Rust
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Need more background here. Plus info on why newer cars don't rust nearly as badly, and on salt/winter driving conditions. Review this article: http://www.metalwebnews.com/howto/rust/rust.html . | Need more background here. Plus info on why newer cars don't rust nearly as badly, and on salt/winter driving conditions. Review this article: http://www.metalwebnews.com/howto/rust/rust.html . | ||
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=How to remove rust= | =How to remove rust= | ||
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*For cleaning in seams, a spot blaster is recommended. | *For cleaning in seams, a spot blaster is recommended. | ||
* Take precautions with proper safety equipment (list it here) | * Take precautions with proper safety equipment (list it here) | ||
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Need more info on the numerous types of media, which ones are recommended for what, cost, availability, etc. | Need more info on the numerous types of media, which ones are recommended for what, cost, availability, etc. | ||
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==Chemical removal of rust== | ==Chemical removal of rust== | ||
chemical removal -- spray/paint on, plus soaking | chemical removal -- spray/paint on, plus soaking | ||
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list applicable chems here | list applicable chems here | ||
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| + | ===Getting your entire body acid dipped=== | ||
| + | About $1000 - $1500? From Redi-Strip (technically not an acid? research this), a national chain. | ||
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| + | What does redi-strip use to strip vehicles? Can a hobbyist acquire and use the same stuff? | ||
===Rust encapsulation=== | ===Rust encapsulation=== | ||
| − | + | Hotrodders typically divide into 3 camps over the use of these products: | |
| + | #won't use them at all | ||
| + | #will use them, but not on body panels | ||
| + | #will use them on anything | ||
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| + | Explain the perspectives on the use of rust encapsulators. | ||
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| + | POR-15, Zero-Rust, Eastwood Rust Encapsulator | ||
| + | These might be the top 3? | ||
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| + | Len Stuart of Autobodystore.com recommends Picklex-20 followed by Zero Rust: http://www.autobodystore.com/new_page_1.htm | ||
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| + | from Eastwood: [http://www.eastwoodco.com/jump.jsp?itemID=852&itemType=CATEGORY&iMainCat=688 Rust encapsulator v. POR-15] | ||
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| + | Topcoat these products? Some may have a UV-resistant clearcoat to go with them -- research it. | ||
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| + | Some professionals have expressed the concern that it's best to use rust encapsulator products "alone", and not within a professional coating product line. Good thread on this is here: http://hotrodders.com/forum/zero-rust-primer-98104.html . | ||
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| + | Need to go through these three companies rust product lines, and analyze all the available products. | ||
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| + | When selecting a rust encapsulator, need to consider: | ||
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| + | Product compatibility? | ||
| + | What can it be thinned with? How much? | ||
| + | How long to dry/cure? | ||
| + | UV protection? | ||
| + | Colors? | ||
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==Removing rust from body panels== | ==Removing rust from body panels== | ||
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*'''If you're dealing with a complete vehicle body with rust, have it commercially dipped.''' | *'''If you're dealing with a complete vehicle body with rust, have it commercially dipped.''' | ||
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| + | ===Surface rust removal technique=== | ||
| + | Need 80-180 grit sandpaper, DA sander (or sand by hand), steel wool, naval jelly, squirt bottle w/warm soapy water, and paper towels. | ||
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| + | #Get all heavy rust off with DA sander and 80-180 grit paper. | ||
| + | #Working in 1-2 square feet at a time, wearing rubber gloves, scrub with naval jelly and steel wool. Don't let the naval jelly dry, keep it wet, squirt with bottle. | ||
| + | #Rinse and re-apply naval jelly if necessary, to get to clean shiny metal. | ||
| + | #When finished with an area, wipe off excess naval jelly with paper towel, squirt on warm soapy water, and dry thoroughly. Then wipe down with lacquer thinner. Can then sand with 180 grit. After that, you can just use wax and grease remover, and then paint with epoxy primer. | ||
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| + | ===Quick fix for exposed areas (dents, etc.)=== | ||
| + | If a dent causes an area of bare metal to be exposed. To "hold" it so it won't rust until a paint job is ready to be done: gently bump out the dent, sand, rattle can primer, rattle can sealer. | ||
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| + | ===Body filler to bare metal?=== | ||
| + | It's a common procedure to apply body filler to bare metal, but it's not the "best" way to do it. User "badbob" on the HRBB says: "fillers get applied over bare metal every day and it's an acceptable recomended procedure, but applying a quality epoxy primer first adds corrosion resistance, durability, adhesion, and filler flexability. It just takes more time. Time that most people aren't willing to spend." | ||
===Accessing rust between interior panels=== | ===Accessing rust between interior panels=== | ||
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Turn panels around to slosh rust remover around. Blow compressed air inside the panel. | Turn panels around to slosh rust remover around. Blow compressed air inside the panel. | ||
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| + | Cut hole in panel? Spray rust killer with garden sprayer? | ||
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| + | A mirror can be used to check areas for rust. | ||
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| + | Don't spray expanding foam. It absorbs water, and will cause more rust. It can also expand and cause the panels to push out. | ||
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| − | + | ===Weld-through primer=== | |
| + | A zinc-rich coating that conducts current from a welder. It can provide protection on lap welds and inner weld seams. As a general rule, weld-through primer is applied to the mating areas when welding body panels. List a few commercially available weld-through primers here. 3M, U-Pol, etc. It doesn't burn off when welding. | ||
===What exactly is e-coating?=== | ===What exactly is e-coating?=== | ||
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==Miscellaneous== | ==Miscellaneous== | ||
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===Cleaning light surface rust off crankshaft=== | ===Cleaning light surface rust off crankshaft=== | ||
Have a machine shop do it, or: | Have a machine shop do it, or: | ||
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Wire wheel? Brake cleaner? Kerosene? Heat gun? EZ-Off oven cleaner? Mineral spirits? Freeze with dry ice, then chisel out? Wallpaper steamer? | Wire wheel? Brake cleaner? Kerosene? Heat gun? EZ-Off oven cleaner? Mineral spirits? Freeze with dry ice, then chisel out? Wallpaper steamer? | ||
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===The fiberglass resin patch trick=== | ===The fiberglass resin patch trick=== | ||
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===Rustoleum=== | ===Rustoleum=== | ||
Is generally considered to be a poor choice for most automotive applications. Good for cheap shop shelving, etc. | Is generally considered to be a poor choice for most automotive applications. Good for cheap shop shelving, etc. | ||
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===Underside rust removal=== | ===Underside rust removal=== | ||
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Another option is to keep the car low to the ground, and, with plastic sheeting and duct tape, seal the area between car and floor. Leave the rear area of the plastic "tent" open for access. At the front of the "tent", affix a shop vac hose (exhaust). Blast. | Another option is to keep the car low to the ground, and, with plastic sheeting and duct tape, seal the area between car and floor. Leave the rear area of the plastic "tent" open for access. At the front of the "tent", affix a shop vac hose (exhaust). Blast. | ||
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===Examining rust=== | ===Examining rust=== | ||
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