Questions? We are happy to help
Looking for the right line, the right paint or that one part? Call, email or visit us in Harlingen. We are happy to help, whether you need one shackle or a complete outfit for the fleet. Below you will also find answers to the most frequently asked questions per product group.
Mon to Fri 08:00–12:00 and 13:00–17:00

- Call0517 - 201 009Mon to Fri, 08:00–12:00 and 13:00–17:00
- Emailinfo@hoacmarine.nlFeel free to include a photo or item number
- FormAsk your question onlineChoose a topic so your question goes straight to the right person
- Visit usKoningsweg 9, HarlingenFree pickup, also for orders
How can we help you?
Choose a topic. Many answers are ready for you, and otherwise we will set up your question in the form.
- Rope and splicingPer metre, on reels, eyes, thimbles and soft shackles
- Paint and coatingsWhich paint, how many litres and data sheets
- Non-paint and toolsBrushes, rollers, tape, sanding and machines
- Safety and lifejacketsLifejacket servicing, extinguishers and protection
- Pumps, navigation and deckParts, replacement models and advice
- Ordering and quotesBusiness orders, volume pricing and VAT
- Shipping and pickupDPD, Koopman Transmission, pallet or free pickup in Harlingen
- Returns and complaintsWant to send something back or is something not right?
Ask your question
The more you tell us, the faster we can help. Think of an item number, diameter, length or a photo of the type plate.
Frequently asked questions
Type a word, for example ‘reel’, ‘antifouling’ or ‘return’, or choose a topic.
Rope and splicing
Do you sell rope by the metre?
Yes. Many lines can be bought per metre or as a complete reel. Need large quantities? Then request a quote .
How do I measure the diameter of my rope?
Tape the rope tightly and measure it with a rope gauge, or check the invoice for your previous line. How to measure rope properly.
Do you also make eyes, thimbles and splices?
Yes, in our own workshop in Harlingen. Indicate on the product which finish you want. If you do not specify an eye length, we make the eye 150 cm as standard, always with a protective sleeve.
How do I measure an eye, loop or soft shackle?
The eye length is the distance from the start of the splice to the end of the eye. Measure a loop or soft shackle on the inside, fully stretched. Also state what load it must carry. For a soft shackle we work with a breaking strength 10% below that of the rope.
Which line do I need?
Use the line finder: in a few clicks you can see which lines fit. Not sure about material or breaking strength? Call or email us, we are happy to help.
What is BR Ropes?
BR Ropes is our own rope brand, including BR-HMPE, BR-Float yellow/blue, BR-Plus and BR-Steel/Grey HMPE. View BR Ropes.
Can I return a line made to measure?
No. A line cut or spliced to measure is made especially for you and therefore cannot be returned. So better to measure twice than to come up short once.
Paint and coatings
Which paint brands do you sell?
Including Jotun, Hempel, Sigma, Epifanes, Nelf and Werdol: primers, topcoats, fillers, antifouling, varnishes and adhesives and sealants. View paint and coatings.
Which paint do I need?
That depends on the substrate, what is on it now and where the part is: below or above the waterline. The paint selector helps you choose. On paint advice you will find everything in one place.
How many litres of paint do I need?
Divide the surface area by the coverage from the data sheet, multiply by the number of coats and add 10 to 15% for loss. The paint calculator works it out for you.
Where can I find the technical data sheet and the safety data sheet?
With every paint product, and collected on the page data sheets. The TDS gives coverage, film thickness, mixing ratio and drying times. The SDS describes safety and storage.
In which order do I build up a paint system?
Assess the substrate, prepare, primer, filler, undercoat or tie coat and finish. On paint system step by step you can read it step by step, with answers to questions about 1K and 2K, antifouling and osmosis.
Can I return paint mixed to colour?
No. Paint made specially to colour cannot be returned. Not sure about the colour? Ask us before you order.
Non-paint and tools
What does non-paint include?
Everything for painting except the paint itself: brushes, rollers, masking tape, thinners, abrasives, personal protection and machines. You will find brands like Rupes, Mirka, Sia, Festool, 3M, Norton, Colad, BLS and Americol. View non-paint.
Which thinner should I use?
Always the thinner stated in your paint's data sheet. The wrong thinner can make the paint separate or dry badly. And thin with care: more does not make it better, just thinner.
Does this sandpaper or sanding disc fit my machine?
Check the diameter and hole pattern of the sanding pad. Not sure? Send us the make and type of your machine and we will find the right abrasive.
Safety and lifejackets
Do you service lifejackets?
Yes, inflatable lifejackets of 150N and 275N. The service costs €20 per lifejacket excl. VAT, plus any replaced parts. A certificate is available on request. All about lifejacket servicing.
How old can a lifejacket be?
No older than 14 years. We reject older lifejackets. The production date is on the label inside the lifejacket.
Do you also service Secumar lifejackets?
No, we do not service Secumar lifejackets.
How often should a lifejacket be serviced?
In commercial shipping we recommend every year, in recreational boating every 2 years. Double-chamber SOLAS lifejackets are serviced every year, single-chamber ISO lifejackets at least every 2 years.
Which lifejacket suits me?
Choose the right N rating for your use and sailing area. The best lifejacket is the one you are wearing. View safety and protection or ask us for advice.
Pumps, navigation and deck equipment
I am looking for a part or a replacement model.
Send us a photo of the type plate, the item number or the old part code. We will find the right part or a suitable alternative.
How do I choose the right pump?
Choose a pump by delivery head and litres per minute, not by how tough it looks. Give us those details, plus the voltage and the medium (fresh water, salt water, oil or bilge), and we will help you choose.
I can't find a product in the web shop.
There are more than 7,000 items online, but we have more in stock than we show online. Search by name, item number, EAN or IMPA code, or ask us via the form.
Ordering and quotes
Are prices including or excluding VAT?
You choose. At the top of the site you can switch between prices excl. and incl. VAT. By default you see prices excl. VAT.
Can I request a quote?
Yes. Add the products to the quote list and request the quote in one go. Handy for volume pricing, large orders or when you need internal approval first.
Do you also supply commercial shipping and businesses?
Certainly, that is what we are here for. Businesses order with prices excl. VAT and can request a quote. Mention your company or vessel name and it will appear on the invoice.
Can I order by item number or IMPA code?
Yes, you can search by name, item number, EAN or IMPA code in the search bar. Have a long list? Email it to info@hoacmarine.nland we will turn it into a quote.
Can I still change my order?
Contact us as soon as possible and mention your order number. If the order has not yet been processed, we will be happy to change it.
Shipping and pickup
How will my order be shipped?
Parcels up to 30 kg are shipped by DPD. Paint from 4 litres and dangerous goods (ADR) go as packages with Koopman Transmission. Items heavier than 23 kg go on a pallet, also with Koopman. At checkout you will see which shipping method and costs apply to your order.
Can I pick up my order?
Yes, free at Koningsweg 9 in Harlingen. We will let you know when your order is ready. Pickup is possible on working days from 08:00 to 12:00 and from 13:00 to 17:00.
When will I receive my order?
That depends on the product and the supplier. Need something urgently? Give us a call and we will see what we can do.
Returns and complaints
Can I return something?
Please contact us before sending anything back, so we can arrange it properly. You can register a return up to 14 days after delivery. Return costs are equal to the shipping costs. Custom work, rope cut or spliced to measure, paint mixed to colour and opened tins cannot be returned.
My product is damaged or not right.
Sorry to hear that! Send us your order number and a photo via the form or by email. We will work out a solution together.
No question found with that word. Feel free to ask your question via the form or call 0517 - 201 009.










