Phosphoric acid as metal pretreatment
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#Ospho is totally neutralized by reaction with both the rust particles and the steel underneath. | #Ospho is totally neutralized by reaction with both the rust particles and the steel underneath. | ||
#Because Ospho is water-based, the water can hide in nooks and crannies, causing adhesion failure of primer | #Because Ospho is water-based, the water can hide in nooks and crannies, causing adhesion failure of primer | ||
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| + | For details on Ospho use, see [[Rust removal with Ospho]]. | ||
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| + | ===Resources=== | ||
| + | *[http://www.skybryte.com/OsphoMSDS.html Ospho MSDS] | ||
| + | *[http://www.skybryte.com/OsphoTec.html Ospho Technical Data Sheet] | ||
====Application tips==== | ====Application tips==== | ||
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*Always make sure metal is dry before using ospho or priming. | *Always make sure metal is dry before using ospho or priming. | ||
*Sand or scuff before priming then use a wax and grease remover to clean. | *Sand or scuff before priming then use a wax and grease remover to clean. | ||
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| + | ===PPG DX579=== | ||
| + | PPG DX579 contains a lower concentration of phosphoric acid than Ospho. | ||
==Naval jelly== | ==Naval jelly== | ||
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*[http://www.brown.edu/Departments/Visual_Art/documents/NavalJelly.pdf Naval Jelly MSDS] | *[http://www.brown.edu/Departments/Visual_Art/documents/NavalJelly.pdf Naval Jelly MSDS] | ||
*[http://www.permatex.com/documents/tds/Automotive/81756.pdf Naval Jelly Technical Data Sheet] | *[http://www.permatex.com/documents/tds/Automotive/81756.pdf Naval Jelly Technical Data Sheet] | ||
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==Reasons for using phosphoric acid== | ==Reasons for using phosphoric acid== | ||
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==Published positions from primer and paint manufacturers== | ==Published positions from primer and paint manufacturers== | ||
| + | ===House of Kolor=== | ||
| + | *[http://www.houseofkolor.com/PDF/TechData/English/KP21.pdf House of Kolor Kwikure Epoxy Primer Surfacer tech sheet]: | ||
| + | <blockquote> | ||
| + | ''"'''NOTE:''' Do not use any acid base products such as self etching primer, etc. under the KP2CF primer. This will almost certainly cause an adhesion problem.'' | ||
| + | <br> | ||
| + | '''''NOTE:''' If you find it necessary to use a metal conditioner to remove rust, etc., be sure to thoroughly clean and neutralize the treated area following the conditioner manufacturers recommendations, then using our KC20 post sanding cleaner with a maroon scuff pad to insure all acid residue has been removed before priming. If not, this will almost certainly cause an adhesion problem."'' | ||
| + | </blockquote> | ||
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| + | House of Kolor is a division of Valspar Corporation. | ||
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===Southern Polyurethanes, Inc.=== | ===Southern Polyurethanes, Inc.=== | ||
| − | *[http://www.southernpolyurethanes.com/tech%20sheets%20new/epOXY%202006.pdf Southern Polyurethanes]: | + | *[http://www.southernpolyurethanes.com/tech%20sheets%20new/epOXY%202006.pdf Southern Polyurethanes epoxy primer tech sheet]: |
<blockquote> | <blockquote> | ||
''"NEVER use SPI Epoxy over a Soda Blasted vehicle, Acid Etch/Wash Primer, Rust Converter or other Metal Treatments. NEVER!"'' | ''"NEVER use SPI Epoxy over a Soda Blasted vehicle, Acid Etch/Wash Primer, Rust Converter or other Metal Treatments. NEVER!"'' | ||
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==Use of phosphoric acid in an industrial setting== | ==Use of phosphoric acid in an industrial setting== | ||
''this section needs development'' | ''this section needs development'' | ||
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| + | ==Related articles== | ||
| + | *[[Rust removal with Ospho]] | ||
| + | *[[Rust]] | ||
==References== | ==References== | ||
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*http://www.skybryte.com/index.html | *http://www.skybryte.com/index.html | ||
*http://www.ospho.com/data.htm | *http://www.ospho.com/data.htm | ||
| + | *http://www.hotrodders.com/forum/compatability-spi-ospho-74054.html | ||
| + | *http://www.spiuserforum.com/showthread.php?8-What-every-new-painter-must-read! | ||
[[Category:Body and exterior]] | [[Category:Body and exterior]] | ||
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