Rust removal with Ospho
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==Protect metal from rusting== | ==Protect metal from rusting== | ||
| − | When Ospho dries, it leaves a protective primer coat. | + | If you strip an entire vehicle at once, but are going to be working on one panel at a time, you can Ospho the entire vehicle to prevent it from rusting. When Ospho dries, it leaves a protective primer coat that will prevent rust for months. |
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| + | If there's excess Ospho on the steel, you may notice some streaking. To handle this, you can reapply the Ospho, and wipe it off smoothly. | ||
''vid goes here: http://www.streetfire.net/video/rust-removalospho-2_743486.htm'' | ''vid goes here: http://www.streetfire.net/video/rust-removalospho-2_743486.htm'' | ||
==Prepping metal for Ospho== | ==Prepping metal for Ospho== | ||
| + | Sand with 80 grit, then clean with wax and grease remover. | ||
''vid goes here: http://www.streetfire.net/video/prepping-metal-for-oshpo_1028571.htm'' | ''vid goes here: http://www.streetfire.net/video/prepping-metal-for-oshpo_1028571.htm'' | ||
==Prepping Ospho for primer== | ==Prepping Ospho for primer== | ||
| + | On exposed surfaces, sand the coating to give the epoxy something to bite into. If there was any streaking, you can sand a little more on those spots. | ||
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| + | Sand with 180 on a DA, when wipe off the grayish powder with wax and grease remover, then prime. | ||
''vid goes here: http://www.streetfire.net/video/prepping-ospho-for-primer_1411477.htm'' | ''vid goes here: http://www.streetfire.net/video/prepping-ospho-for-primer_1411477.htm'' | ||
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| + | ==Criticism== | ||
| + | The use of acid metal pretreatments is controversial in hotrodding. Because incomplete removal of the acid film may cause topcoat failure, its use is explicitly cautioned against by some epoxy primer manufacturers. | ||
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| + | For more details, see: [[Phosphoric acid as metal pretreatment]]. | ||
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==Related articles== | ==Related articles== | ||
*[[Phosphoric acid as metal pretreatment]] | *[[Phosphoric acid as metal pretreatment]] | ||
*[[Rust]] | *[[Rust]] | ||
| + | *[[Pitted rust]] | ||
| + | *[[Epoxy primer]] | ||
| + | *[[Stripping paint]] | ||
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==References== | ==References== | ||
*http://www.hotrodders.com/forum/ospho-solution-rust-removal-175465.html | *http://www.hotrodders.com/forum/ospho-solution-rust-removal-175465.html | ||
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