Animal glue is one of the oldest natural adhesives, made from collagen extracted from animal hides, bones, and tissues. This traditional glue is still used today in woodworking, musical instrument making, bookbinding, and antique restoration because of its strong bonding properties and unique reversibility.
How Is Animal Glue Made?
The production of animal glue involves:
- Sourcing raw material—usually hides, bones, or tendons from cattle or fish.
- Extraction – heating the material in water to extract collagen.
- Purification—removing impurities and excess water.
- Drying—the glue is cooled, dried into sheets or granules, and then packaged.
Top Uses of Animal Glue
1. Woodworking
Animal glue creates strong, durable joints in furniture, cabinets, and musical instruments.
2. Bookbinding
Its flexibility makes it ideal for attaching book covers and repairing old manuscripts.
3. Antique Restoration
Because animal glue is reversible (softens with heat or moisture), it’s perfect for restoring valuable antiques without damage.
4. Gilding & Art Projects
Used as a sizing agent for applying gold leaf and in traditional painting techniques.
Benefits of Using Animal Glue
- Strong Bonding – Excellent adhesion for wood, leather, and paper.
- Reversible – Can be softened and adjusted with heat or moisture.
- Eco-Friendly – Made from natural by-products, biodegradable.
- Non-Toxic – Safe for use in furniture and restoration work.
Safety Precautions When Using Animal Glue
- Work in a well-ventilated area when heating glue.
- Avoid inhaling fumes during the melting process.
- Wear heat-resistant gloves to prevent burns.
- Store in a cool, dry place to avoid spoilage.
FAQs
Q1: Is animal glue waterproof?
No, animal glue is not waterproof. It can be weakened by prolonged exposure to moisture.
Q2: Can animal glue be used for outdoor furniture?
It’s best for indoor projects. For outdoor furniture, use weather-resistant adhesives.
Q3: What’s the shelf life of animal glue?
Granules or sheets can last several years if stored properly in a cool, dry place.