Which Product Should I Use?

Seal It Green Wood Treatment (non-toxic formula) vs. Seal It Green XTREME

Both products do very much the same thing but with two very big differences:

Seal It Green Wood Treatment (non-toxic formula)

  • Wood Treatment can be applied to wet wood.
  • Wood Treatment can be applied indoor/outdoor near people and pets without fear of harmful vapors.Note: Adding color to your project must be done in a separate step. For the best overall protection we recommend coating with Xtreme and your choice of 17 colors.

Note: Adding color to your project must be done in a separate step. For the best overall protection we recommend coating with XTREME and your choice of 17 colors.

Seal It Green XTREME Formulas

  • Wood must be lower than 17% moisture content unless you are using kiln-drying formula or Tree Carver.
  • Added color to Xtreme enhances the natural beauty of wood grain instead of covering it up.
  • Sun block up to 55, 65 and 75.
  • 17 colors to choose from.
  • Xtreme has a broader spectrum of Biocide immediately stopping mold and fungus growth. In some instances Xtreme will remove existing mold or blue fungi on the substrate.

For any questions, please please feel free to call us at 1-800-914-1440.

Why Redwood

From RealStrongRedwood.com

Abundant, renewable and energy-efficient, redwood is clearly the environmental choice.
But it’s a beautiful choice for so many reasons:


  • Redwood delivers natural beauty and durability
  • Redwood maintains its natural beauty and structural integrity with easy maintenance
  • Redwood stays cool and steady under-foot all summer long
  • Redwood has a natural resistance to shrinking, warping and checking
  • Redwood decking stores more carbon than is emitted over its entire life cycle
  • A redwood deck can be restored repeatedly with minimal effort and cost
  • The warmth and rich luxury of genuine redwood is not only affordable, but adds great value to your home
  • Overall, redwood decking offers significant environmental advantages over plastic composite decking
  • Redwood decking meets California’s strict fire codes

Exterior Finishes for Decks

Finish Decks for Optimal Performance

Although Western Red Cedar is a naturally durable wood ideal for decks, its performance is enhanced when protected by an appropriate finish. Decks are subjected to the most challenging exposure conditions. The combination of a horizontal surface, the abrasive effects of foot traffic, pounding rain and full exposure to sun make deck finishing more demanding than other finishing applications such as siding. It is important to ensure that the finish you apply to your Western Red Cedar decking boards has been specifically formulated for this end use. Unseasoned decking should be air dried (not exposed to direct sunlight) and finished on all sides prior to installation.

Choice of Deck Finishes

A full range of both penetrating and film forming finishes are available for cedar decks. Since they do not form a film, the penetrating finishes provide better overall performance and are the easiest to maintain and refinish. Penetrating finishes do not flake, crack, or peel. These treatments help repel water and if formulated with a mildewcide, slow down the growth of micro-organisms like mildew. The penetrating finishes are often used as a natural finish for cedar decks. There are three types of penetrating finishes: water repellents, water repellent preservatives, and solvent-borne semitransparent stains. The best of these finishes are solvent-borne semi-transparent ones.

Transparent Stains and Water Repellents

These are essentially colorless, penetrating finishes that are commonly used for cedar decks. These natural finishes enhance the appearance and service-life of cedar decks. The water-repellent preservatives are preferable to the water-repellents because they contain a mildewcide and often other fungicides that help inhibit surface mildew growth. Many of these water-repellants contain ultraviolet light blockers or absorbers that help protect the Western Red Cedar from amaging sunlight. To date, the best of them are solvent-borne. The water repellent preservative finishes are very effective in stopping the absorption of liquid water thus reducing swelling and shrinking of the wood. Water-repellents should be used only on newly manufactured bare cedar, on restored bare cedar, or on cedar previously treated with the same type of product. When used as a natural finish, the service life of a water repellent is only one to two years depending on the wood and exposure conditions.

Semi-Transparent Stains

Semi-transparent stains have pigments which provide color and greatly increase the durability of the finish. The pigments help block sunlight and protect the cedar surface, thus increasing service-life. The better products contain water repellents and mildewcides or fungicides. The solvent-borne, semi-transparent stains penetrate into the cedar without forming a film and do not blister or peel even if excessive moisture enters the cedar. However, latex semi-transparent stains can sometimes build up a film, especially on recoating, which can lead to peeling. Latex stain formulations currently being developed may correct this problem.

It is possible to switch to a semi-transparent stain when the deck needs to be refinished. Even if the deck has been coated with a clear or transparent stain for many years, an oil-based semi-transparent stain can be applied, provided the wood surface is cleaned.

Note: Film-forming finishes are normally not recommended for use on Western Red Cedar decks because they can fail by cracking, flaking and peeling and can be very difficult to refinish and maintain.

This Article was contributed by : Western Red Cedar Lumber Association