Phosphoric acid as metal pretreatment
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==Reasons for not using phosphoric acid== | ==Reasons for not using phosphoric acid== | ||
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*Even a very low failure rate is economically disadvantageous, especially in light of the value of a professional paint job, and the labor required to fix a failure. | *Even a very low failure rate is economically disadvantageous, especially in light of the value of a professional paint job, and the labor required to fix a failure. | ||
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*A manufacturer's tech sheet may specifically advise against using an acid pretreatment. Always follow the tech sheets for the products you are using. | *A manufacturer's tech sheet may specifically advise against using an acid pretreatment. Always follow the tech sheets for the products you are using. | ||
− | *Amateurs and [[First paint job|first-time painters]] are more likely to make errors. Phosphoric acid pretreatments must be used meticulously, and | + | |
− | + | *Amateurs and [[First paint job|first-time painters]] are more likely to make errors. Phosphoric acid pretreatments must be used meticulously, and may be beneficial in an industrial or manufacturing environment. However, they can be catastrophic for beginners. | |
==Specific paint and primer failures caused by phosphoric acid pretreatments== | ==Specific paint and primer failures caused by phosphoric acid pretreatments== |