Hydrogenated rosin triethylene glycol ester

Hydrogenated rosin triethylene glycol ester (CAS 68648-53-3), also known commercially as Staybelite Ester 3, is a pale, thermally stable tackifier resin produced by esterifying hydrogenated rosin with triethylene glycol.

It functions as a plasticizer and rheology modifier in adhesive and coating formulations where oxidative stability and color retention are critical sourcing criteria for industrial manufacturers and chemical distributors.

In hot-melt and pressure-sensitive adhesives, it improves tack and flexibility while maintaining bond performance across temperature ranges. Printing ink manufacturers incorporate it to control viscosity and enhance substrate adhesion in packaging applications.

Rubber compounders use it as a softener to improve processability and flexibility in sealants and elastomeric compounds. In polymer and plastic formulations, it acts as a compatible plasticizing resin where low volatility is required.

This material is particularly valued in applications where resistance to yellowing is essential for the final product. Hydrogenated rosin triethylene glycol ester is typically supplied as pale yellow flakes or as a molten liquid for bulk shipment.

Technical grade is the standard commercial form, with product specifications commonly defined by softening point, acid value, and color on the Gardner scale. These parameters ensure consistent performance in high-precision manufacturing environments.

Packaging options generally include kraft bags for solid form and heated ISO tanks or drums for liquid supply. Proper storage in a cool, dry environment is recommended to maintain the chemical integrity and shelf life of the resin.