Maleic rosin is product of rosin and maleic acid anhydride. Use for paper manufacture, paint, printing ink, adhesive and insulating material.

Appearance Softening point Color Acid number Unsaponifiable matter
(R&B,oC) Gardner (50%ethanol) mgkoH/g 
Light yellow crystal solid ≥82 ＜3 ≥176 >5

Specifications.

Item No.	Appearance	Softening point (R&B oC)	Color (Gardner)	Acid No. (mgKOH/g)	Saponification value
RM103	Light yellow flaky solid	≥84	≤10	≥170	≥190
RM105	Light yellow flaky solid	≥86	≤10	≥180	≥205
RM107	Light yellow flaky solid	≥90	≤10	≥190	≥210
RM115	Light yellow flaky solid	≥106	≤10	≥220	≥280
RM120	Light yellow flaky solid	≥110	≤10	≥230	≥290
RM130	Light yellow flaky solid	≥120	≤10	≥255	≥340