Do you want to learn more about Sealing Wax?

First, What is Sealing Wax

Sealing Wax is a kind of adhesive, which is slightly different from the special adhesive of glue and paste. Stationery is often used, even in daily use, such as all important documents to avoid unauthorized dismantling, and seal a thing, etc., must be used the Sealing Wax. The finished product of the varnish is a strip-shaped object, which is not easy to be damaged, so it can be sold regardless of the packaging. Packages are divided into twenty strips or a dozen individually wrapped for sale.

Properties: The gray-brown solid block is called natural Sealing Wax, and the red solid block is called red Sealing Wax. In addition, "fire lacquer" refers to the copper coins cast with Erhuo copper in the Ming Dynasty.

Second, the Sealing Wax formula

Rosin 60g, shellac 20g, artificial Venetian rosin 20g. The preparation method is to first place the rosin and shellfish film in a magnetic dish or a copper utensil (do not use iron utensils to prevent deterioration), heat it until it is completely melted, slowly add artificial rosin, remove the fire and wait for it to condense on its own. If you want to color, when it cools to an appropriate temperature, add the coloring material and stir evenly, then pour it into the mold to make it coagulate, and take it out after it is all solidified.

The coloring of Sealing Wax only needs to add pigments that can dissolve in grease. The commonly used pigments for varnish are red and black, red is silver vermillion, and black is lamp coal. The amount of pigment is about 25% of the Sealing Wax.

Third, Raw materials for Sealing Wax

1. Rosin: Rosin is a kind of oil that permeates the trunk and bark of coniferous plants and other pine plants. After drying, it becomes a light yellow brittle block. The cracked surface is striped, and the fragrance is quite similar to turpentine. It is insoluble in water but can be dissolved in alcohol, ether, ketone and glacial acetic acid and is transparent. It can also be dissolved in chloroform and become cloudy. If it burns, it will emit thick smoke. The melting point of rosin is soft and low, and the weather is slightly hot, that is, it is easy to melt. If the volatile turpentine oil contained in it is removed by distillation, a transparent amber-colored brittle block can be obtained, which is a commercially available transparent rosin. Rosin scientific name resin.

2. Insect film: A small insect on the banyan tree pierces the gum flowing out of the bark to protect itself.

Shellfish film is a yellow-brown or red-brown transparent crisp, insoluble in water, soluble in hot alcohol, potassium hydroxide solution, sodium hydroxide solution, and borax solution, and can be melted after a little heating.

3. Artificial Venetian turpentine: It is a man-made product. It consists of 62.5 parts of rosin and 22.5 parts of sesame oil in a pot. It is heated and melted with direct fire. After melting, remove the fire and add 15 parts of turpentine oil. Stop stirring.

4. Silver Vermilion is red mercury sulfide, and lamp coal is soot.