Protein glue, or animal glue, is an adhesive typically made from animal gelatin protein. It is also sometimes called “cake glue” in reference to its appearance in 9-10lb blocks after production To ensure protein glue remains a non-toxic and sustainable product, other raw materials, like water, Epsom salts, corn sugar, and glycerin, are added to the gelatin.

Used most commonly in bookbinding, box making, and lamination applications, protein glue is often applied using a wheel, roller, or application pad. Due to its raw ingredients and the nature of how it is applied when protein glue runs too thick or too thin, it can create a frustrating and often messy issue on your production line. 

Troubleshooting why your glue might be running too thin or too thick is essential to efficiency and product quality. To do that, it’s important to understand protein glue viscosity.

Winter is here, and with it come frigid temperatures that can impact more than just your heating bill—it can also affect your glue. Whether you’re working with liquid water-based adhesives or gelatin glue, cold weather can significantly alter their performance and, in turn, your production efficiency.

Let’s explore how cold weather affects these types of adhesive, why proper handling is essential, and how to mitigate production issues during winter. For additional tips on how to apply glue and transport it during the colder months, check out Glue Application and Storage Tips for Winter.

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In the manufacturing world, using the right adhesive can make all the difference in production efficiency and product quality. At LD Davis, we specialize in helping manufacturers identify and test the ideal glue for their specific needs, ensuring that their processes run smoothly and efficiently.