How cleaning stuff works
Stainless Steel - Cleaning, Care and Maintenance 0
The following courtesy of AZO Material.
The attractive and hygienic surface appearance of stainless steel products cannot be regarded as completely maintenance-free. All grades and finishes of stainless steel may in fact stain, discolor or attain an adhering layer of grime in normal service. To achieve maximum corrosion resistance the surface of the stainless steel must be kept clean.
Surface contamination and the formation of deposits are critical factors that may lead to drastically reduced life. These contaminants may be minute particles of iron or rust from other non-stainless steels used in nearby construction and not subsequently removed. Industrial, commercial and even domestic and naturally occurring atmospheric conditions can result in deposits that can be quite corrosive. An example is salt deposits from marine conditions.
Working environments can also create more aggressive conditions, such as the warm, high humidity atmosphere above indoor swimming pools. These environments can increase the speed of corrosion and therefore require more frequent maintenance. Modern processes use many cleaners, sterilizers, and bleaches for hygienic purposes. All these proprietary solutions, when used in accordance with their makers' instructions are safe, but if used incorrectly (e.g. warm or concentrated) can cause discoloration and corrosion on the surface of stainless steels. Strong acid solutions (e.g. hydrochloric acid or "spirits of salts") are sometimes used to clean masonry and tiling of buildings but they should never be permitted to come into contact with metals, including stainless steel. If this should happen the acid solution must be removed immediately by copious water flushing.
Cleaning of new fabrications should present no special problems, although more attention may be required if the installation period has been prolonged. Where surface contamination is suspected, immediate attention to cleaning will promote a trouble-free service life. Food handling, pharmaceutical, and aerospace applications may require extremely high levels of cleanliness.
Advice is often sought concerning the frequency of cleaning of products made of stainless steel, and the answer is quite simply "clean the metal when it is dirty in order to restore its original appearance". This may vary from once to four times a year for external applications or it maybe once a day for an item in hygienic or aggressive situations. In many applications, the cleaning frequency is after each use.
Stainless steel can be contaminated by pick-up of carbon steel ("free iron") and this is likely to lead to rapid localized corrosion. The ideal is to have workshops and machinery dedicated to only stainless steelwork, but in a workshop also processing other steels avoid pick-up from:
Stainless steel is easy to clean. Washing with soap or a mild detergent (Dishwash Super 12 or Handy K-10) and warm water followed by a clean water rinse is usually quite adequate for domestic and architectural equipment. An enhanced appearance will be achieved if the cleaned surface is finally wiped dry. Specific methods of cleaning areas in Table 1.
Sections below give passivation treatments for removal of free iron and other contamination resulting from the handling, fabrication, or exposure to contaminated atmospheres, and pickling treatments for removal of high-temperature scale from heat treatment or welding operations.
"Pickling Paste" is a commercial product of hydrofluoric and nitric acids in a thickener - this is useful for pickling welds and spot contamination, even on vertical and overhanging surfaces.
Table1. Methods of Cleaning Stainless Steel
- Matthew Smith
How to use Pool Acid to correct pH in swimming pools 1
The pH level of your pool affects every other chemical balance in pool water. pH is a measure of the level of hydrogen ions or acidity of the pool water. Measured on a logarithmic scale, a pH of 0 indicates extremely acidic conditions, and a pH of 14 indicates extremely basic conditions. A pH of 7 is neutral.
Always acid resistant gloves and eye protection when handling pool acid.
- Matthew Smith
How to maintain your granite counter top or floor. 0If you’ve never had granite countertops, then you may be used to simply cleaning your counters with whatever cleanser you happen to have on hand. Maybe you prefer to use natural products like vinegar and baking soda, or maybe you like products made by Mr. Muscle. Regardless of what you’re used to using, however, when it comes to granite, not every product out there is safe to use on your stone
- Matthew Smith
Detergent Residue -The driver for "Green" 0
Another argument to support going "green".
What do your cleaning products leave behind?
Do any of the following apply to you?
- Have you ever cleaned a spot which mysteriously reappears a few days or weeks later?
- Do reappearing spots turn black and grow l
Stain Remover Characteristics 0
Stain Remover Characteristics
Selecting a stain remover is like a job interview. There are many applicants to choose from. They all seem qualified according to the label on the bottle to fulfill the job description. It can't be known if the correct solution was chosen until you test its ability to remove a carpet stain.
A true "all in one" stain removal product does not exist.
Carpet Fiber-which one for your lifestyle 0
What type of carpet fiber is best suited for your lifestyle?
The various types of carpeting fibers used will for the most part determine a carpet or rug's characteristics.
A fiber can be categorized as either: