Natural Pine Rosin - Gum Resin (Nuggets) Colophony - 1000g-5000g

Application:

• in the pharmacy recipe - a remedy component
• flux during soldering with lead-tin alloy
• rubbing the bristles of strings in string instruments to increase bristle roughness and its grip on strings
• formerly used by handballs to lubricate the hand in order to improve the grip of the ball
• binder in polygraphic paints improving the paint's smeared properties,
  a component of varnishes, varnishes, soaps, sealing wax, plastics, rubber
• used by dancers to obtain high adhesion of ballet shoes or other footwear to the ground
• dissolved in alcohol - as a varnish to protect against oxidation and to facilitate the soldering of printed circuit boards made using the home method

Please note: rosin is sold in lumps, however, because of the fragility of the material, the pack may contain 5-10% of rosin powder or smaller particles.

Solid Crystals Rosin

• Rosin is brittle and friable, with a faint piny odour. It is typically a glassy solid, though some rosins will form crystals. The practical melting point varies with different specimens, some being semi-fluid at the temperature of boiling water, others melting at 100 °C to 120 °C. It is very flammable, burning with a smoky flame, so care should be taken when melting it. It is soluble in alcohol, ether, benzene and chloroform.
• Gum Rosin is the dried natural pine resin from the sap residue of pine trees. Gum Rosin is known by many different names:  Pine Gum Rosin, Pine Resin, Greek Pitch, Venice Turpentine, Burgundy Pitch, Colophony, and Elemi.
  
• Gum Rosin can be made into a powder to increase grip, it is used by Tug of War Teams, Gymnasts, Weight Lifters, Pole Vaulters, Tennis and Table Tennis bats, Badminton Rackets and on Baseball Pitchers etc.
  
• The type of rosin used with bowed string instruments is determined by the diameter of the strings. Generally, this means that the larger the instrument is, the softer the rosin should be. For instance, double bass rosin is generally soft enough to be pliable with slow movements. A cake of bass rosin left in a single position for several months will show evidence of flow, especially in warmer weather.