Another useful and highly effective way to clean resin chairs is by car wax.
Car wax on resin furniture.
This distinctively blended product effectively penetrates and replenishes natural oils.
It can happen to almost any material that is left in the sun for long periods of time including aluminum fiberglass and even car paint.
Resin on furniture is non pigmented paint.
You might want to give it a light hand sanding just to smooth it out and or apply a wax.
Using wax on resin can make a real mess and take a long time to buff out with all the little nooks and crannies.
I would stay away from using wax.
Oxidation commonly occurs on outdoor furniture such as resin plastic chairs and is caused from prolonged exposure to the sun.
Sunshield should be used regularly or whenever outdoor furniture looks faded or dry.
Patio furniture is always exposed to the elements.
I would pick a carnauba based wax just for the hardness.
It may also make the furniture too slippery and cause someone to slip right out of a chair.
The great advantage of all of this work is that you have a really nice feeling chair the wax makes it silk like comfortable on bare skin and you can repeat the process for years if you like.
An appropriate amount needs to be applied on the chairs and then buffed so no residue remains.
Meguiar s was founded on furniture wax.
A pressure washer or even taking the chairs to a car wash for a professional washing is also helpful in the event that none of the methods mentioned above work.
There used to be waxes for resin furniture but if you can t find them use a car wax.
Applying occasional coats of boat or car wax to the chairs will protect them from future oxidation.