Super Ester (Stabilized Rosin Ester)
Better Stability than Our Ester Gum and General Rosin Esters
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Derived from a natural resin, rosin
- This resin has a long history as a tackifier for adhesives
- Compared to our Ester Gum, it has a light-color appearance, is more stable at high temperatures and has good weather resistance
Product |
Color (Gardner) |
Softening Point (ºC, R&B) |
Acid Value |
A-75 |
7 max. |
70-80 |
10 max. |
A-100 |
7 max. |
95-105 |
10 max. |
A-115 |
7 max. |
108-120 |
10 max. |
W-100 |
7 max. |
95-105 |
10 max. |
W-115 |
7 max. |
108-120 |
20 max. |
W-125 |
7 max. |
118-130 |
20 max. |
A-18 |
5 max. |
Viscosity (mPa・s) about 200 |
30 max. |
KE-364C |
14 max. |
Viscosity (mPa・s) about 1,000 |
40 max. Hydroxyl Value: 100 (typical) |
Characteristics: Good oxidation,weather, heat resistance and good compatibility with EVA, rubbers and acrylic polymer
Use: PSA, HMA and acrylic adhesive