The Difference Between Ester Of Rosin & Terpene Resin

Ester of rosin has gum rosin as basic material and processed with polyol ester, polyol ester usually include glycerol ester and pentaerythritol ester. Glycerol ester of rosin and pentaerythritol ester of rosin can be applied to coating and ink, but pentaerythritol has better fast-dry, hardness & glossiness, not only that, it has better water-resistance, alkali-resistance and faster solvent release. If you want to enhance the color stability and other performances of ester of rosin, you can use polymerized rosin or hydrogenated rosin to instead of gum rosin, the softening point of ester of polymerized rosin is higher than ester of rosin, but hydrogenated rosin is lower.

Terpene resin, also named polyterpene resins or pinene resins. It is a series of liquid & solid linear polymer which primarily consist of α pinene or β pinene of turpentine that are catalyzed by Falk's catalytic, and polymerized by positive ion.