Method and machine for forming protective film on sprayed coating of large-sized product

A method of forming a protective film on a surface of a large-sized product finished with a sprayed coating, such as an automobile, by applying a strippable paint to a surface of said sprayed coating, said method comprising the steps of:

• applying said strippable paint to said product;
• preliminarily drying said strippable paint applied to said product;
• and
• then non-preliminarily drying said product.

A machine for forming a protective film on a surface of a large-sized product finished with a sprayed coating such as an automobile by applying a strippable paint to a surface of said sprayed coating, said machine comprising:

• an application booth for applying said strippable paint to said product;
• a preliminary drying furnace for preliminarily drying the strippable paint applied to said product;
• and
• a non-preliminary drying furnace for non-preliminarily drying said product already preliminarily dried.

A method of forming a protective film on a surface of a product finished with a sprayed coating and having an outer coating surface provided with holes for ejecting liquid or equipped with components whose airtightness been enhanced by sealing members or the like and to which a strippable paint is not applied such as an automobile, by spraying said strippable paint against said product, said method comprising the steps of:

• masking a region with a masking material on said sprayed coating surface, said region being wider than an unapplied region to which the strippable paint is not to be applied;
• spraying said strippable paint against said coating surface of said product including said unapplied region to form a film;
• peeling said masking material from said unapplied region containing said holes or components;
• and
• applying said strippable paint to unapplied regions remaining around said holes or components so as to repair said film of said strippable paint.

A method of forming a protective film on a surface of a large-sized product finished with a sprayed coating such as an automotive body by applying a strippable paint to a surface of said sprayed coating, said method comprising the steps of:

• washing away contaminations such as dust, dirty water, and rainwater from said surface of said coating of said product;
• subsequently applying said strippable paint;
• preliminarily drying said product to which said strippable paint has been applied;
• and
• then non-preliminarily drying said product.

A machine for forming a protective film on a surface of a large-sized product finished with a sprayed coating such as an automobile by applying a strippable paint to a surface of said sprayed coating, said machine comprising:

• a pretreatment device including a washing device for washing away contaminations such as dust, dirty water, and rainwater from said surface of said coating of said product and a dehydrating device;
• an application booth for applying said strippable paint, said booth being located contiguous with said pretreatment device;
• a preliminary drying furnace for preliminarily drying the strippable paint applied to said product;
• and
• a non-preliminary drying furnace for non-preliminarily drying said product already preliminarily dried.