Specification division of natural rubber
Release time:
2020-04-11
Specification division of natural rubber
Natural rubber can be divided into standard glue (also known as granular glue), tobacco film, concentrated glue, white crepe film, light color film, rubber clear rubber and air dry film, etc. The most commonly used are standard glue and tobacco film. The standard glue is divided into four grades: grade 1 (SCR5), grade 2 (SCR10), grade 3 (SCR20) and grade 4 (SCR50), and the tobacco glue is divided into five grades: 1~5 tobacco film (RSS1 ~ RSS5).
Standard rubber: Standard rubber is mainly divided into 5, 10 and 20 glue. No. 5 glue is the first-class glue, which is the best glue, and its impurities are 0.05%; No. 10 glue is the second-class glue, and its impurities are 0.10 %; No. 20 glue is the third-class glue, and its impurities are 0.20 %. Different types of rubber are also used differently: No. 5 rubber is generally used to make tire inner tubes; No. 10 rubber and No. 20 rubber are generally used to make tire casings.
Tobacco film: The film obtained by smoking and baking natural film that has been pressed to remove moisture with the smoke and heat of burning coconut shells. The purpose of smoking is to dry the film and inject anti-oxidation and anti-corrosion cresol substances. Tobacco film belongs to the primary shape of natural rubber
Concentrated glue: can be used as bonding material.
Crepe Film:
Special Grade Thin White Crepe Film
The goods delivered must be extremely white and uniform, dry, solid rubber.
No discoloration, sour odor, dust, chips, grit or other foreign matter, oil or other smudges, signs of oxidation or overheating due to any cause are permitted.
First grade thin white crepe film
The goods must be white, dry, solid rubber. Minimal differences in shades of color are allowed.
No discoloration, sour odor, dust, chips, grit or other foreign matter, oil or other smudges, signs of oxidation or overheating due to any cause are permitted.
Special Grade Thin Light Crepe Film
The goods must be very light color and uniform, dry, solid rubber.
No discoloration, sour odor, dust, chips, grit or other foreign matter, oil or other smudges, signs of oxidation or overheating due to any cause are permitted.
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