Fortified Rosin is a product of pine trees and is a commonly used internal sizing agent . Any good sizing agent improves the quality and life of paper. We Manufactures Fortified Rosin with varying degrees of total solid content as per customer specifications. However, the most popular grade is LGS-50 which contains 50% solids. Characteristics : Our fortified (LGS -P-FR20) is soluble in cold water &does not foam& forth. It is ensure stable sizing with alum in stock pH range 4.0-5.0 LGS -P-FR20 is packed in 200 liter capacity drums. And stored in tanks of mild steel ,pvc or similar materials. Properties : Appearance : light brown colored paste Ionic Character : Anionic pH value : 9 to 10/as per requirement Solid Content : 50% Acid Number : 235mg KOH/g Density : (-1.16) gm/cm