NatraLock® Face Seal

Hang with the dependable choice for blister pack applications.

Looking for a paperboard that can hang tough, and still look great? NatraLock® Face Seal is the reliable, durable choice for your most demanding blister packaging applications. Its ability to achieve complete fiber tear in all directions, coupled with excellent ink adhesion, gives it the perfect balance of dependable performance and striking visual appeal your brand deserves.

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Features and Benefits

What you can expect from us:


Complete fiber tear in all directions provides excellent sealing and blister integrity in a wide variety of applications.


Exceptional hang strength produces sturdy, dependable packaging that reduces unsaleables.


A smooth surface combined with outstanding ink holdout delivers optimal printability without delamination.


Consistency from roll-to-roll and sheet-to-sheet make NatraLock Face Seal ideal for blister packaging applications.


Best used with:

  • Beauty and Personal Care
  • Media and Electronics
  • Toys
  • Sporting Goods
  • Automotive
  • Home Improvement
  • Tools

Paperboard Calculator

We understand that you rely on us for more than paperboard. In order to provide the best service possible, WestRock has developed roll, sheet and metric conversion calculators to make your job easier.

View the paperboard calculator

Additional Product Info


  • Recyclable.
  • 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.

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.

This information is subject to change without notice.


  • Produced at an ISO 9001 certified facility.

A clear choice for better security

To help boost security and remove barriers to purchase, we offer Natralock® tear-resistant packaging. As durable and secure as clamshells, Natralock provides superior product visibility and a safer, easier opening experience to help drive sales and profits.

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How can we help you meet your business goals? Contact a member of our team to learn more about our paperboard products and services.

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