Phosphoric acid as metal pretreatment
(→Brands of phosphoric acid-based metal pretreatments used for automotive work) |
(→Reasons for not using phosphoric acid) |
||
| Line 24: | Line 24: | ||
==Reasons for not using phosphoric acid== | ==Reasons for not using phosphoric acid== | ||
*Metal pretreatment manufacturers are economically incentivized to recommend their products. A better point of view might be obtained from the manufacturer of the product that is destined to go on top of the pretreatment. | *Metal pretreatment manufacturers are economically incentivized to recommend their products. A better point of view might be obtained from the manufacturer of the product that is destined to go on top of the pretreatment. | ||
| − | |||
*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. | ||
| Line 32: | Line 31: | ||
*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 are thus not recommended for beginners. | *Amateurs and [[First paint job|first-time painters]] are more likely to make errors. Phosphoric acid pretreatments must be used meticulously, and are thus not recommended for beginners. | ||
| + | *It has to be used perfectly. This may work in a controlled environment (industrial, manufacturing, etc.), but not for a home hobbyist. | ||
==Specific paint and primer failures caused by phosphoric acid pretreatments== | ==Specific paint and primer failures caused by phosphoric acid pretreatments== | ||
Your Privacy Choices