Rust removal with Ospho
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| − | + | [[Image:Wheel_well_post_ospho.jpg|thumb|350px|A rusty wheelwell after applying Ospho]] | |
==Summary== | ==Summary== | ||
| − | Ospho has some advantages over other rust removal methods | + | Ospho is a phosphoric acid-based [[rust]] removal and preventative that has some advantages over other rust removal methods: it's easy, inexpensive, and not particularly messy. This article demonstrates how to use Ospho to remove light surface rust and heavy rust, and how to use Ospho to prevent fresh steel from rusting. |
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==Tools and supplies== | ==Tools and supplies== | ||
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*Paper shop towels. | *Paper shop towels. | ||
| − | + | [[Image:Ospho_supplies.jpg|thumb|left|350px|Supplies for applying Ospho: red scuff pads, rubber gloves, paper shop towels, and a quart of Ospho.]] | |
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==Removing surface rust== | ==Removing surface rust== | ||
Use a pump spray bottle to apply Ospho liberally. Scrub it in with the scrub pads, then wipe off the excess with the towels, and let it sit 24 hours. If you want to clean it some more, sand it with 80 grit, and reapply. | Use a pump spray bottle to apply Ospho liberally. Scrub it in with the scrub pads, then wipe off the excess with the towels, and let it sit 24 hours. If you want to clean it some more, sand it with 80 grit, and reapply. | ||
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==Protect metal from rusting== | ==Protect metal from rusting== | ||
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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. | 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. | ||
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==Prepping metal for Ospho== | ==Prepping metal for Ospho== | ||
Sand with 80 grit, then clean with wax and grease remover. | Sand with 80 grit, then clean with wax and grease remover. | ||
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==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. | + | On exposed surfaces, sand the coating to give the [[epoxy primer]] something to bite into. If there was any streaking, you can sand a little more on those spots. |
Sand with 180 on a DA, when wipe off the grayish powder with wax and grease remover, then prime. | Sand with 180 on a DA, when wipe off the grayish powder with wax and grease remover, then prime. | ||
| − | + | ===Videos=== | |
| + | * [http://www.streetfire.net/video/using-ospho-to-clean-and-etch-unrusted-metal_2052564.htm Using Ospho to clean/etch unrusted metal] | ||
| + | * [http://www.streetfire.net/video/using-ospho-on-surface-rust-pt1_2050901.htm Removing surface rust with Ospho, part 1] | ||
| + | * [http://www.streetfire.net/video/using-ospho-on-surface-rust-pt-2_2050902.htm Removing surface rust with Ospho, part 2] | ||
| + | * [http://www.streetfire.net/video/prepping-ospho-for-epoxy-primer_2052572.htm Prepping Ospho for epoxy primer] | ||
==Criticism== | ==Criticism== | ||
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==References== | ==References== | ||
*Adapted from a Hotrodders Bulletin Board [http://www.hotrodders.com/forum/ospho-solution-rust-removal-175465.html forum post] by deadbodyman, with permission. | *Adapted from a Hotrodders Bulletin Board [http://www.hotrodders.com/forum/ospho-solution-rust-removal-175465.html forum post] by deadbodyman, with permission. | ||
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| + | [[Category:Body and exterior]] | ||
| + | [[Category:General hotrodding]] | ||
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