Share to your channels
Global Experts Unite:
Expanding the Performance Envelope of Silyl-Modified Polymer Adhesives at WAC 2026
From 16–18 September 2026, the global adhesives and sealants community will gather at the Queen Elizabeth II Centre in London for the World Adhesive & Sealant Conference and EXPO 2026—one of the industry’s principal international forums for scientific exchange, innovation and collaboration.
L&L Products R&D Manager Dr Claudio Toncelli will present new research on the development of high-strength silyl-modified polymer adhesives. His work explores how SMP technology can move beyond its traditional role in sealing and flexible bonding to achieve semi-structural strength—without sacrificing the high elasticity that makes these materials valuable for dynamic and mixed-material joints.
The presentation examines the formulation science behind this balance, the interaction between polymer architecture, crosslinking functionality, adhesion promoters and fillers, and the role of complementary 1K and 2K cure strategies in meeting different manufacturing requirements.
Global Expert Unite
Expanding the Performance Envelope of Silyl-Modified Polymer Adhesives at WAC 2026
From 16–18 September 2026, the global adhesives and sealants community will gather at the Queen Elizabeth II Centre in London for the World Adhesive & Sealant Conference and EXPO 2026—one of the industry’s principal international forums for scientific exchange, innovation and collaboration.
L&L Products R&D Manager Dr Claudio Toncelli will present new research on the development of high-strength silyl-modified polymer adhesives. His work explores how SMP technology can move beyond its traditional role in sealing and flexible bonding to achieve semi-structural strength—without sacrificing the high elasticity that makes these materials valuable for dynamic and mixed-material joints.
The presentation examines the formulation science behind this balance, the interaction between polymer architecture, crosslinking functionality, adhesion promoters and fillers, and the role of complementary 1K and 2K cure strategies in meeting different manufacturing requirements.
Share to your channels
A Global Stage for Adhesive and Sealant Innovation
Held under the theme “Reinventing the Future,” WAC 2026 will bring together adhesive and sealant producers, raw-material suppliers, researchers, equipment specialists and downstream users from around the world.
Across three days of plenary presentations, technical breakout sessions, exhibitions and networking events, participants will explore topics including advanced adhesive formulation, sustainability and circularity, digitalisation, process control, regulatory developments, emerging raw materials and new industrial applications.
Claudio will present “Development of High-strength Silyl-modified Polymer Adhesives” during Breakout Session XIV, “SMP Chemistry: Advancing Adhesive Performance.”
Presentation details: Friday, 18 September 2026 | 11:00–11:30 | Room Whittle, Floor 3
His contribution places L&L Products alongside international researchers and materials specialists working to expand the capabilities of silane-modified adhesive technologies.
The L&L Touch: Moving SMP Adhesives into the Semi-Structural Range
Silyl-modified polymer adhesives are widely valued for their elasticity, broad substrate adhesion, moisture-curing chemistry and isocyanate-free profile. However, increasing cohesive strength commonly introduces a difficult formulation trade-off: as network density rises, the adhesive can become less capable of accommodating deformation.
Claudio’s work addresses a central technical question:
Can an SMP adhesive achieve semi-structural strength without giving up the high elongation required for vibration, thermal expansion and differential movement?
Who Should Read This Paper?
This paper is designed for:
- Adhesive Formulators
- Polymer Chemists
- R&D Specialists
- Materials Engineers
- Transportation Engineers
- Bonding Specialists
- Manufacturing Engineers
- OEM and Tier-1 Development Teams
Key Insights
- Why increasing SMP strength can reduce elasticity
- How polymer architecture and reactive functionality influence network performance
- The role of adhesion promoters, fillers and rheology control
- How A-J930 combines 7.3 MPa* tensile strength with more than 500% elongation
- What 7.1 MPa* lap-shear strength on abraded aluminium means for semi-structural bonding
- Why substrate failure on glass must be interpreted differently from adhesive failure
- How primerless adhesion, paintability and low-sag behaviour support industrial application
- The difference between surface cure, through-cure and handling strength
- How a distributed 2K booster accelerates early strength development
- Where 1K and 2K SMP systems can support transportation and mixed-material assemblies
*See technical paper for more details on testing
About the Author
L&L Expert Talks
Stay tuned for our next topic
"*" indicates required fields
DR CLAUDIO TONCELLI
R&D Manager
Dr Claudio Toncelli is an R&D Manager at L&L Products, where he leads the development of high-performance polymer materials and adhesive technologies. His work focuses on polymer synthesis, modification, blending and processing, supported by extensive expertise in formulation, rheology and structure–property relationships.
Claudio earned his PhD in Chemical Engineering from the University of Groningen, where his research encompassed thermally recyclable materials, environmentally responsible electrophoretic coatings for the automotive industry, rheology modifiers and metal-ion scavenging systems. He also holds a Master’s degree in Industrial Chemistry from the University of Pisa, where he studied reactive compatibilization and the relationship between structure and mechanical performance in biodegradable polymer blends. His education is complemented by postgraduate training in scientific leadership, project management and intellectual property law.
With more than a decade of multidisciplinary research experience, Claudio has authored over 30 peer-reviewed publications, contributed to two patents and managed research programmes. His technical expertise spans polymer synthesis and processing, thermal and mechanical characterisation, advanced rheology, spectroscopy, microscopy and chromatography.
Claudio combines fundamental polymer science with applied materials engineering to address complex adhesive formulation and performance challenges.
About the Author
L&L Expert Talks
Stay tuned for our next topic
"*" indicates required fields
DR CLAUDIO TONCELLI
R&D Manager
Dr Claudio Toncelli is an R&D Manager at L&L Products, where he leads the development of high-performance polymer materials and adhesive technologies. His work focuses on polymer synthesis, modification, blending and processing, supported by extensive expertise in formulation, rheology and structure–property relationships.
Claudio earned his PhD in Chemical Engineering from the University of Groningen, where his research encompassed thermally recyclable materials, environmentally responsible electrophoretic coatings for the automotive industry, rheology modifiers and metal-ion scavenging systems. He also holds a Master’s degree in Industrial Chemistry from the University of Pisa, where he studied reactive compatibilization and the relationship between structure and mechanical performance in biodegradable polymer blends. His education is complemented by postgraduate training in scientific leadership, project management and intellectual property law.
With more than a decade of multidisciplinary research experience, Claudio has authored over 30 peer-reviewed publications, contributed to two patents and managed research programmes. His technical expertise spans polymer synthesis and processing, thermal and mechanical characterisation, advanced rheology, spectroscopy, microscopy and chromatography.
Claudio combines fundamental polymer science with applied materials engineering to address complex adhesive formulation and performance challenges.