About Our Products:
Sticklac is first crushed and sieved to remove sand and dust. It is then washed in large vats again and again and at the same time rubbing the lac against the sides of the Vat to break open the insect bodies and dissolving the colouring matter in water. The lac thus cleaned is spread on large, clean, open air floor to dry. After drying, it is winnowed and sieved to get the com
mercial variety of Seedlac. Seedlac is mostly used for conversion into Bleached Shellac and different types of Shellac. Seedlac is converted into Shellac either by traditional hand made process or comparatively modern machine made process. HANDMADE SHELLAC……
Seedlac is converted into Shellac either by traditional hand made process or comparatively modern machine made process. Hand made shellac is produced by properly blending Seedlac into long narrow cloth bag and heating one end over charcoal fire and the other end is attached to a windless and is gradually twisted. The heat produced by the charcoal fire melts the lac which is forced out through the cloth by pressure. The molten lac is scraped out and drawn into sheets manually and left to dry. This process requires considerable manual skill and long experience. USES OF SHELLAC
Due to versatility of lac resin, it finds innumerable uses both in industries fields. On the stand point of industrial uses of shellac one or more of the following properties are of great importance :
Shellac dissolves in a wide variety of alkaline or rapidly drying alcoholic solvents but is resistant to a number of other solvents particularly hydrocarbons. Its film shows excellent adhesion to a wide variety of surfaces, possessing high gloss, hardness and strength. Shellac is powerful bonding material with low thermal conductivity and a small coefficient of expansion. Its thermal plasticity and capacity of absorbing large amounts of filters are noteworthy. Its electrical properties include high dielectric strength, low dielectric constant and characteristic freedom from tracking. It is resistant to the action of ultraviolet rays. Some of the main uses of shellac in different fields are :
Surface coating – As under coat, primer, sealer French, Polish, Leather dressing, Fruit Coating etc. Printing – Flexographic ink, Waterproof ink, Photo engraving. Textiles – Stiffening of hats. Cosmetic & Pharmaceuticals – Hair lacquer, coating for Enteric pills, Dental base place. Engineering – Grinding wheels, Rivet & Plaste sealer. Electrical – Micanite, Insulating Varnish. Photography – Dry mounting tissue paper, protective varnish. Paper – Paper varnish, playing cards. Rubber – Stiffening agent, surface finish. Adhesive – gasket cement,sealing wax, pyrotechnic Optical Cement.