{"id":47816,"date":"2022-02-17T13:09:53","date_gmt":"2022-02-17T18:09:53","guid":{"rendered":"https:\/\/stainfu.com\/?p=47816"},"modified":"2022-04-14T12:47:26","modified_gmt":"2022-04-14T16:47:26","slug":"reappearing-stains-on-carpet","status":"publish","type":"post","link":"https:\/\/stainfu.com\/reappearing-stains-on-carpet\/","title":{"rendered":"Reappearing Stains on your Carpet Driving you Crazy?"},"content":{"rendered":"
There are several layers to your indoor installed residential carpeting: the carpet pile, the backing (2 backings, actually \u2013 the primary and the secondary), the padding, and the subfloor. When a spill occurs, gravity pulls the spill down through\u00a0the carpet fibers where it may eventually soak down into the carpet backing, then the padding, and, given enough moisture, even the subfloor.<\/p>\n
On some residential and many commercial carpet installs, the carpet is glued down directly to the concrete subsurface without a pad. Wicking also occurs in these installations from a collection of contaminants in the backing and subfloor.<\/p>\n
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What is happening is that the left-over contamination below the area that is cleaned moves up to the surface as it dries. Carpeting always dries from the bottom up. So if you have residual contamination (such as a big urine spot) in your backing, pad, or subfloor, there\u2019s a good chance that eventually the residue is going to wick its way up to the surface of the carpeting. Wicking often occurs with oil-based spills like coffee, cooking oil, salad dressing, etc., but can also occur if there is a big liquid area such as urine.<\/p>\n
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You\u2019ve spilled your morning coffee and you blot it up the best you can, use a stain cleaner like Stain Fu<\/a>, and dry the area with a fan, only to see the reappearing stains show back up.<\/p>\n Coffee can be tough to remove because of the chemical compound and oils of the coffee bean, the high temperature of the beverage, and added substances to the drink like cream and sugar.<\/p>\n Coffee contains a naturally occurring compound called \u201ctannins\u201d\u00a0<\/em>which acts as a vegetable dye.\u00a0Tannin<\/a> is the compound responsible for that bitter or dry taste in coffee, tea, and red wine. Tannins also have the tendency to wick back up into the top of the carpeting as it dries, even after seemingly successfully removing the coffee spill. So you may clean up the spill several times from the top side only to have the coffee stain reappear. Anytime you re-wet the top side of the carpeting, you expedite the wicking process. As much as you may try to not get the backing wet, it may get damp enough to wick the tannin residue from the bottom to the top.<\/p>\n