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Client Duong Do dinh - (0986444xxx) bought 8 month ago (24/11/2025)
Client Duong Do dinh - (0986444xxx) bought 8 month ago (24/11/2025)
Client Duong Do dinh - (0986444xxx) bought 8 month ago (24/11/2025)
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Fomblin® Y LVAC 25/6

(1 evaluate)

Category: Fomblin® Y

Maker: Syensqo

Made in: Italy

Packaging: 1kg, 5kg

Shipping: We provide door-to-door worldwide shipping services using UPS or FedEx

Email: Info@hicotech.com.vn

Product code : Fomblin® Y LVAC 25/6

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Highlights of Fomblin® Y LVAC 25/6

Fomblin® Y L VAC 25/6

Fomblin® Y LVAC 25/6 is a high-viscosity perfluoropolyether (PFPE) fluid developed for lubricating and sealing compatible mechanical vacuum pumps. Its extremely low vapor pressure, chemical inertness, non-flammability and resistance to aggressive gases make it suitable for demanding vacuum processes where conventional hydrocarbon oils may degrade or contaminate the system.

Key Features and Process Benefits

Key feature	Process benefit
Extremely low vapor pressure	Helps reduce lubricant evaporation and backstreaming into the vacuum chamber.
High chemical inertness	Resists many corrosive, oxidizing and reactive process gases.
High-viscosity PFPE fluid	Supports effective lubrication and sealing in compatible mechanical vacuum pumps.
Non-flammable	Has no flash point or fire point under standard test conditions, helping reduce lubricant-related fire risks.
Thermal and oxidative stability	Helps minimize oil degradation, sludge, varnish and carbonaceous deposits.
Low evaporation loss	May reduce lubricant consumption and extend fluid replacement intervals in suitable applications.
Resistance to aggressive gases	Supports reliable operation in chemical, semiconductor and industrial vacuum processes.
Low hydrocarbon contamination	Helps maintain cleaner vacuum chambers and contamination-sensitive production processes.
Good material compatibility	Compatible with many metals, plastics, elastomers, glass and ceramics used in vacuum systems.
High dielectric properties	Suitable for electrically sensitive and high-technology manufacturing environments.
Stable lubricant performance	Helps maintain consistent pump operation under demanding process conditions.
Potentially longer maintenance intervals	Reduced oxidation and chemical degradation may lower maintenance requirements.

Technical Properties

The following values are typical reference properties and should not be treated as guaranteed specification limits.

Property	Typical Value	Unit	Test Condition
Chemical type	PFPE	—	Perfluoropolyether
Physical form	Liquid	—	—
Average molecular weight	3,300	amu	Typical
Density	1.90	g/cm³	At 20°C
Kinematic viscosity	276	cSt	At 20°C
Viscosity index	113	—	Typical
Vapor pressure	6 × 10⁻⁸	torr	At 25°C
Vapor pressure	6 × 10⁻⁵	torr	At 100°C
Pour point	−35	°C	Typical
Surface tension	22	dyne/cm	At 20°C
Heat of vaporization	7	cal/g	At 200°C
Evaporation loss	0.6	wt.%	22 hours at 149°C
Flash point	None	—	Standard test conditions
Fire point	None	—	Standard test conditions

Fomblin® Y LVAC Series Comparison

The Fomblin® Y LVAC family includes several viscosity grades developed for different mechanical vacuum pump designs and operating conditions.

Property	Fomblin® Y LVAC 06/6	Fomblin® Y LVAC 14/6	Fomblin® Y LVAC 16/6	Fomblin® Y LVAC 25/6
Average molecular weight, amu	1,800	2,500	2,700	3,300
Density at 20°C, g/cm³	1.88	1.89	1.89	1.90
Kinematic viscosity at 20°C, cSt	64	148	168	276
Viscosity index	71	97	110	113
Vapor pressure at 25°C, torr	8 × 10⁻⁷	1 × 10⁻⁷	2 × 10⁻⁶	6 × 10⁻⁸
Vapor pressure at 100°C, torr	3 × 10⁻³	2 × 10⁻⁴	2 × 10⁻⁴	6 × 10⁻⁵
Pour point, °C	−50	−45	−45	−35
Surface tension, dyne/cm	21	22	22	22
Evaporation loss, wt.%	2.8	2.6	3.9	0.6

Common Applications of Fomblin® Y LVAC 25/6

Mechanical and Rotary Vacuum Pumps

Fomblin® Y LVAC 25/6 can be used as a lubricating, sealing or working fluid in compatible oil-sealed mechanical vacuum pumps.

