CN Algés at Facebook
Share our website

Send us a message if you wish to be contacted

Osmosis Treatment

Osmosis is the largest fiberglass disease, as well as being an aesthetic problem.

A hull affected by osmosis can lose up to 30% of its strength and lose performance in case of high-performance boats.

Resuming the technical problem, the water particles in contact with the outer layer of gelcoat´s vessel, attempt cross this barrier and can reach to the first fiberglass layers and then starts a chemical process calledhydrolysis, where the water begins to break the resin Molecular chain. In this process there is the formation of combings wich under osmotic pressure produces bubbles on the outer surface of the hull.

Delaying the treatment results in a greater contamination in a short period of time.

At CNAlgés we can verify moisture levels and perform the appropriate work to return the original characteristics of the hull.

At what time do you open??
CNAlgés is open from 09:00 until 18:00 monday to Friday. On Saturdays we open at 09:00 until 13:00.
Regarding security how does CNAlgés works?
At CNAlgés we have specialized security staff 24 hours a day.
What is the price for a repair or parking of a boat?
To find out our prices for any type of service please contact us by phone +351 213 032 440 or email and we will give you a quotation according to your needs.
Does CNAlgés Staff works outside of the boatyard??
Yes,our staff can go to your boat and get the job done.
Should I make an appointment if I want to lift my boat?
For logistics and organization resons we advise you to contact us 24 hours in advance to make the lift in.
Can I live on board while my boat is on you boatyard?
Yes, you can live on your boat while you are in CNAlgés.


The Sopromar shipyard is a family business with many years of experience in providing efficient and quality services to its customers. From a small repair to a bigger and more complex intervention, Sopromar has de knowledge and expertise to accomplish any project.   

Being the biggest Shipyard in the Algarve, its great location makes it the first safe harbor for those who come from the west coast of Europe, so like a stop for those who arrive or leave the Algarve. 

Find out more at:


We can only guarantee the best service if we work if the best parts and materials. We work with the most prestigious brands to make sure our clients leave with top of the line products at competitive prices.