Bone Glue - Natural Protein Adhesive
Chemical Information:
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CAS No.: 9000-70-8
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EINECS No.: 232-554-6
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Appearance: Light yellow to brownish flakes or granules
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Solubility: Soluble in hot water
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Viscosity: Customized upon request
INTRODUCTION:
Bone glue is one of the most widely used animal-based adhesives. Due to its bead-like appearance, it is also known as Bead Bone Glue. Its characteristics include strong adhesion, high bonding strength, low moisture content, fast drying, and excellent setting performance. In addition, it is inexpensive and easy to use, making it especially suitable for binding and pasting hardcover book covers. Thus, excellent results will be received after you use it.
GRADE
| LEVEL |
SPECIAL |
FIRST CLASS |
SECOND CLASS |
THIRD CLASS |
GEL STRENGTH (g)
COLOR |
≥200
GOLDEN YELLOW |
≥170
GOLDEN YELLOW |
≥150
BROWNISH YELLOW |
≥130
REDDISH YELLOW |
THE PROPERTIES OF BONE GLUE
The main component of animal glue is gelatin peptide protein. The lower purity form of this substance is commonly referred to as bone glue. Bone glue typically appears as a brittle, hard, solid block.
Collagen, the original protein, is insoluble in water. However, after undergoing processes such as heating, it transforms into another form of protein known as gelatin, which is soluble in hot water and owns adhesive properties.
Once dried, the bone glue film becomes firm and highly elastic. However, bone glue has certain limitations as well:
- It is not water-resistant; exposure to water causes the adhesive layer to swell and lose bonding strength.
- It has poor corrosion resistance; excessive heat or high humidity can lead to degradation and changes in its adhesive properties.
APPLICATIONS
- As an Adhesive
Bone glue is widely used in various industries due to its strong bonding properties. It is commonly used in the adhesion of pencils, abrasive cloth, sandpaper, as well as for gluing wood products and binding books. Its excellent adhesion and ease of use make it ideal for these applications.
- Printing Plate-Making and Metal Emblems
Bone glue is also employed in printing plate-making and the manufacturing of metal nameplates and emblems. By adding dichromate to the bone glue solution and applying it to a metal surface, an insoluble thin film will be created after the coated layer is dried and exposed to light, while the unexposed parts remain water-soluble and can be washed away, enabling etching for the creation of printing plates.
- Electroplating Additive
Bone glue can be used as an electroplating additive. A small amount of bone glue added to the electroplating bath enhances the brightness and smoothness of the plated surface.
- Sizing Agent
Bone glue is utilized as a sizing agent in the paper and textile industries. Straw hats can become resistant to deformation and waterproof if the bone glue is applied and treated with formaldehyde afterwards.
- Coagulant Aid
Bone glue is a natural animal glue, also known as a chain-like natural natural polymeric substance. It is primarily composed of protein with a molecular weight range of 3,000 to 80,000 and water soluble. Bone glue promotes the aggregation of destabilized colloidal particles through adsorption and connection establishment after being added in to water. When bone glue is used in combination with aluminum salts or iron salts, excellent coagulation effects can be seen.
Important Notes:
- When heating the glue, the temperature should not exceed 100°C, as overheating may cause molecular degradation, resulting in reduced viscosity and glue aging.
- Bone glue may have slight sediment while using, so it is important to stir regularly when water is being added, in order to maintain the desired viscosity and flowability.
- It a must to use water bath method to heat the glue; never heat the container directly that holds the glue.
- Bone glue should be used at a specific temperature range (around 75°C ± 10°C). When adding water while using it, we have to ensure that the temperature of the water and glue solution are roughly the same. Add cold water is not allowed, as this will lead to the formation of gelled lumps because of a rapid temperature drop, which negatively affects the adhesive performance.
Packaging & Transportation
- Packaging: 25 kg kraft paper bags with inner PE liner. Customized small packaging
available.
- Storage Conditions: Store in a cool, dry, and well-ventilated area. Avoid exposure to
moisture and sunlight.
- Shelf Life: 12 months under proper storage conditions.
- Transportation: Handle with care. Shippable by land, sea, or air. Not hazardous material
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