FR 450 Fire Retardant Exterior Sealer

FR 450 Fire retardant Sealer is a translucent water based sealer with superior weathering ability. It penetrates deep into the wood to protect the fibers from moisture and mildew. This penetrating action is unlike some sealers that put a glass like coating over the wood, which does not allow for the expansion and contraction of the wood. Because the wood is inhibited from breathing and flexing, the results are cracking, mildewing and early decaying of the wood. Additionally, FR 450 contains UV inhibitors to protect the wood from the devastating effect of sunlight (ultraviolet rays) and eliminates the yellowing effect. Developed in conjuction with WW 790, this creates a Class A rating.

  • Wood shingles or shakes
  • Redwood or cedar decks
  • Wood fences, Siding, Sheds, Barns
  • Hardwood floors
  • Framing lumber
  • Wall Board (plywood)
  • Cotton canvas such as that used for tents, cabanas
  • Any exposed wood


Translucent Allows you to see the coverage
Water based Easy clean up with soap and water
Low VOC Will not harm the environment
Non-toxic Does not require special handling
No Mineral Spirits or Petroleum Non combustible wet or dry; no special storage
Appearance Natural satin finish not a high gloss unnatural look
UV Inhibitors Acts to prevent against yellowing
High solid content Superior resistance to weathering
Penetrates Surface Allows the wood to breathe and flex

Enjoy the benefit of an excellent sealer that leaves a beautiful finish and the added security of knowing the treated structure surface is Fire Resistant.



Can be brushed, sprayed or dipped. To be used over WW 790 fire retardant for maximum fire protection. Surface and substrates must be thoroughly dry. Coat to refusal, depending upon the wood surface expected coverage rate 200 - 300 square feet per gallon. Drying time: Touch 2 - 4. Cure 72 hours - DO NOT APPLY if rain is imminent during this period.

We appreciate your interest in our products and we will be happy to answer any additional questions you may have. Please contact us, or speak with any of our product support specialists by calling:


(M-F  9 to 5 PST)


Delta Pacific Technologies, Inc.
601 N. Poplar Street
Orange, CA 92868