r ON THE MARKET FRIDAY, JAN. 28, 2000—5 HOME MAINTENANCE Fighting corrosion inside and outside your home By POPULAR MECHANICS For AP Special Features M etal rusts. Even if it's painted, it can still rust and look lousy. But just because metal rusts, doesn't mean you have to accept it. Fortunately, you can fight back and win the battle against corrosion. Corrosion is not necessarily synonymous with rust. Rust is the brown stuff that forms as a result of corrosion on steel, This article will deal with the simple forms of corrosion found around the house: rusting steel, galvanic corrosion and corrosion on uncoated aluminum. Here's a simplified version of the complex electrochemical process of how rust forms on painted steel. Moisture penetrates through pores in the paint film or through a scratch. The oxygen in the water combines with the iron in the steel, and a minute amount of iron is dissolved, forming a solution. There is an imbalance of electrons between the solution and the surrounding steel, and this leads to a flow of electrons, namely current. As long as the current flows, the steel will deteriorate (corrode) and rust will form. Because rust has more volume than the steel, it expands and helps form a blister under the paint. The blister will cause the paint to fail, exposing the steel to more moisture and accelerating the corrosion process. Here are four steps that can greatly slow the decay of steel. Note that the steps are interrelated and that paint can play a role in each step. 1. Keep it clean. 2. Keep it dry. 3. Insulate it. 4. Galvanize it. Step 1. Dirt holds moisture, and we've seen the effect moisture has on steel. Step 2. No moisture, no rust. This puts a premium on repairing blistered paint and using the right paint for the job. Step 3. Not only does paint keep the metal dry, almost all paints act as insulators. By stopping current flow, paint prevents corrosion. Step 4. Galvanized steel is coated with zinc. The steel is dipped in molten zinc (known as hot dipped), or it is plated by being immersed in an electrochemical • bath. Homeowners can't be galvanizers, of course, but they can use galvanized hardware. They can also use a primer with 84 percent zinc by weight. Zinc is a special material, as far as steel is concerned. In corrosive conditions, it loses electrons at a faster rate than steel does. If you cover the steel with zinc, the zinc will corrode away but the steel remains unscathed until the zinc is gone. A related means of protection is to position a zinc bar - called an anode - near the steel. This is the method used to protect steel swimming pools. Likewise, magnesium anodes are used to protect hot water tanks. . You might wonder why hot water tanks don't use zinc anodes. The answer: at 120 F and above, zinc loses its effectiveness as an anode. In fact, it completely reverses its effectiveness causing the steel to become the anode. Early galvanized hot water tanks, for instance, rotted away quickly. Once manufacturers discovered the problem, they switched to magnesium anodes. *•«*"* fr ' •Ax* / "*'"*>'* &" >%; Coldwell Banker Mendo Realty, Inc URIAH 444 N. STATE STREET 462*5400 www.coldwellbanker.com WILLTTS 1460 S. MAIN STREET 459-5389 PROPERTY OF THE WEEK OFFICE EXCLUSIVE 100-Acre vineyard site less than 2 hours from the Golden Gate Bridge. Currently producing pear orchard and bordering the Russian River, Many improvements on land including labor housing, all equipment stays. Terms $3,500,000. Call for information if interested. A LOT FOR YOUR MONEY 3 bedroom, 1 bath home on four tenths of an acre, two- story outbuilding for storage shed, 2 waterfalls with ponds, landscaping galore, hot tub, etc., etc. Asking $169,600 A HOME FOR NEW BEGINNINGS Hopland area, 3 bedroom, 2 bath, large lot. Great for the first time buyer. Asking $148,700, call for showings! COMMERCIAL INVESTMENT PROPERTY Approximately 2.5 acres at the corner ol Slate St. and Orr Springs Rd. Potential is unlimited. Currently being used as a car lot, salvage yard" radiator shop and gun shop. 3 bedroom, 1 bath mobile on back ol property. Sold as a whole or partial deal with possible lease back. $495,500 LOT'S OF WHITE ' You gel a happy feeling when you enter thli charming 2 bedroom, 1 bath mobile home In quite, centrally located Senior Park. Th« work has been done, new paint, slovetop, hood and sink. Great comer lot location with fenced back yard. Only $32,000 Matchi HAPPINESS 18 Property and og Wgrit be the right people for this 3 bedroom, 2- bath ranch style home with oversized garage plus storeroom. Central heat and air plus llreplape. Asking INVESTMENT OPPORTUNITY 6 bedroom, 2.5 bath home currently operated as a care home. Nice residential area of homes. Reduced drastically to$176.000 WESTSIDE BUILDING LOT On private cul-de-sac. All utilities available and ready for your dream home. Close to schools and shopping. Asking $75,000. WOODED BUILDING LOT Approximately 1 acre wooded lot along West Standley Street. Alt utilities available. Asking $49,900. Joe Blake,* ,.498*8718 Betty Bullwd. ,,,,,,,u,,4«*6865 Kern 1 Viu 1 j,V,,V,,, Ai<« eima Hart ,,,,468*8214 Michael Jacob* 468*1900 Jaime Garcia «,,468<.5961..MM John Laxaro ............. 463*3915 Bob Itvy „.,.«.,.«.». Jetty McCain ........... 468*3889 ,',',MWlf BeV-'.-"^«..V,163*713.'
What members have found on this page
Get access to Newspapers.com
- The largest online newspaper archive
- 11,200+ newspapers from the 1700s–2000s
- Millions of additional pages added every month