Natural finish & buffed teak, left to age naturally outside, will gradually change to a soft, silver-grey as the pigments in the surface layer of the wood begin to fade away. After the first few exposures to water, you should also expect the surface grain to rise slightly. As a part of the buffing process, the surface is wetted before final sanding to raise the grain, so there will be significantly less raised grain on buffed teak than on natural finish teak. We recommend that you allow your teak furniture to weather naturally this way and simply clean thoroughly once or twice a year with our Teak Cleaner. Buffed teak furniture may also benefit from an occasional light sanding to remove any raised grain and restore a smooth finish to the surface. Under no circumstances should a power washer be used to clean teak furniture as this will erode the surface. Because teak is a naturally oily wood, it is not possible to paint or varnish. Any paint or varnish applied will not adhere properly to the surface and after a short while will start to peel off. If you wish to retain the golden-brown colour of new teak we also offer a Teak Sealer. Application of Teak Sealer will not affect the strength or longevity of the furniture in any way, just its appearance. If you elect to use Teak Sealer you will be embarking on a regular maintenance programme as Teak Sealer needs to be regularly re-applied to provide continuous protection. If you intend to store your furniture over the winter, we recommend that you do so in a water-tight garden shed or garage. However, we advise that you do not move teak furniture from the garden straight into a heated indoor room for storage, as the sharp differences in temperature and humidity may cause the wood to split.