ultramarin marine translations
ultramarin.online
nl aangroeiwerende verf   verf die giftige stoffen bevat, voor het verven van de scheepsbodem, dient om de algengroei, schelpen e.d. tegen te gaan. Aangroeiwerende verfsoorten kunnen kwikzilver, koper en andere metaalverbindingen bevatten die aan het water worden afgegeven en zijn zo een vrij grote belasting voor de flora en fauna, en - wanneer deze in de voedselketen geraken - een gevaar voor de gezondheid van mensen, planten en dieren op het land. Voor de productie en het gebruik van aangroeiwerende verfsoorten gelden daarom steeds strengere richtlijnen.
de Antifouling(farbe)
Patentfarbe
faulfeste Farbe
gifthaltige Farbe für den Anstrich des Schiffsbodens, der dazu dient, Bewuchs mit Algen, Muscheln u.dgl. Sofern Antifoulingfarben Quecksilber, Kupfer und andere Metallverbindungen enthalten, die ans Wasser abgegeben werden und sich dort anreichern, stellen sie eine erhebliche Belastung der Flora und Fauna - und durch Weitergabe in der Nahrungskette - eine Gesundheitsgefahr für die Pflanzen, Mensch und Tier auf dem Land dar. Für die Herstellung und Verwendung von Antifoulingfarben gelten daher zunehmend strenge Richtlinien.
en anti-fouling (coat)
antifouling paint
a composite of paints against the attachment of organisms that might cling or grow into the outer underwater skin of a vessel. In as much as they may contain extremely poisonous substances such as arsenic or mercury the polluting effects could be enormous. Therefore, they have to be chosen and used with care, and should only applied when necessary.
fr peinture antivégétale
peinture antisalissante
peinture antifouling
Peinture toxique destinée aux carènes et dont le rôle est de prévenir la fixation et le développement de coquillages, de mollusques ou d'une végétation marin
es pintura antivegetativa
pintura antiincrustante
     
it vernice antivegetativa      
     
en

Antifouling paints can be classified into two main types:
- eroding antifouling (soft leaching paints)
- hard antifouling (contact paints)
Both types can be further sub-divided into
- copper-based paints, in which the main biocide is copperous oxide (the natural form of copper), together with booster biocides of various types.
- cuprous thiocyanate paints, erroneously classified as 'copper free', although their antifouling agent is a less potent kind of copper.
The latter are less effective and long lasting as the copper-based biocides.
The use of tin as a biocide has been banned in many countries because it is a heavy metal poison that contaminates the food chain and is very hazardous to human health.

The choice between a hard or soft antifouling paint depends on a number of variables, including local water temperature, pollutants in the water, the frequency of use of the vessel and type of vessel. Vessels that are fast or are frequently subject to heavy seas should not use soft antifouling paints, as the additional water friction will quickly wash away the paint. A technique that is occasionally recommended by some paint companies is to apply a hard antifouling and then apply an eroding paint on top. This provides good protection in a wide variety of applications. However, it is strongly recommend to consult with a quality paint manufacturer before making any changes to a current antifouling scheme or when painting a new vessel for the first time.

Important! An antifouling paint with a non-copperous oxide biocide should always be used on all aluminium vessels and their appendages. If a copper-based antifouling paint is applied to an aluminium vessel, the two metals will set up a galvanic reaction (a form of corrosion). This will cause extensive damage to any aluminium surfaces. Before antifouling an aluminium or steel vessel, or appendages such as a propeller leg, itís always advisable to apply an epoxy- or high quality vinyl-based anti-corrosion paint to ensure a strong waterproof barrier has been established between the metal hull and antifouling paint.

 
 
source: Club Marine Limited