Patio and Outdoor Furniture
A Guide to Proper Cleaning and Maintenance Procedures for Patio and Outdoor Furniture
By Joe Griffin, Manufacturer’s Representative
Published in CondoManagement Magazine
There is a great diversity of opinions about how patio furniture should be cleaned and maintained. Following are some tips and observations on outdoor furniture care from a patio furniture sales and repair professional. With proper maintenance, residential owners and community associations can prolong the life of their vinyl strapped outdoor furniture. Application of these care and maintenance tips can also reduce repair and replacement costs.
Vinyl has a finish on it
New vinyl and paint both have a finish on them, comparable to the clear coat on a new car. Pool chlorine, bleach, solvents, and many commercial cleaning solutions will damage the finish. This damage accelerates staining, fading and ultimate failure of the vinyl and paint. Cleaning with such chemicals will cut the life expectancy of vinyl and paint by about one half. The average life of vinyl in commercial use is about two years, and paint lasts four to five years. Proper cleaning and maintenance may more than double those numbers, assuming the materials are made in the USA and are of contract quality.
Vinyl is a porous material
Vinyl is a porous material similar to leather. The pores must breathe and should not be clogged with suntan and body oils. Damage to the finish due to improper cleaning, along with commercial use and exposure, results in mildew and other fungi becoming firmly rooted in the pores. The vinyl soon becomes badly stained and virtually impossible to clean. At this point, the damage is done and it is time for new vinyl. I do not recommend the use of vinyl “protectants” because I believe they combine with other chemicals in the commercial environment, get baked in by the sun and clog the pores like oils. The furniture will look great for a while and then the straps will suddenly start to break.
Suntan oil
Suntan oil badly stains vinyl due to iodine and other caustic chemicals it contains. Without proper removal, these chemicals will become baked on by the sun and will eat away the finish of the vinyl. Ultimately, the stains will degrade the vinyl, causing it to crack and break. The combination of sunshine, pool chlorine and suntan oil is fatal to vinyl.
Other sources of stains
Avoid using unfiltered well or ground water when cleaning the furniture, and pay attention to where the wind blows the ground water from sprinkler systems. Unfiltered water often causes staining of outdoor furniture due to sulfur, iron oxide and other minerals common in Florida’s ground water. Only fresh city water or filtered well water should be used. Other sources of stains are the pods and bark of many tropical trees and shrubs. Small pods from flowers fall to the deck and leave brown stains. The primary staining agent is tannic acid, which is used in the tanning of leather, dyeing of cloth, in the production of paper and silk and as a coagulant in the manufacturing of rubber. Tannic acid is found in many trees & shrubs, such as:
- Kola trees
- Eucalyptus
- Horehound and other plants in the mint family
- Hickory and other nut husks
- Galls (swelling of plant tissue due to parasites) of tamarisk trees and shrubs
- Bark, galls and foliage of most species of oak trees
- Golden-yellow color pigment in autumn leaves
- Bark of Eastern hemlock, cinnamon, witch hazel, cinchona and cascara sgrada
- Red mangroves
- Bark & foliage of sumac and other trees and shrubs in the cashew family
If you see yellow or brown stains on decks, pump houses and outside walls, stains may also occur on nearby outdoor furniture if care is not taken.
Colors
Years ago, when they took the lead out of gas, they also took it out of vinyl. Without the lead in the vinyl, previously good vinyl colors like browns and beiges suddenly seemed to stain worse than usual. They stained quickly and very badly in commercial settings. Today, we know that some colors react much worse than others to chemical staining due to the interaction of the color pigments with chemicals found in the commercial environment. Red pigment seems to be the source of the worst problems. Most browns and beiges and all peach, rose, mauve, red, burgundy and orange shades are most susceptible to staining and degrading. Blues, greens and yellows are less susceptible. White and off-white are the most durable of all colors. When choosing vinyl strap colors, keep in mind that the darker a color is, the hotter it gets, the more it will fade and the quicker it will break down. It is generally best to choose pastel colors rather than dark colors. However, there are some benefits to using very dark colors: they hide stains better and they get so hot, they force people to use towels.
Using towels
Many condominiums have signs that clearly require all people using the pool furniture to lay on towels. These signs are an excellent idea and should be expressed in the strongest terms: “Do not lay on the furniture without a towels.” If firmly enforced, this practice may double the life of new vinyl.
Pressure cleaning
Perhaps the most efficient method of cleaning commercial patio furniture is with a pressure-washer using plain water under low pressure. Mild disinfectant or detergent may be used, but do not use chlorine or harsh cleaning solutions. A mild disinfectant called “quaternary ammonium chloride” is used in pressure-wash solutions and is effective in cleaning and disinfecting patio furniture without harm, if properly used in moderate amounts.
Clean with mild soap and warm water
Absent a suitable pressure washer, outdoor furniture should be cleaned with a soft brush, using mild soap and very warm water. Dawn is the best soap because it has emulsifiers that break down the stains common to outdoor furniture and is relatively scum free. After a few years, when the finish is worn and plain soap and water will not clean the vinyl any more, begin to add small amounts of household bleach. Start with a capful or two of bleach per gallon of filtered water, working up to half and half during the following year or so. When a half and half solution no longer cleans the vinyl, it’s time for new vinyl. The top surfaces of outdoor furniture, especially chaises, are most critical, and should be cleaned weekly or biweekly. Simply wipe down the top surfaces and rinse with filtered water. Once every four to six weeks, wipe down the bottom and back surfaces to control mildew.
Wax the frames
Just as your car benefits from annual applications of wax, so will the frames of outdoor furniture. Lightly wax the arms, legs and other non-strapped areas of the frame with high grade, non-abrasive car wax. Do not use compound wax and be sure to wipe off any wax that gets on the vinyl straps.
Commercial cleaning solutions and chlorine
It is a common misconception that pool chlorine, household bleach, chlorine based cleaners, and other strong solutions and solvents are good for cleaning stained vinyl. These chemicals are fatal to the vinyl’s finish. They will clean well for a time, but they clean by removing layers of the finish along with the staining material on top of the finish. After a while, it becomes impossible to clean the vinyl. It becomes stiff and hard, loses its memory, and begins to crack and break. This is an inescapable process that is accelerated two to three times or more by the use of harsh chemicals. Pool chlorine is about 4 times stronger and much more caustic than household bleach. Outdoor furniture should never be cleaned with pool chlorine for any reason.
Do not throw furniture in the pool
Never throw your furniture in the swimming pool unless a hurricane is imminent and there is nowhere else to put it. Prolonged exposure to pool chlorine will severely damage the finish of the furniture and will cause corrosion of the aluminum inside the tubing. Even with great care, it is impossible to avoid scratching and chipping the furniture. Following these simple rules will result in extended life for the associations outdoor furniture. Annual costs will decrease substantially, the furniture will look good, and the residents will be happy. Look ahead for future articles on the selection and maintenance of umbrellas and sling furniture, as well as what to look for in commercial quality specifications for new outdoor furniture and refinishing.
