Post by Moderator on Jan 3, 2008 23:52:49 GMT -5
How to prevent and fight rust
Prevent rust
If you live where it snows alot, chances are you've seen more than your share of rusted-out spots. (frame, exhaust, etc.) Rust isn't just ugly, it also reduces your atv's structural strength and can weaken its ability to protect you against small accident. Hence the reason the prevent rust.
You can prevent rust using WD40. Making sure parts on the bike are a bit greasy prevents them agains salt and rust. You can spray some WD40 on the frame, engine, shocks, a-arms, swing arm, exhaust and radiator. But never spray on the brakediscs!
Finasol is also a good product that protects. It is used on engines and rubber hoses giving back that brand new look. Put it on, let it set and wash it off. Like new!
AUTUMN TIP:
Be sure to give the rustsensitive components on your bike a rustpreventing coat of WD40, before the first snowfall.
WINTER TIPS:
Never leave atv uncleaned with snow hanging on. Brush it off.
Never clean off snow with water if it's freezing.
As soon as temp is above 0° don't forget to clean underneith the atv too, by tilting it up, letting it lean on its grabbar.
If the temperature stays up, wash the atv weekly.
Park outside. A warm garage melts the snow and ice stuck to your atv and allows the embedded salt to start its destructive work on the belly of the frame.
SPRING TIP:
When the snow is gone for good, check your atv for signs of rust. Remember, once rust starts, it only gets worse, so repair any rust spots with allittle sanding and a coat (or 2) of paint.
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Fight rust
Rust Removal:
The surface must be cleaned of all loose and flaking rust and paint.
Sandblasting:
Sandblasting is the easiest, quickest way to remove old paint and rust from metal. Compressed air at high pressure is used to blow fine sand or other abrasive material through a hardened spray nozzle and quickly "blasts" away whatever the blast material hits.
Wire Brushing, Sanding:
Use a hand brush or a wire wheel brush and drill. Normally a few quick passes will remove the loose material. If the surface is to be finished in a smooth painted finish then the wire brushing should be followed up with a complete sanding until it is smooth and free of defects. Normally a rough sanding with 80 grit sandpaper followed by a smooth sanding with 120 grit does an adequate job. Holes, cracks, etc. should be filled first with an auto body filler material if you are going for a top quality finish.
Chemical Removal:
Acid or strong alkaline materials which dissolve rust. These products work well but must be used with extreme caution due to the chemical nature of the products.
Rust Conversion:
Organic Rust Converters. These products convert rust to harmless chemical compounds and deposit on the surface a protective film that protects against rust.
Pros...No serious wire brushing or sanding is required, these products actually need a rusty surface in order for them to work properly. Water base, easy to apply, non-flammable. Rust Converters are ideal for ornamental iron and other areas where wire brushing and sanding is difficult or the surface is not easily accessible. They not only convert existing rust to an inert organic surface but also deposit a rust inhibiting polymer on the surface which does not require finish paints or coatings, this is the ideal treatment for ease of use with minimum surface prep required.
Cons...The downside to rust converters is they are thicker than normal coatings and tend to leave a high build, rather "ropey" looking finish, ( looks like paint would with a lot of brush marks). This would not be a problem on wrought iron or any other surface where a super smooth finish is desired.
Cleaning:
Next the surface must be cleaned and degreased, paints and coatings do not bond well to dirty or greasy surfaces. A washing with a strong detergent followed by a through rinsing is required. The light "flash rust" that appears after washing can be removed with a cloth dampened with paint thinner or one of the commercial "surface prep" materials available.
At this point you can coat the metal with a simple oil or grease like WD40, a good application for something like gardening or hand tools.
Painted items should be primed with a rust inhibiting primer and finished with two coats of a quality exterior enamel. Spraying is quite acceptable but I strongly recommend that the primer be brushed or sprayed and worked into the surface with a brush while still wet. Spray painting alone will not get the paint down into tiny pinholes and crevices but will only "bridge" these areas resulting in premature failure as the moisture and oxygen will attack the exposed steel.
Modern paint chemistry now allows water base paints to be produced which have fantastic rust inhibiting properties and I highly recommend them over solvent base. Besides being low odor and easy to cleanup, an added advantage to water base paints is their ability to melt in with any trapped moisture which may not be visible to the naked eye. These coatings will force the moisture up to the surface and replace it with rust proof chemicals that seal the surface off. You will see rust looking spots in your dried primer but do not be concerned, most can be wiped off with a cloth as it is nothing more than rusty moisture that has been forced to the surface.
Summary:
Regardless of which finish system you use, preparation is a must!
For painted finishes, prep, apply rust converter, or metal primer and two coats of rust inhibiting finish enamel.
--------------------------------------------------------------------------------
Enjoy the summer, and get ready to do battle and fight rust again next year!
Prevent rust
If you live where it snows alot, chances are you've seen more than your share of rusted-out spots. (frame, exhaust, etc.) Rust isn't just ugly, it also reduces your atv's structural strength and can weaken its ability to protect you against small accident. Hence the reason the prevent rust.
You can prevent rust using WD40. Making sure parts on the bike are a bit greasy prevents them agains salt and rust. You can spray some WD40 on the frame, engine, shocks, a-arms, swing arm, exhaust and radiator. But never spray on the brakediscs!
Finasol is also a good product that protects. It is used on engines and rubber hoses giving back that brand new look. Put it on, let it set and wash it off. Like new!
AUTUMN TIP:
Be sure to give the rustsensitive components on your bike a rustpreventing coat of WD40, before the first snowfall.
WINTER TIPS:
Never leave atv uncleaned with snow hanging on. Brush it off.
Never clean off snow with water if it's freezing.
As soon as temp is above 0° don't forget to clean underneith the atv too, by tilting it up, letting it lean on its grabbar.
If the temperature stays up, wash the atv weekly.
Park outside. A warm garage melts the snow and ice stuck to your atv and allows the embedded salt to start its destructive work on the belly of the frame.
SPRING TIP:
When the snow is gone for good, check your atv for signs of rust. Remember, once rust starts, it only gets worse, so repair any rust spots with allittle sanding and a coat (or 2) of paint.
--------------------------------------------------------------------------------
Fight rust
Rust Removal:
The surface must be cleaned of all loose and flaking rust and paint.
Sandblasting:
Sandblasting is the easiest, quickest way to remove old paint and rust from metal. Compressed air at high pressure is used to blow fine sand or other abrasive material through a hardened spray nozzle and quickly "blasts" away whatever the blast material hits.
Wire Brushing, Sanding:
Use a hand brush or a wire wheel brush and drill. Normally a few quick passes will remove the loose material. If the surface is to be finished in a smooth painted finish then the wire brushing should be followed up with a complete sanding until it is smooth and free of defects. Normally a rough sanding with 80 grit sandpaper followed by a smooth sanding with 120 grit does an adequate job. Holes, cracks, etc. should be filled first with an auto body filler material if you are going for a top quality finish.
Chemical Removal:
Acid or strong alkaline materials which dissolve rust. These products work well but must be used with extreme caution due to the chemical nature of the products.
Rust Conversion:
Organic Rust Converters. These products convert rust to harmless chemical compounds and deposit on the surface a protective film that protects against rust.
Pros...No serious wire brushing or sanding is required, these products actually need a rusty surface in order for them to work properly. Water base, easy to apply, non-flammable. Rust Converters are ideal for ornamental iron and other areas where wire brushing and sanding is difficult or the surface is not easily accessible. They not only convert existing rust to an inert organic surface but also deposit a rust inhibiting polymer on the surface which does not require finish paints or coatings, this is the ideal treatment for ease of use with minimum surface prep required.
Cons...The downside to rust converters is they are thicker than normal coatings and tend to leave a high build, rather "ropey" looking finish, ( looks like paint would with a lot of brush marks). This would not be a problem on wrought iron or any other surface where a super smooth finish is desired.
Cleaning:
Next the surface must be cleaned and degreased, paints and coatings do not bond well to dirty or greasy surfaces. A washing with a strong detergent followed by a through rinsing is required. The light "flash rust" that appears after washing can be removed with a cloth dampened with paint thinner or one of the commercial "surface prep" materials available.
At this point you can coat the metal with a simple oil or grease like WD40, a good application for something like gardening or hand tools.
Painted items should be primed with a rust inhibiting primer and finished with two coats of a quality exterior enamel. Spraying is quite acceptable but I strongly recommend that the primer be brushed or sprayed and worked into the surface with a brush while still wet. Spray painting alone will not get the paint down into tiny pinholes and crevices but will only "bridge" these areas resulting in premature failure as the moisture and oxygen will attack the exposed steel.
Modern paint chemistry now allows water base paints to be produced which have fantastic rust inhibiting properties and I highly recommend them over solvent base. Besides being low odor and easy to cleanup, an added advantage to water base paints is their ability to melt in with any trapped moisture which may not be visible to the naked eye. These coatings will force the moisture up to the surface and replace it with rust proof chemicals that seal the surface off. You will see rust looking spots in your dried primer but do not be concerned, most can be wiped off with a cloth as it is nothing more than rusty moisture that has been forced to the surface.
Summary:
Regardless of which finish system you use, preparation is a must!
For painted finishes, prep, apply rust converter, or metal primer and two coats of rust inhibiting finish enamel.
--------------------------------------------------------------------------------
Enjoy the summer, and get ready to do battle and fight rust again next year!