STIFF RUBBER BITUMEN
The ingredients Vacuum Bottom (VB) and Vacuum Silabes (VS) are aerated in bitumen production reactors at a certain pressure and temperature (200-300 °C), promoting reactions between the hydrogen atoms in the bitumen and oxygen from the air to produce heavier hydrocarbons—with a lower penetration grade and a higher softening point than the original untreated bitumen—through polymerization. Such bitumen features a softening point of 85 and a penetration of 25.
Application: Coating the bottom of water channels, covering up the cracks and filling the fissures on concrete structures, other construction applications, producing moisture insulation.
|Penetration 1/10mm||ASTM D 5||35||45|
|Softening Point ºc||ASTM D 36||80||90|
|Ductility @25ºc cm||ASTM D 113||20|
|Loss on heating wt%||ASTM D 6||0.2|
|Drop in Penetration %||ASTM D 5||20|
|Flash Point ºc||ASTM D 92||250|