Lignin-based additives for gypsum board - an alternative to PNS

Borregaard supplies lignin‑based additives for gypsum board production, supporting producers that are evaluating alternatives to conventional PNS‑based fluidisers.

Our products are used to improve slurry flow, water reduction and process stability, while supporting the production of no‑added‑formaldehyde plasterboards and reducing reliance on fossil‑based chemistry.

We offer both standard‑grade and superior‑grade lignosulfonates, suitable for gypsum board production with natural, synthetic and recycled gypsum.

Borregaard’s portfolio includes:

• Superior‑grade lignosulfonates
  (Ultrazine® product range)
  Designed for more demanding board lines, where higher and more consistent performance is required.
• Standard‑grade lignosulfonates
  (BorreGYP®, Borresperse®)
  Used where cost efficiency and basic fluidising performance are the main requirements.

These lignin‑based additives can be used as water reducers / fluidisers and are compatible with common gypsum board formulations and additives.

Benefits offered

As water reducers / fluidisers

• Bio‑based alternative to synthetic PNS chemistry
• Reduced CO₂ footprint compared to synthetic PNS‑based fluidisers
• Robust performance across natural, synthetic and recycled gypsum
• Compatible with other gypsum board additives
• No significant impact on foaming

As part of accelerator systems

• Support efficient accelerator performance
• Help improve control of hydration and setting
• Contribute to stable performance over time

Supporting efficient and stable gypsum board production

Borregaard’s lignin‑based additives are based on lignin, a natural polymer derived from wood. They offer a renewable alternative to synthetic polymers, while meeting the performance requirements of modern gypsum board production.

Our products are supported by application knowledge, testing experience and technical support, helping producers evaluate and implement alternatives to PNS in a controlled way.