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Gelcoat Sanding and Polishing for Yachts
Factory Gelcoat Production and Maintenance for Boats and Yachts
Salt, water and wind all challenge marine surfaces. To get the perfect lustre and shine of a gelcoat surface on a newly manufactured yacht or boat, the crucial component is the exterior layer of the gelcoat. For yachts, the gelcoat surfaces are made to be long-lasting, to be able to resist UV damage and rough conditions at sea, but they must be maintained for a long life. And a maintained gelcoat surface is not only about looks. You will also protect the yacht or boat from salt, filth, mould, and excessive moisture with a well kept gelcoat surface.
It is easy to condition a gelcoat finish with Mirka solutions. Use Mirka® Galaxy or Abralon® for machine sanding the surface, work with Polarshine to remove swirls and polish it, and finish the job by protecting the surface. You can find the perfect match for your polishing needs with this handy compound grade scale. We also offer complete finishing kits to make it even easier.
For a superb shine on yachts and boats
Sanding and Polishing Gelcoat Surfaces
2/8 - Step 1
Sanding
Start sanding with Mirka® Galaxy 240 grit together with Mirka® DEROS 650CV
in case of significant orange peel. Otherwise, start from 320 grit.
3/8 - Step 2
Continue sanding with Mirka® Galaxy, 500 grit.
4/8 - Step 3
Continue by attaching the Mirka® Net Interface to the DEROS 650CV. Sand with Galaxy, 800 grit.
5/8 - Step 4
Finish the sanding with Mirka® Galaxy 1000 grit together with a Mirka® Net Interface.
Use 1200 grit on dark colours.
Clean the sanded area with a Micro Fiber cleaning cloth. The sanded area is ready to be polished.
6/8 - Step 1
Polishing
Start by fitting the Twisted Wool Pad to the Mirka® PS 1437 polisher tool.
Apply Polarshine® 45 polishing compound onto the wool pad. Start polishing.
7/8 - Step 2
Light coloured surfaces
Fit a Waffle polishing foam pad and apply Polarshine® 12 onto the pad. Polish the surface.
Dark coloured surfaces
Change to a Black Waffle M foam pad, apply Polarshine® 12 Black polishing compound and polish the surface.
8/8 - Step 3
Clean the polished area with a micro fiber cleaning cloth.
Process steps
Redefining innovation in surface finishing
Introducing the Next Generation of Mirka® Power Tools
The award-winning Mirka® Power Tools have entered a new era. The lineup is now even stronger with advanced technology, improved performance, and user-focused design. Meet the stars of the new generation.
DEROS II – The enhanced orbital sander series now features 8 upgraded models, delivering more power and even smoother sanding.
DEOS II – Our refined low-profile orbital sanders, offering superior precision and control with 4 updated models.
DEROS RS – The all-new heavy-duty rotary sander, engineered for maximum power and precision in tough applications.
DEXOS – A state-of-the-art M-Class dust extractor, ensuring optimal performance and dust-free work environments.
Corded 150 mm polisher
POLAROS® RP 600
The POLAROS® RP 600 is a professional 150 mm rotary polisher, powered by a quiet 750 W brushless motor.
POLAROS's low-profile, lightweight design offers superb control, making it ideal for detailing, bodywork, marine, wood, and glass applications.
The unique, patent-pending Ramp Up and Ramp Down functions add to the POLAROS's usability by ensuring smooth starts without splatter and protecting the polisher and the surface from excessive pressure.
Harness the power of modern polishing technology in every finish with POLAROS.
A breath of fresh air in sanding and dust extraction
DEXOS® 1230 M AFC – Full-Size, M-Class Dust Extractor
Keep your work environment dust-free and healthy with the DEXOS® 1230.
DEXOS 1230 M AFC shares many features with the compact, Red Dot-awarded DEXOS 1217 M AFC. The main difference is that the 1230 M is built as a full-size model with a 30-litre container for extended, uninterrupted use.
With a 1,200 W brushless motor, built in hose storage and two sockets with optional autostart functionality, the DEXOS is a great asset for your surface finishing needs.
Steady grip. Less than 3.2 kg. High flexibility.
LEROS-S. Reach Closer.
The LEROS-S features the well-known abilities of the LEROS, but in a shorter, even more easily handled length. That makes it perfect for sanding larger areas faster, such as on yachts and boats. The LEROS-S has two dedicated grip points for full control.
Thanks to its lightness, balance and easy manoeuvrability, the LEROS-S makes it possible to sand large areas faster and easier. The large sanding pad with its 5 mm orbit works especially well for levelling filler.
It features a highly flexible sanding head to make sanding easier and more ergonomic. A better working position makes sanding more effortless and improves the end result as well as productivity.
Save your health, time, and money
Sanding Without Dust
Do you get covered in dust when sanding? Try the benefits of Mirka's pioneering sanding solutions and see how a dust-free working environment can boost your business.
Benefits from dust-free sanding
Healthier working environment – Stop dust from getting into your lungs
Time-saving – No cleaning after sanding and clean abrasives cut better
Money-saving – No clogging lets you sand longer with the same abrasive
High-quality finish – Thanks to a finer scratch pattern
Nautor's Swan, Finland
High-Quality Finish
For Finnish yacht builder Nautor, a high-quality finish is about respecting the company’s roots and heritage, and it takes the best kind of power tools and abrasives to accomplish that. Benny Brännbacka from Nautor shares with us what it means to collaborate with Mirka, and how important client satisfaction is when building spectacular yachts with Mirka's solutions.
'Working with Mirka is very good, we are continuously collaborating.'
Why Choose Mirka?
Save time and money – You can cut costs and reduce working hours
Why Choose Mirka?
Sand and polish safely without strain – Our tools and abrasives are ergonomic, efficient, and easy to use
Why Choose Mirka?
Improve the quality of work – The finish is excellent, with less effort
Water-Based Polishes
All Mirka polishes are water-based and produced in Finland. There are many benefits of choosing a water-based polishing compound.
Water-based compounds remove scratches permanently, whereas solvent-based compounds can lose gloss after cleaning the surface with a degreaser and in some cases, they may only temporarily hide the scratches.
Solvent-based polishes may be effective in the short run, but they are more damaging and harmful.
Kim Rönnholm
Portfolio Manager, Mirka
Savings calculator for yacht surface finishing process
Use the calculator to understand what savings can be achieved with the right process and tools
Your savings
Want to know more?
If you want to know more about Mirka's process and how we have calculated savings, please fill in the form below. We will deliver an extensive white paper on marine surface finishing savings, free of charge.
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