High-Quality Natural Rosin Block Solder Welding Instrument Non-Slip Pine Gum Yellow Rosin Handmade Soap Material

Model Number: 89852
Weight: 500g
Material: Rosin

Rosin refers to a kind of rosin, which can be obtained from many kinds of pine trees. The rosin is collected in the form of harvesting.
The rosin refined during processing is called gum rosin.
Application: Industrial/Flux/Stringed instruments, etc.
Solubility: insoluble in water, soluble in alcohol

Rosin has different effects in different fields:

1. In life:

(1) The tip of the soldering iron can be cleaned with rosin when using an electric soldering iron.

(2) For paintings drawn with charcoal pen and carbon stick, a certain proportion of rosin mixed with alcohol will be sprayed on the painting as a setting solution.

(3) People who play the qin, such as playing the erhu, often use rosin to rub the strings.

2. Soap industry

Rosin is cooked with soda or caustic soda to form rosin soap. Rosin soap has great detergency, is easily soluble in water, can dissolve grease, and is easy to foam. Rosin is sticky and makes soap less prone to cracking and rancidity.

3. Paper industry

Rosin and caustic soda are made into rosin sodium soap, that is, sizing material. The sizing material is mixed with pulp and alum is added to make rosin become water-insoluble free resin acid particles attached to small fibers.

4. Paint and coating industry

Rosin is easily soluble in various organic solvents, and is easy to form a film and has a luster. It is one of the basic raw materials for paints and coatings. The role of rosin in paint is to make the paint bright, dry quickly, and the paint film is smooth and not easy to fall off.

5. Ink industry

Rosin is mainly used as a vehicle in printing inks and enhances the adhesion of inks to paper. If rosin is not used in the ink, the printed ink will be dull and blurry.

6. Adhesive industry

Adhesives based on rosin esters and hydrogenated rosin esters are commonly used as hot melt adhesives, pressure sensitive adhesives and rubber tackifiers.

The effect of rosin:

1. Rosin is often used as tackifying resin in hot melt, pressure-sensitive and solvent-based adhesives to increase initial tack and bond strength.

2. Rosin soap formed by cooking together with soda ash or caustic soda has great detergency, is easily soluble in water, can dissolve grease, and is easy to foam, which can make the soap not easy to crack and rancid.

3. Rosin and caustic soda are made of rosin sodium soap, which can enhance water resistance, prevent ink penetration, improve strength and smoothness, and reduce stretch.

4. Rosin is easily soluble in various organic solvents, and is easy to form a film and has a luster. It is one of the basic raw materials of paints and coatings.

5. Rosin is mainly used as a vehicle in printing ink, and enhances the adhesion of ink to paper.

6. Adhesives based on rosin ester and hydrogenated rosin ester are commonly used as hot melt adhesives, pressure sensitive adhesives and rubber tackifiers.

7. Rosin is used as a softener in the rubber industry to increase its elasticity. Disproportionated rosin potassium soap can be used as synthetic rubber.

Properties and uses: Rosin is a kind of natural resin, mainly composed of various resin acids. It is soluble in ethanol, ether, acetone, toluene, carbon disulfide, gasoline, oil and alkaline solutions. It has unique chemical activity, so it is soap, Important raw materials for papermaking, coatings, rubber, resin, electrical appliances, organic synthesis and other industries

Storage conditions:
This product should be stored in a dark, dry and cool place, protected from rain and sun, and should not be mixed with other contaminated stains for storage or shipment. This product is fragile and fixed. It is easy to produce powder during production and handling, and does not affect use. Under heavy pressure and high temperature, it is prone to slumping, discoloration, and affect the taste.

Friendly reminder: Rosin is a fragile product, and we always pick it into lumps when shipped, but! However, during the express delivery process, it will inevitably be bumped and dropped. The rosin received has a block and powder, which is a normal phenomenon. . If you need a block, you can take a pot and heat the rosin; after the rosin cools, it will become a block.