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FirePRO®

Our Treatment Process

  • 1

    The timber is transferred into the treatment vessel.

    Step 1 in Applying FirePRO Fire Retardant
  • 2

    A vacuum pulls the air out of the vessel.

    Step 2 in Applying FirePRO Fire Retardant
  • 3

    FirePRO® preservative fills the vessel.

    Step 3 in Applying FirePRO Fire Retardant
  • 4

    The vessel is pressurised forcing the preservative into the timber.

    Step 4 in Applying FirePRO Fire Retardant
  • 5

    The preservative is removed and final vacuum is applied removing excess.

    Step 5 in Applying FirePRO Fire Retardant
  • 6

    The timber has now been preserved with the FirePRO® preservative.

    Step 6 in Applying FirePRO Fire Retardant
 

Video: Koppers® Lumber Treatment Animation

This Koppers animation explains the pressure treating process typically used to treat wood with preservatives for residential, agricultural and commercial uses.

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