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FibraLast paper barrier technology

Featured Product from AGC Chemicals Americas, Inc.

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Click here to view a time-lapse video comparing oil poured onto molded products treated with FibraLAST and traditional sizing agents. It shows the results of corn oil on molded fiber trays for an hour.

New Non-Fluorinated Barrier Technology
There has never been a non-fluorinated sizing additive that could protect paper products like fast-food containers from both water and food oils. That has changed with AGC’s development of a new wet-end additive that can be added to fibers during production.

This next generation material science solution will replace current technology that is being phased out due to regulatory concerns and consumer preferences. It is made with natural materials that are safe, while maintaining its effectiveness as a repellent for molded fiber.

FibraLAST additives prevent the bleed-through of high-temperature liquids and food oils through the fiber – achieving 80 °C water and oil holdout performance. They can be used as an alternative to traditional oil sizing products, which are spray-coated on products after fabrication.

Besides being non-fluorinated these additives are made from plant derived components and don’t contain silicones or heavy metals.

They are FDA compliant for contact with all types of food, with the following limitations:

  1. Maximum loading of 20% active content by weight of oven-dried pulp
  2. Add prior to sheet forming
  3. Use in accordance with current good manufacturing practice

Kosher approval is pending, as is Kosher certification of the manufacturing facility. Also pending is BfR and BPI-certified compostable certification.


Molded, formed fiber, and cardboard products, Fast-casual bowls, plates, containers and pizza boxes.

Applying the moisture barrier
FibraLAST technology is designed for wet end processes. Since the additives are applied to the paper pulp before fabrication, no additional equipment or process is required. Pulp and paper mills can cost-effectively enhance their products with this barrier technology, providing a major competitive advantage for molded fiber products.

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For almost a century, AGC Chemicals has been manufacturing high-performance materials serving industrial customers. Already the world's largest, longstanding custom compounder of PTFE and other fluoropolymer resins, AGC continues to build its product line with the introduction of FFKM resins that meet the growing demand for tougher, more durable products for today's production and manufacturing environments.