Standard One Shellac » Shellac Yellow   Technical Specifications
Yellow (Standard One Shellac)  
Essential
Requirement
Matter
insoluble in
hot alcohol
Basic Limit 1.25%
Relaxed Limit 1.50%
Optional
Requirements
Color Index 18 Max.
Rosin & Orpiment Normally free from Rosin &
Orpiment except when a
specified Percentage is agreed
between buyer & seller
Volatile Matter Not more than 2%
Matter Soluble in water 0.5% Max.
Ash 0.3%
Wax Not more than 4.5%
Flow As agreed between Buyer & seller
Heat polymerisation As agreed between Buyer & Seller Usually at temperature of 150° c
Acid Value As agreed between Buyer & seller
Lead Content As agreed between Buyer & seller
Iodine Value As agreed between Buyer & seller