Bone Glue (National Standard GOST 2067-93)
Bone glue is a protein adhesive of animal origin.
Bone Glue Production
Bone glue is obtained by extraction of gluten from defatted cattle bone.
Types of Bone Glue:
- granulated glue
- flake glue
- crushed glue
- glue jelly
Brands of Bone Glue:
According to product properties it subdivides into the following brands: К3,5; К3,0; К2,5; К2,2; К2,0
Physical and Chemical Features:
- appearance: granules, globules, powdered particles, glue jelly
- color: from light yellow to dark brown
- particle size
- granulated glue: 2-5 mm;
- flake glue (powder with particle size: 0,2 mm; 0,5 mm).
- crushed glue: globules with particle size not above 3 mm.
- moisture content, %, not above:
- granulated glue: -17;
- flake glue: - 8;
- crushed glue: -11;
- glue jelly: -59.
- viscosity, degree (Engler), not less: 2,0; 2,2; 2,5; 3,0; 3,5;
- bond quality, mPa (kgf/cm2 ): 7,5-10 (75-100).
- common fat weight ratio, %, not above: 3,0 (bone glue for match industry: not above 0,4).
- anti-decay solution persistency, days, up to 6.
- foam formation, cm3 , up to 20-50 (for different brands).
Use of Bone Glue:
- surface bonding in wood-working, paper and furniture trade;
- bookbindery;
- printing industry;
- household use as carpenter’s glue;
- match industry; glue is included as a compound of incendiary mixture and it is used for adhesion of matchboxes.
- abrasive goods industry and zinc-coating.
- blend additive for screed floors, brick glue, filler pastes, premixed plasters and furring additives, for grouting and gypsum blocks production.
- artificial (molding) marble production.
- foam agent production.
Principle of Solubility:
Add a weight part of water to a weight part of bone glue, mix and hold at a temperature of 18-24 0С during 2-3 hours for swelling. Heat to 75 0С in water bath until fully dissolved.
Packing
Bone glue packed in polypropylene big bags with the following net weight:
- granulated glue: 25 kg
- flake glue: 15 kg
- crushed glue: 25 kg.
Glue jelly packed in polypropylene big bags with polyethylene liner, net weight from 5 to 20 kg.
Period of Storing:
Flake bone glue: - 12 months.
Granulated bone glue - 18 months.
Crushed bone glue: - 18 months.
Glue jelly: - 2 months from the day of production.