You can go and get some soap and water which you probably already own and scrub the chairs clean. If the dirt still will not come off you can get a specialty cleaner that will get through the dirt and grime that is stuck on the chairs.
I think you should make a new patio, because if you restore it, it may not look good. If you buy the whole set, the whole thing will match and it will look pretty.
Restore is a verb. I like to restore old furniture. The noun form is restoration.
Plastic furniture is lightweight and easy to carry. Plastic furniture is usually cheap and may break easily, but is easier to clean and maintain.
Howard Restore-A-Finish can help restore the finish of your furniture by blending out scratches, blemishes, and other imperfections, while also adding color and depth to the wood. It can help rejuvenate the original finish and bring back the beauty of your furniture without the need for stripping or sanding.
well the disadvantages of glass furniture is its heavier than plastic and not as robust as plastic
That can be one of many things that he does
To restore faded wood furniture, start by cleaning the surface with a mild soap and water. Sand the furniture lightly to remove any remaining finish. Apply a wood stain or finish to restore the color and protect the wood. Finally, polish the furniture to bring out its natural shine.
PLASTIC
Plastic patio furniture offers several advantages. Plastic furniture is often cheaper to purchase, won't rot or require painting and is generally easier to clean.
Foam on the top where the leg of the furniture sits, and hard plastic on the bottom. The hard plastic is what slides easily along the floor, and the soft foam is what protects the furniture from the hard plastic.
Plastic patio furniture is an economical alternative to the more expensive wood and metal furniture. Many places now offer attractive plastic options in patio furniture. Check out Lowes.com, Sears.com, or even ebay.
Plastic furniture refers to furniture items made primarily from plastic materials, such as polyethylene, polypropylene, or PVC. This type of furniture is known for being lightweight, durable, and weather-resistant, making it suitable for outdoor use. Plastic furniture is available in various styles and colors, and it is often easy to clean and maintain.