putraperkasa : Gum Copal is a mature form of natural resin obtained from the sap of trees in Indonesia. Its properties of water resistance, solubility in alcohols, ability to give glossy finishing and superior binding abilities makes it an important source of raw materials for the production of varnishes, adhesives, paints, and perfumes.
At our Gum Copal processing unit in Indonesia, we employ strict quality assessment and the qualities we process include, PWS, DBB, WS, and Dust.
Gum Copal Grade
1.
Grade PWS
2. Grade DBB
Specifications :
|
Product |
Gum Copal PWS |
Gum Copal WS |
|
Physical
Specification : |
|
|
|
Appearance |
Whitish Yellow |
Blackish Yellow |
|
|
translucent nodules |
opaque nodules |
|
Nodule Size |
0,5 cm up |
0,5 cm up |
|
Dust % |
5% Max |
10% Max |
|
|
|
|
|
Chemical
Specification : |
|
|
|
Solubility in 95%
(v/v) ethanol |
Soluble |
Poor solubility |
|
Ash content |
1% Max |
3% Max |
|
Acid Value mg
KOH/gr |
80-100 |
70-100 |
|
Loss on drying |
1% Max |
1% Max |
|
Impurities |
1% Max |
% Max |
|
|
|
|
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