EnduraFiber™ UKP (Unbleached Kraft Pulp)

Unbleached Kraft Pulp Products

Clean and uniform. Two things you want from pulp.

Our EnduraFiber™ UKP (Unbleached Kraft Pulp) starts with two very important attributes: cleanliness and uniformity. You can also expect a good balance of burst, tear and tensile strength. Plus, our UKP is easily bleached.

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What you can expect from us:


Made at WestRock’s Tacoma Mill, a participant in the United States Environmental Protection Agency (EPA) Performance Track program, which promotes continuous environmental improvement, public outreach and compliance


Moderately easy beating and good drainage


Best used with:

  • Fiber cement
  • Top or bottom ply in linerboard
  • Specialty merchandising kraft and wrapping paper
  • Shipping sack papers

Additional Product Information


  • All WestRock North American paperboard mills are certified to the SFI™, PEFC™, FSC© Chain of Custody Standards. Contact your WestRock sales representative for certified fiber availability for this product.Certificates Codes: SFI Certified Sourcing: NSF-SFILUFS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751FSC Company Code: FSC-C104002
  • Recyclable

Environmental & Product Safety

  • Notices under US California Proposition 65 and the EU REACH regulation are not required
  • Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC

*Contact WestRock for details
This information is subject to change without notice.

Food Contact

  • Meets multiple national requirements for food contact packaging, e.g., US and Canada. Contact your sales representative for information on specific markets and end-uses.


  • Produced at an ISO 9001 certified facility