Polysulfides in Action: Formulations and Applications

Polysulfides are one of the oldest elastomers used to make sealants and adhesives (almost 100 years old), and still the polysulfide market size is estimated to be valued at US$ 3 billion in 2023 and is expected to surpass US$ 6 billion in 2033.The fact that polysulfides can be formulated to several demanding applications like construction sealants, transportation sealants and insulating glass adhesives makes this elastomer still commercially important.

But Polysulfides are tricky in formulations as the selection of correct raw materials, mixture ratio and the amount of catalyst to get the reaction going still troubles formulators. Time to understand how to tailor the specific needs of adhesives and sealants using polysulfides through correct tools and formulations techniques.

Through this course you’ll be able to:  

1. Learn basics of polysulfide sealants and adhesives that also can be applied to other types of sealants and adhesive technology (polyurethane, waterborne, etc.)


2. Understand the selection of correct raw materials and their effect on performance while solving issues.


3. Find out ways to improve performance and cost, by finding answers to ‘where to start’ and ‘what to do when something goes wrong


4. Gain the formulations basics and the steps in the development through examples of DOE and how they can be tailored to meet specific needs.

Adhesive and sealant formulators who are seeking new formulations and market opportunities. 

Formulators looking to solve performance issues. 

R&D engineers looking for meeting specific substrate needs 

Adhesive/Sealant Companies, trying to extend their product portfolio

1. Background
• What are polysulfide rubber polymers?
• What is their chemistry to prepare
• What are they used for?
• What are the advantages and disadvantages of polysulfide


2. Liquid Prepolymers
• Types
• Uses


3. How are they cured? Chemistry


4. Formulation basics
• Steps in the development of a formulation
• Example of a DOE


5. Applications
• Sealants
1. Background
2. Testing
3. Sample formulations


• Adhesives
1. Types
2. Testing
3. Sample formulations


6. Conclusion


7. Suppliers


8. Acknowledgements


9. References


10. 30 mins Q&A - Interact live/ ask questions directly from the expert!

Have a query? Email us for any help!