Crathern rigid box machines have been a staple in the packaging industry for decades. While Crathern & Smith no longer manufactures new box-making machines, their equipment remains widely used in production facilities. Finding the right adhesive and stay tape solutions for these legacy machines is essential for maintaining efficiency and product quality. LD Davis provides PFAS-compliant protein glues and stay tape specifically formulated for Crathern rigid box machines.

In the world of rigid box manufacturing, precision and durability are key to producing high-quality packaging. Emmeci rigid box machines are known for their automation, efficiency, and exceptional production capabilities. However, even the best machinery requires the right materials to ensure optimal performance. That’s where LD Davis comes in—offering PFAS-compliant stay tape and protein glue solutions tailored for Emmeci machines.

Have you ever wondered how glue is made? At LD Davis, we produce a wide range of adhesives tailored to meet the needs of various industries. Each type has a unique manufacturing process, from eco-friendly, natural glues to cutting-edge synthetic adhesives. Let’s take an in-depth look at how some of our most popular adhesives are created.

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.