Epoxy Silane: Removed as a safe material in adhesives from Flexible Packaging
In the first episode of H.B. Fuller’s Glue Talks podcast we discuss epoxy silane alternatives in adhesive formulations. We will delve into the vital topic of epoxy silane alternatives and their impact on safety and industry advancement.
Introduction and Significance of Epoxy Silane Alternatives
Joining us for this discussion are Alexandra Ross, Regulatory Specialist, and Andreas Meyer, Head of R&D for New Flexible Packaging Adhesive Developments in Europe at H.B. Fuller.
Understanding Epoxy Silanes
Epoxy silanes, commonly referred to as "glumo" or "gleo," play a crucial role as adhesion promoters within the adhesive industry. These substances are pivotal for enhancing bond strength with inorganic substrates like aluminum foil and siox layers. Their unique covalent bonding properties ensure strong adhesion, even under demanding conditions such as high temperatures and moisture exposure used in food preservation methods.
Current Relevance and Safety Considerations
As industries, like food packaging, continue to utilize epoxy silanes, questions surface concerning their impact on both worker safety and consumer health. These concerns stem from their categorization as mutagenic and report toxic substances (CMRs). Evolving regulations have prompted a reevaluation of their use, particularly the established 10 PPB rule.
Innovative Strategies by H.B. Fuller
To address these concerns, H.B. Fuller is taking proactive measures to redefine adhesive formulations. The company's approach centers around three key strategies:
1. Safe Substance Selection: Embracing substances with no migration limits specified in European directives, along with those boasting higher specific migration limits
2. Quantity Control: Regulating the quantity of substances within formulations to mitigate potential migration risks
3. Chemical Incorporation: Integrating substances into polymer backbones through chemical reactions to minimize or eliminate migration concerns.
H.B. Fuller is dedicated to substituting epoxy silanes with safer alternatives, with a focus on amino silanes. These alternatives maintain performance while prioritizing consumer safety. Additionally, H.B. Fuller is exploring innovative technologies, polymers, additives, and primers to expand adhesive options beyond current standards.
Industry Impact and Future Trends
In an ever-evolving landscape, collaboration and innovation are pivotal. Industry associations such as FEICA, along with internal working groups within H.B. Fuller, play a crucial role in finding effective solutions. Emerging regulations, including the Green Deal, bring new challenges that necessitate meticulous consideration of material impacts on recycling and environmental sustainability.
Stay Informed and Engaged
For in-depth insights on this critical subject and other industry trends, subscribe to this podcast or H.B. Fuller’s "Glue Talk" blog and stay connected with us on social media and YouTube for the latest regulatory updates and valuable industry knowledge.
Epoxy silane alternatives are driving the adhesive industry towards enhanced safety and innovation. Industry leaders like H.B. Fuller are at the forefront of positive change, ensuring consumer safety and sustainable packaging solutions.