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ストレートアスファルト
Straight asphalt, also known as bitumen, is produced by oil refining. It has high ductility, low softening point, and high adhesive force. Because of the character, it is mainly used for road pavement.
It is a residual substance of solvent deasphalting which made under the process of reduced pressure distillation and lubricating oil production. It is included a lot in naphthenic base petroleum and mixed basis petroleum. It is sticky, black and high viscous semi-solid. It turns into liquid state gradually when it is heated. Because the original petroleum of asphalt is different for each asphalt producer, the property of asphalt is also slightly different for each company.


[Main Suppliers]
Cosmo Oil, Showa Shell Oil, JX Nikko Nisseki energy and others

[Oil Classes]
Straight Asphalt 60-80, 80-100, 150-200
*the number is penetration.

[Place of Shipment]
Chiba, Yokkaichi, Sakai, Sakaide, Hachinohe, Shiogama, Onahama, Niigata, Kanazawa, Hiroshima and others

[Use]
Road pavement, waterproofing materials


ストレートアスファルト ストレートアスファルト ストレートアスファルト


We deliver straight asphalt to the required destination and on required time by fair price.
Please, call now!



天然・ブローンアスファルト
Natural asphalt is petroleum which exuded on the surface of the earth. It is oxidized and lost the light quality substance during long time by being exposed to wind and rain.
It is black solid, and turns into liquid state gradually when it is heated like straight asphalt.

The ingredient of natural asphalt is mainly composed of very complicated polycyclic compounds.

[Place of Origin]
Asia, Middle East, North America, South America, Northern Europe

<American Gilsonite>
Please refer to American Gilsonite part of the ink materials page.

その他アスファルト(海外品) その他アスファルト(海外品) その他アスファルト(海外品)
There are more oil raw materials in the world.
We have various raw materials like blown asphalt and natural asphalt from all over the world .

If you are looking for new or cheaper raw materials, Please call us now.
We will arrange samples according to your requests.
3-2-2, Kudankita, Chiyoda-ku, Tokyo 102-0073 Japan
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