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One Bridge Plaza North,Fort Lee,New Jersey,USA

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Premium DC-705 Diffusion Pump Oil Equivalent by ECO USA



( Negotiable ) Get Latest Price



10 Gallon

ISO-9001 Certified Packaging Process. Bottles or containers, depending on volume.

14 - 20 days

800 Gallon per Day

PayPal, D/P, D/A, L/C, T/T


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Product Specification

International Shipping : FREE Color : Clear Hazardous Ingredients : None Shelf Life : 5 Years

Product Description

ECO-705 Diffusion Pump Oil 

Our ECO-705 has an identical chemical profile and quality as the the DC-705, by Dow Corning. Since Dow Corning stopped its manufacturing of diffusion pump oil back in 2012, there are no actual DC-705 left on the market. However, our customers claim that ECO-705 is the perfect replacement for DC-705. With its superior single component formula of Penta phenyltri-methyltrisiloxane. The ECO-705 is the most powerful and durable diffusion pump oil on the market, it offers the highest vacuum and can withstand rough conditions, so perfect for heavy industrial use.     

FREE International Shipping

Unlike most manufacturers, we are able to offer free international shipping. This is due to the way we work with our manufactureres and the fact that we have warehouses in both America and Asia. 

ECO-705 Specifications

By using a high-quality diffusion pump oil, you will achieve a more powerful vacuum as well as long durability. ECO-705 is a silicone-based diffusion pump oil that we stand behind with all honesty and that is also why we have 100% customer satisfation. Below are the technical specifications:

Molecular Description Penta phenyltri-methyltrisiloxane
Color Clear 
Ultimate Vacuum (untrapped) 10E-9 to 10E-10 torr
Ultimate Vacuum (trapped) up to 10E-11 torr
Extrapolated Vapor Pressure 3x 10E-10 torr
Specific Gravity at 25ºC 1.09
Viscosity at 25ºC 175 cSt
Flash Point (open cup) 243ºC
Boiling Point (at 0.5 torr) 245ºC
Typical Boiler Temperature  250ºC - 270ºC
Surface Tension 36.5 dynes/cm
Heat of Vaporization (kcal/g mole) 28.2/250ºC
Hazardous Ingredients None
Shelf Life 5 Years


Contact Us

Contact Person : Jordan

Company:ECO USA

Address:One Bridge Plaza North, Fort Lee, New Jersey, USA,07024


Jordan < ECO USA >
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