Product Description:
High quality Copal resin (PWS grade) has a high alcohol concentration, light yellow color, and is dust-free.
Low quality Copal resin (WS/LAS grade) has a darker color, low alcohol solubility, and high dust content.
Product Specification:
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Acid value
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50～70mgKOH/g
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Characteristics
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Hard, soluble in alcohol, and relatively high melting point
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Application
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Used for the manufacture of varnish and paint materials, especially for the manufacture of instrument paint (violin paint, piano paint) and wood paint. Koba resin can also be used in the manufacturing of adhesives and lacquered fabrics. Koba resin is also used as a road marking paint, which helps to prevent resin penetration into road building materials.
3. Copal resin is also the most commonly used paint for pianos and violins in musical instrument factories.
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Impurity
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Max 1%
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Ash content
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Max 1%
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Product Picture:
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