. Available to order items, marked to follow will be sent automatically when they become available. We do NOT make additional charges for this service.
  • In any case, we aim to deliver goods within a maximum time frame of no more than 10 days from receipt of order. If we are unable to do this, you will be contacted to make arrangements for any necessary refund to be issued. 

We want you to be 100% satisfied with any online order placed with us. Therefore if you wish to return an item for whatever reason you may contact us by email at to organise a return. 

All returns must be organised within 30 days of receiving your order. Refunds are available within the first 14 days after receiving your order. After this period we can offer an exchange or store credit. 

Goods can be returned for a full refund plus any shipping paid at the time of purchase if they are faulty or if the wrong item has been dispatched.

Items must be unused and still have their original packaging and labelling attached.

Nothing in these conditions affects your statutory rights as a consumer.

The PayPal account or card used originally for the purchase will be credited with the original purchase amount 

If you are looking to exchange the goods for an alternative product or size, you will be liable for the extra shipping costs from our end.

Any footwear returned to us must be in its original condition, including boxes and footbeds.

Any items that we deem unhygienic will not be processed so please clean faulty goods if returning them.

Please note that if items are returned you should ask for proof of postage from your post office as we reserve the right to refuse a refund if an item is lost whilst being returned. Any item bought online can also be returned in store within the terms and conditions of sale, just remember to bring along your receipt.

Special Orders
If you have changed your mind on a non regular stock item that was ordered specially this can be returned for store credit only.

Returns Address

Viking Marine,
The Pavilion,
Marine Road,
Dun Laoghaire,
Co. Dublin,
Republic of Ireland.

Phone: +00 353 (1) 2806654

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