Rosin resin SJ-30 is used to be adhesive agent. It is tint yellow viscidity liquid. The acid value is no more than 16 mgKOH/g; The Color is less than 4(APHA) and the softening point is between 25 and 35.
New product SJ-30 liquid rosin resin is developed to overcome the shortcomings of all kinds of heat melt gum which appears brittle rupture, bad cold resistance, bad low temperature resistance, bad adhesive strength during using. This product can improve the flexibility of heat melt gum, enhance the adhesive strength. It gets the consistent recognition of domestic famous heat melt gum factories. We suggest you confect the SJ-30 resin according to 5% usage, which can show its good anti-brittle rupture and cold resistance, low temperature resistance, enhance the strength of adhesive agent. We also can adjust the confection usage according to the customer's requirement. Under normal climate conditions, it can show its excellent adhesive strength.