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/ Natural Resins / RESINS Copal
Copal resins are native to Indonesia and the Philippines. This alcohol soluble resin is used as a raw material for varnish because it has good storing quality, and produces a lustrous, elastic finish with good weather properties. These varnishes are used in the manufacture of wood, paper products, packaging coatings of all types, label and wallpaper finishes.
Other applications include linoleum, oil cloth, printing inks, adhesives, cements, and floor and shoe polish. Copal is used in the manufacture of dental products.
|
| SCRAPED |
|
| PWS |
|
| DBB |
| Trade Name: | Copal |
| Description: | White/yellow to brown |
| Solubility: | Alcohols and Ketone |
| Insolubility: | Hydrocarbons and Esters |
| Properties | Scraped | PWS | DBB |
| Melting point | 90°C – 125°C | 90°C – 130°C | 90°C – 140°C |
| Acid value | 110 - 145 | 110 - 140 | 110 - 140 |
| Ash @ 800°C | .2 maximum | .2 maximum | .55 maximum |
| Insoluble Impurities | 5% maximum | 6% maximum | 13% maximum |
Natural resins are subject to variations due to environmental conditions during harvest. Therefore, the above parameters may vary.
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