2 external plastic relaxing chairs; multifunctional (Scunthorpe DN15)

We have had these two chairs for years: we kept them out for the summer and then put them in the garage for winter. Over the years the surface has lost its sheen and has been spoilt by grey blots on its surface. I have tried cleaning them but I think it is the plastic degrading. You can get covers for them but they are expensive. I have even thought of painting them! Anyway they are substantial, wont blow in the wind unless very windy. Still have lots of life inside them. It is a shame to throw them away.