11/21/2023 0 Comments Pee patina brassTypes of Stains and First Step Cleaning Actions The following sections describe the types of stains that you may have to deal with and appropriate household chemicals to use and how to prepare and apply a poultice to remove the stain. Deep-seated or stubborn stains may require using a poultice or calling in a professional. Where is the stain located? Is it near a plant, a food service area, an area where cosmetics are used? What color is it? What is the shape or pattern? What goes on in the area around the stain? Surface stains can often be removed by cleaning with an appropriate cleaning product or household chemical. If you don't know what caused the stain, play detective. Identifying the type of stain on the stone surface is the key to removing it. If the stain remains, refer to the section in this brochure on stain removal. Dry the area thoroughly with a soft cloth. Flush the area with plain water and mild soap and rinse several times. Don't wipe the area, it will spread the spill. I may try the baking soda soak next, but need to find a pan long enough.Blot the spill with a paper towel immediately. Cats and mice - two of the pleasures of living on a farm. The mouse pee is a little more tarry, and neither method is removing it well. I wiped the ties and rails with cloth after application, but did not think about rinsing. I used 91% alcohol on one area, and the vinegar seems to be working better on the cat urine. I have worked on those areas with an old toothbrush. The hardest place to get to is where the lower sides of the rails meet the ties. I did experiment with vinegar rubbed in with a cloth on one of the worst pieces of flex track, and on one of the turnouts. Observations: the corrosion is worse on some pieces than others, and there appears to be some mouse pee splattered in as well, but the track looks salvageable. I'm getting some helpful tips, as well as some much needed humor! Final polish the railhead using a brite boy or fine grit sandpaper. The brass bristles will also polish the rails, and you can enhance this using Comet or other abrasive cleaner. Use the brass brushes Dave Nelson suggested to clean the loose corrosion away. Then remove the track, rinse thoroughly with water and allow to dry. Do not expect to neutralize one acid with another acid). To stop the corrosion, soak it in a baking soda / water solution (Ph of about 8) for a day or two (Do NOT use vinegar, as it, like the cat urine, is acidic, though much more so - Ph about 2.5. So - cat urine is somewhat acidic (Ph 6.3-6.6 usually). In extreme cases, floor supports would wind up looking like those older steel-bodied cars that had been on salted roads for years - you could see right through the thinner sections! Over years of time, the constantly-replenished urine would eat through the (usually) zinc chromate primer and begin to erode away the aluminum itself. While the airlines would do a good job of cleaning the lavs, the urine would remain on the structure underneath. It would seep down through the cracks between the wall and floor and get onto the structural aluminum. Sometimes people "miss" the toilet and some urine gets on the floor. When I was at Boeing, we would have to manufacture replacement structural parts that went under the lavatories for many airliners that were over 10-15 years old. The cats are gone, except for the momma, who has always used the litter box.Īny help or advice is greatly appreciated. My DCC equipment, locos, and rolling stock are all fine. I read in an earlier thread that white vinegar might work, but the search function on this forum does not seem to be what it used to. My question is what is the most effective method of removing this corrosion? My initial thought was a Bright Boy, but I want to avoid scratching the track up if I can help it. Only around 6 of the turnouts were affected, but half of the flex track was. This created a bluish green corrosion on the track. Needless to say, they had found their way into my track box and peed. We had one cat in the basement for mice, then she had kittens and they multiplied. We had a large box of 3 cases of brand new Peco code 83 flex track, and around 50 new turnouts. No permanent layout, just a 8 x 16 test loop with sidings that's been up for way too long. Earlier this year, I started to get back into my HO trains. I'm not looking for pity, but explaining what led up to this situation. I have been in depression since, and have turned to my outdoor hobbies (hiking, canoeing, gardening) to cope. My wife and life partner of almost 29 years was diagnosed with lymphoma, fought like crazy for 2 years, knocked it into remission twice, then passed after receiving a stem cell transplant that was supposed to "cure" it. Before I get too much flak, it has been a rough few years. I've been hesitant to post this, but it's way past time to get some feedback on addressing the problem.
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