Abstract: The application discloses a method for applying a fouling-release coating system to a surface, said surface suitably provided with an anticorrosive coat, and an article comprising a substrate, said substrate having a surface, preferably an anticorrosive coat on at least a part of the surface of said substrate and a tie-coat on said substrate. A curing agent composition comprising an amino-silane adduct comprising a high molecular weight amine, HMWA, as well as a tie-coat comprising said curing agent composition are also provided.

Abstract: The present application discloses a fouling control coating composition comprising a polysiloxane-based binder system, 0.01-20% by dry weight of one or more hydrophilic-modified polysiloxanes, and one or more biocides. The hydrophilic-modified polysiloxane may be a poly(oxyalkylene)-modified polysiloxane, e.g. a polysiloxane having grafted thereto poly(oxyalkylene) chains and/or having incorporated in the backbone thereof poly(oxyalkylene) chains. The poly(oxyalkylene) may e.g. be selected from polyoxyethylene, polyoxypropylene and poly(oxyethylene-co-oxypropylene) (polyethylene glycols/polypropylene glycols). The application further discloses a marine structure comprising on at least a part of the outer surface thereof an outermost coating prepared from the coating composition.

Abstract: The present application discloses a silicone-based fouling-release coat comprising a polysiloxane-based binder matrix constituting at least 40% by dry weight of said coat, wherein more than 65% by weight of said the binder matrix is represented by polysiloxane parts, said binder matrix of said coat having included as a part thereof zwitterionic moieties and/or said coat comprising one or more zwitterionic compounds. In some embodiments, the coat further comprises one or more active ingredients selected from biocides and enzymes, in particular biocides. The application also relates to corresponding coating compositions (paints), coating systems and to the use of the combination of constituents having included one or more zwitterionic functionalities and one or more active ingredients selected from biocides and enzymes, for improving the antifouling properties of a polysiloxane based coating composition.

Abstract: The application discloses a method for applying a fouling-release coating system to a surface, said surface suitably provided with an anticorrosive coat, and an article comprising a substrate, said substrate having a surface, preferably an anticorrosive coat on at least a part of the surface of said substrate and a tie-coat on said substrate. A curing agent composition comprising an amino-silane adduct comprising a high molecular weight amine, HMWA, as well as a tie-coat comprising said curing agent composition are also provided.

Abstract: The present application discloses a fouling control cured paint coat comprising a polysiloxane-based binder matrix, said binder matrix having included as a part thereof pendant hydrophilic oligomer/polymer moieties. The application further discloses a marine structure comprising on at least a part of the outer surface thereof an outermost coating of the cured paint coat. Moreover, the application discloses the use of a polysiloxane component modified with pendant hydrophilic oligomer/polymer moieties for improving the antifouling properties of a polysiloxane based coating composition.

Abstract: The present application discloses a fouling control cured paint coat comprising a polysiloxane-based binder matrix and one or more biocides, said binder matrix having included as a part thereof hydrophilic oligomer/polymer moieties, wherein the weight ratio between the hydrophilic oligomer/polymer moieties and the one or more biocides is in the range 1:0.02 to :20, and wherein ?50% of the binder system is polysiloxane parts. The application further discloses a marine structure comprising on at least a part of the outer surface thereof an outermost coating of the cured paint coat. Moreover, the application discloses the use of the combination of one or more polysiloxane components modified with hydrophilic oligomer/polymer moieties and one or more biocides, wherein the weight ratio between the hydrophilic oligomer/polymer moieties and the one or more biocides is in the range 1:0.02 to :20, for improving the antifouling properties of a polysiloxane based coating composition.

Abstract: The present application discloses a fouling control coating composition comprising a polysiloxane-based binder system, 0.01-20% by dry weight of one or more hydrophilic-modified polysiloxanes, and one or more biocides. The hydrophilic-modified polysiloxane may be a poly(oxyalkylene)-modified polysiloxane, e.g. a polysiloxane having grafted thereto poly(oxyalkylene) chains and/or having incorporated in the backbone thereof poly(oxyalkylene) chains. The poly(oxyalkylene) may e.g. be selected from polyoxyethylene, polyoxypropylene and poly(oxyethylene-co-oxypropylene) (polyethylene glycols/polypropylene glycols). The application further discloses a marine structure comprising on at least a part of the outer surface thereof an outermost coating prepared from the coating composition.

Abstract: The present invention relates to tie-coat compositions for fouling-release paint systems. The invention provides a method of coating a substrate with a coating composition comprising at least two types of functional polysiloxane compounds selected from epoxy-functional polysiloxanes, amino-functional polysiloxanes, and particular adhesion promoting agents of the polysiloxane type. The present invention also provides a substrate coated with such a composition and a composition particularly useful for said method. The binder phase may also comprise constituents of epoxy paint compositions, e.g. epoxy resins and amine curing agents. The compositions are particularly relevant in combination with diorganopolysiloxane-based fouling-release coatings and anticorrosive epoxy primer coatings.

Abstract: The present application discloses a condensation cure silicone RTV tie-coat composition comprising (i) a silanol-terminated polydiorganosiloxane, and (ii) 0.1-10% by wet weight of the total tie-coat composition of one or more adhesion promoters selected from the group consisting of bis(trialkoxysilylalkyl)amines and N,N?-bis(trialkoxysilylalkyl)alkylenediamines and optionally (iii) up to 30% by wet weight of the total tie-coat composition of one or more hydrolysable silanes. Further are disclosed a method of restoring a damaged foul release coating system area on a substrate and a method of applying a foul release coating system to a freshly applied substrate of anticorrosive coat, utilizing tie-coat composition.