Interior coating for aluminium packaging, essential for protecting the quality of the products and preventing damage to the material with which they come in contact.

The excellent quality of the Protaral^® interior coatings, their reliability and immediate availability worldwide are key factors behind the success of these products over the years, above all in demanding industries where high quality product appearance is essential, such as the pharmaceuticals & cosmetics and food & beverage markets. Weilburger Coatings (the Grebe Group) constantly invests in research to improve its coatings for aluminium packaging and meet new market requirements. Today a company opting to use aluminium packaging conveys its great sense of responsibility, awareness and commitment to the environment.

	Color	Polymer Resistance	Application	Suitable for
Protaral® Monobloc
	Pigmented	Epoxy phenolic Very high resistance to alkaline products	Multipurpose	Suitable for all standard aerosol cans. For methylene products containing chloride
	Clear gold	Epoxy phenolic Very high resistance to acidic products	Very easy to spray even on older spraying lines	Suitable for large gauge aerosol cans. Developed especially for whipped cream
Protaral® Classic
	Clear gold	Epoxy phenolic amino modified Very high resistance to acidic products (tomato)	Multipurpose. Very easy to spray with all kinds of spraying machines. Performs well also on older production plants and lines where dirt build up is a problem. High solids content	Suitable for all tube gauges. Standard uses (wide range of applications, very good average performance)
	Clear gold	Epoxy phenolic amino modified Very high resistance to acidic products	High solids content	Standard uses (wide range of applications, very good average performance). Optimized to achieve very little residual smell inside the coated tubes
	Clear gold	Epoxy phenolic amino modified Very high resistance to acidic products (tomato)	Particularly suitable for high speed production lines. High solids content	Low overspray (avoids issues related to overspray build-up and subsequent external over-coating problems with water-based enamels)
	Clear gold	Epoxy phenolic amino modified Resistant to ammonia and alkaline substances resistance (hair dyes)	Particularly suitable for high speed production lines. High solids content	Standard uses (wide range of applications, very good average performance). Avoids issues related to overspray build-up and subsequent external over-coating problems with water-based enamels
	Clear gold	Epoxy phenolic Resistant to acidic products	Specifically for toothpaste	Specially formulated for toothpaste
	Clear gold	Epoxy urea Ammonia resistant	Very good behaviour also on older production lines. High viscosity. Medium solids content	Specially formulated to fulfils L’Oréal specification “ammonia test”
	Pigmented	Epoxy phenolic amino modified Excellent ammonia resistance	Performs very well on older production lines. High viscosity. Medium solids content	Strong hair dyes
Protaral® Hydro
	Clear gold	H2O epoxy phenolic General purpose. High resistance to acidic and good resistance to alkaline products	High solids content	Brand new water-based development