There is provided herein a coating composition including an organic binder and a combination of a hydrolyzable or hydrolyzed polysiloxane and a epoxy-functional polysiloxane optionally with a hardener. There is also provided a paint including the same and a process of making the coating composition.

A coating of an outer plate contains a perylene-based pigment, and satisfies (R.sup.OH(P)/R.sup.OH(OA))≥74, where R.sup.OH(P) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and R.sup.OH(OA) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of PWC, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.

Described herein is a water-based, alkaline cleaner concentrate for producing a cleaner for metallic surfaces, the concentrate including a) at least one (meth)acrylic acid homopolymer having a weight-average molar mass in the range from 3 000 to 19 000 g/mol and b) at least one (meth)acrylic acid copolymer having a weight-average molar mass in the range from 50 000 to 100 000 g/mol. Also described herein are a corresponding cleaner for metallic surfaces with reduced pickling erosion, a process for anticorrosive treatment of metallic surfaces that includes a corresponding cleaning step, a metallic surface obtained by the process, and a method of use thereof in the sector of the metalworking industries.

The process for coating a guide comprises at least the steps of: supplying a guide (1) made of metallic material and comprising an outer surface (2, 3) provided with a first portion (2) adapted to slide a carriage (4) and a second portion (3) separate from the first portion (2); depositing a first coating layer (9) on the first portion (2) and on the second portion (3); cataphoretic painting the guide (1) adapted to deposit a second coating layer (12) onto the first portion (2) and onto the second portion (3) on top of the first coating layer (9); and removing the second coating layer (12) from the first portion (2).

A coating of an outer plate contains a perylene-based pigment, and satisfies (R.sup.OH(P)/R.sup.OH(OA))74, where R.sup.OH(P) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and R.sup.OH(OA) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of PWC, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.

A coating of an outer plate contains a perylene-based pigment, and satisfies (R.sup.OH(P)/R.sup.OH(OA))74, where R.sup.OH(P) is the highlight reflectance of the coating of the outer plate at a peak wavelength at which reflectance reaches the maximum value in a spectral reflectance curve, and R.sup.OH(OA) is the average highlight reflectance of the coating of the outer plate in a complementary wavelength range. A coating of an inner plate part contains a perylene-based pigment and an iron oxide-based pigment, the content of the perylene-based pigment in the coating of the inner plate part is in units of PWC, and the mass ratio of the content of the iron oxide-based pigment to the content of the perylene-based pigment in the coating of the inner plate part is 3-20%.

Disclosed herein are cationic electrodepositable coating compositions that are capable of providing cured coatings of low gloss.

Described herein is a water-based, alkaline cleaner concentrate for producing a cleaner for metallic surfaces, the concentrate including a) at least one (meth)acrylic acid homopolymer having a weight-average molar mass in the range from 3 000 to 19 000 g/mol and b) at least one (meth)acrylic acid copolymer having a weight-average molar mass in the range from 50 000 to 100 000 g/mol. Also described herein are a corresponding cleaner for metallic surfaces with reduced pickling erosion, a process for anticorrosive treatment of metallic surfaces that includes a corresponding cleaning step, a metallic surface obtained by the process, and a method of use thereof in the sector of the metalworking industries.