ground coat การใช้

• On sheet steel, a ground coat layer is applied to create adhesion.
• White and coloured second " cover " coats of enamel are applied over the fired ground coat.
• The only surface preparation required for modern ground coats is degreasing of the steel with a mildly alkaline solution.
• Self-cleaning ovens have a pyrolytic ground coat, which reduces foodstuffs to ash with exposure to temperature around 500 癈 ( 932 癋 ).
• The frit in the ground coat contains smelted-in cobalt and / or nickel oxide as well as other transition metal oxides to catalyse the enamel-steel bonding reactions.
• For electrostatic enamels, the coloured enamel powder can be applied directly over a thin unfired ground coat " base coat " layer that is co-fired with the cover coat in a very efficient two-coat / one-fire process.