The present invention relates to an anticorrosive agent for cavity preservation, and to the use thereof. The anticorrosive agent has a base composition of 40 to 50 wt. % base fluid, 3 to 10 wt. % alkyd resin, 10 to 20 wt. % sulfonate and/or salicylate component, 15 to 25 wt.˜% filler, 0.003 to 0.007 wt. % siccative catalyst, based in each case on the total mass of the anticorrosive agent. In addition to the base mixture, the anticorrosive agent includes 1 to 5 wt. % phyllosilicate and/or 1 to 8 wt.˜% ester wax and/or paraffin wax, based in each case on the total mass of the anticorrosive agent, for adjusting the rheological properties of the anticorrosive agent. The anticorrosive agent, however, does not include any aminic corrosion protection or binder components, or any anti-skinning agent.

A coating composition for application to a substrate utilizing a high transfer efficiency applicator. The coating composition includes a carrier, a binder, a corrosion inhibiting pigment. The coating composition has an Ohnesorge number (Oh) of from about 0.01 to about 12.6. The coating composition has a Reynolds number (Re) of from about 0.02 to about 6,200. The coating composition has a Deborah number (De) of from greater than 0 to about 1730.

The present invention relates to a composition comprising —a specific binder containing at least one cocondensate based on at least one ω-glycidyloxyalkylalkoxysilane and a bis(alkoxyalkylsilyl)amine, —water, —alcohol in an amount of less than 3% by weight, based on the composition, —at least one addition selected from the group consisting of particulate metals, metal alloys and metal compounds and —optionally at least one additive, where the pH of the composition is from 1 to 14 and the dry residue of the binder is from 1 to 50% by weight, based on the binder used, a process for the production thereof and also the use thereof for coatings, in particular for the protection of metals against corrosion.

The present disclosure provides a method for coating a composite structure, comprising applying a single pretreating composition on a surface of the composite structure, the single pretreating composition comprising a first acid aluminum phosphate comprising a molar ratio of aluminum to phosphate between 1 to 2 and 1 to 3, and heating the composite structure to a first temperature sufficient to form an aluminum phosphate polymer layer on the composite structure.

Methods and compositions for treating a substrate are provided. The composition contains a corrosion-inhibiting metal cation and a conjugated compound.

The present disclosure provides a method for coating a composite structure, comprising forming a first slurry by combining a first pre-slurry composition comprising a first phosphate glass composition, with a primary flow modifier and a first carrier fluid, wherein the primary flow modifier comprises at least one of cellulose or calcium silicate; applying the first slurry on a surface of the composite structure to form a base layer; and heating the composite structure to a temperature sufficient to adhere the base layer to the composite structure.

A method of making cerium citrate includes combining cerium carbonate and citric acid to produce cerium citrate and carbon dioxide. The cerium citrate is substantially free of negative ions other than citrate. The cerium citrate can be used in a corrosion inhibitor composition.

A structural member may include a primary metal member having a metal surface containing iron, the metal surface susceptible to corrosion, and a protective outer coating formed on the metal surface to resist corrosion. The coating may include a polyaspartic top coat layer and a passivation layer. The coating may be formed of a first part including an inorganic acid phosphate mixture and a second part including an inorganic alkaline metal oxide or hydroxide mixture. The first part may include an inorganic acid phosphate mixture having acidic phosphate component, filler, water as solvent, suspension agent, and nonionic surfactant. The second part may include an inorganic alkaline metal oxide or hydroxide mixture having metal oxide or hydroxide, filler, water as solvent, suspension agent, and surfactant.

A polypyrrole-coated graphene corrosion inhibitor container and its preparation method and a composite coating and its application are provided. The polypyrrole encapsulated graphene corrosion inhibitor container includes graphene oxide and a polyvinylo layer encapsulated on the surface of the graphene oxide. The invention is based on a polymerization reaction by mixing a polypyrrole acid solution, a graphene oxide dispersion, and an initiator to obtain a polypyrrole encapsulated graphene corrosion inhibitor container. The polypyrrole encapsulated graphene corrosion inhibitor container regulates the release rate of the corrosion inhibitor by wrapping the polypyrrole around the graphene oxide so that it is released rapidly in alkaline solutions and at a slower rate in neutral media. The results of the practical example show that the polypyrrole encapsulated graphene corrosion inhibitor container can regulate the release rate of the corrosion inhibitor and has excellent corrosion protection properties and corrosion protection durability.

The present invention relates to an aqueous primer comprising: (A) a polysiloxanesol; and (B) 0.1 to 30 wt % of a water-soluble zinc salt having a solubility in deionised water of at least 0.5 g/L at 25° C.