Envirowood is made from an extremely high performance polymer that does not require sealing, painting or staining. It will not rot or splinter, and contains UV inhibitors that resist fading. Envirowood is not affected by most corrosive substances, and will not absorb moisture or promote bacterial growth. To maintain Envirowood furniture you must simply clean it regularly with soap and water (avoid pressure washing). The stainless steel fasteners used to assemble your furniture are virtually maintenance free under normal conditions. Seaside uses only the highest quality stainless fasteners to assemble furniture; however in coastal areas hardware will require regular washing or rinsing with fresh water to avoid rusting. Avoid using harsh chemicals on Envirowood furniture. Stainless steel hardware will rust in high salinity environments if not properly maintained as described.