How long does the sealant last?

How long does the sealant last?

The heavier the tint, the more pigment it has, so the longer the sealant will last.

Clear sealants, whether oil-based or water-based, last no more than 1 year on horizontal surfaces and 2-3 years on vertical surfaces, depending upon exposure.  This is an excellent choice for owners of cedar or redwood decks, allowing the full-bodied natural color of the wood to show through, while adding a richly burnished, translucent tone.

Owners of pressure-treated wood decks (like most 3-story porches), want to minimize maintenance while enhancing appearance.  They use a tinted toner, like Olympic’s Maximum line of sealants, that need not be stripped when resealed.  The toners and semi-transparents are warrantied to last between 2-5 years, 2-3 on horizontal surfaces directly exposed to the elements, and 3-6 on vertical surfaces like railings or posts … tho often less if the surface has worn considerably or been left unsealed for too long.  Typical maintenance dictates that flat decking be powerwashed and resealed 2-3 years, and that every 3-6 years the vertical surfaces be done.

Semi-solid sealants can last up to 5 years, and solid (opaque) sealants last even longer, but stripping or sanding is required between applications, adding cost in the long term.