Description

Kauri Gum is a natural, fossilized resin derived from the ancient Kauri trees (Agathis australis) of New Zealand. This unique material is valued for its exceptional clarity, hardness, and solubility in organic solvents, making it a premium ingredient for specialized industrial applications. It is particularly sought after by manufacturers in the varnish, lacquer, specialty coatings, and restoration sectors where its distinctive properties enhance product performance and authenticity.

Application

• Varnish and Lacquer Formulation: A key component in high-quality, traditional spirit varnishes for musical instruments and fine furniture, prized for its fast-drying and hard-finishing characteristics.
• Specialty Coatings: Used in artist-grade paints, conservation coatings, and protective finishes where optical clarity and historical accuracy are paramount.
• Adhesives and Sealants: Serves as a tackifier and binding agent in specialty adhesives for niche industrial and artistic applications.
• Printing Inks: Employed in the formulation of certain specialty printing inks to improve gloss, rub resistance, and drying time.
• Cultural Restoration: Critical for the authentic restoration and conservation of antique furniture, artwork, and historical artifacts.
• Pharmaceuticals (Excipient): Historically used and may find application as a glidant or binding agent in certain traditional pharmaceutical preparations.

Basic Information

Product Name	Kauri Gum
CAS No.	77465-88-4
Molecular Formula	Complex natural resin mixture (primarily diterpenoid acids)
Molecular Weight	N/A (Natural polymer mixture)
Synonyms	Kauri Copal; Kauri Resin; New Zealand Kauri Gum; Agathis australis Resin; Fossil Kauri Resin; Copal (Kauri); Manawa Gum; Dammar (substitute); Colophony (related); Gum Kauri
EINECS	Contact for details

Quality Control

Our Kauri Gum is sourced and processed to meet the stringent requirements of specialty industrial users. Quality is assured through batch-specific analysis for key parameters such as color, solubility, acid value, and softening point. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to ensure traceability and consistency for your formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong heat sources and open flames.

Specification

Item	Specification
Appearance	Pale yellow to amber lumps or powder
Identification (IR)	Conforms to standard
Solubility (in ethanol)	Completely soluble
Acid Value	Contact for details
Softening Point	Contact for details
Loss on Drying	< 2.0%
Ash Content	< 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.