Name: Rosin Ester Tackifier Dispersion RE-50
Brand: Coatingsink
SKU: rosin-ester-dispersion-re50
Availability: InStock

Question 1

What is the difference between rosin ester and hydrocarbon tackifiers for water-based PSA?

Accepted Answer

Rosin ester tackifiers (like RE-50) offer better tack at room temperature and superior adhesion to paper and paperboard, making them preferred for label and packaging applications. Hydrocarbon tackifiers (like TD-200) have broader compatibility with synthetic rubber systems and better aging stability. For acrylic PSA on paper labels, rosin ester is typically the first choice.

Question 2

Does RE-50 affect the water resistance of the final PSA coating?

Accepted Answer

Rosin ester dispersions can slightly reduce water resistance compared to fully synthetic hydrocarbon tackifiers because of the ester linkages. For standard indoor labels and carton sealing, this is not a concern. For applications requiring prolonged water exposure (freezer labels, outdoor signs), consider a synthetic hydrocarbon tackifier or ensure the PSA formulation includes a crosslinker.

pH	8–10
Compatibility	acrylic emulsions, natural rubber latex
Solid Content	50±1%
Viscosity (25°C)	500–1500 mPa·s
Softening Point (rosin grade)	~95°C

Rosin Ester Tackifier Dispersion RE-50

Specifications

FAQ

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