Its viscosity helps form an effective sealing film between moving components while supporting lubrication of bearings, vanes and other internal pump surfaces.

Semiconductor Manufacturing Equipment

Semiconductor manufacturing processes often require clean vacuum environments and may use reactive or corrosive gases.

Fomblin® Y LVAC 25/6 may be used in compatible vacuum pumps supporting processes such as:

Plasma etching
Chemical vapor deposition
Physical vapor deposition
Ion implantation
Wafer processing
Vacuum chamber evacuation
Electronic-component production

Its low vapor pressure helps reduce lubricant backstreaming, while its PFPE chemistry provides resistance to many aggressive process gases.

Electronics and High-Technology Manufacturing

Vacuum equipment used in electronics manufacturing may be sensitive to hydrocarbon contamination and lubricant deposits.

Fomblin® Y LVAC 25/6 can support cleaner vacuum operation in suitable equipment used for electronic components, displays, sensors, optical devices and advanced-material production.

Chemical Processing Vacuum Systems

Vacuum pumps used in chemical plants may be exposed to acids, alkalis, halogens, oxidizing agents and reactive solvents.

Conventional vacuum pump oils can degrade rapidly in these environments. The chemical inertness of Fomblin® Y LVAC 25/6 can help improve lubricant stability and reduce deposit formation.

Oxygen and Oxidizing-Gas Service

PFPE fluids are frequently considered for systems handling oxygen and strongly oxidizing gases because they are non-flammable and resistant to oxidation.

However, changing to Fomblin® Y LVAC 25/6 does not automatically make a pump suitable for oxygen service. The equipment must be properly cleaned, degreased and approved for the intended oxygen concentration, pressure and operating temperature.

Clean and Contamination-Sensitive Vacuum Systems

The low volatility of Fomblin® Y LVAC 25/6 helps minimize lubricant migration into process chambers.

This characteristic can be beneficial in analytical instruments, laboratory vacuum equipment, research systems, optical coating equipment and other applications where hydrocarbon contamination must be controlled.

Pharmaceutical and Laboratory Vacuum Systems

Pharmaceutical manufacturing and laboratory processes often require reliable vacuum performance, chemical resistance and low contamination.

Fomblin® Y LVAC 25/6 may be considered for compatible vacuum pumps used in freeze drying, vacuum drying, filtration, solvent recovery and analytical equipment, subject to equipment and process requirements.

Food-Processing Vacuum Equipment

Fomblin® Y LVAC 25/6 may support certain applications in food-processing environments when the relevant NSF registration category and applicable conditions are satisfied.

Users must verify the current registration status, usage limitations and equipment-manufacturer recommendations before implementation.

Certificate of Analysis (COA) for Fomblin Y LVAC 25/6

FAQ

1. What is Fomblin® Y LVAC 25/6 used for?

It is used as a lubricating, sealing or working fluid in compatible mechanical vacuum pumps, particularly in systems exposed to aggressive gases, oxygen or contamination-sensitive processes.

2. Is Fomblin® Y LVAC 25/6 flammable?

No. Fomblin® PFPE fluids have no flash point or fire point under standard test conditions.

3. Can Fomblin® Y LVAC 25/6 be used in every vacuum pump?

No. Fluid viscosity, pump design, internal clearances, seals and operating temperature must be compatible with the product. Always confirm the pump manufacturer’s recommendations.

4. How should Fomblin® Y LVAC 25/6 be stored?

Store Fomblin® Y LVAC 25/6 in its original, properly labelled and tightly closed container. Keep it in a clean storage area away from heat, ignition sources, combustible materials and incompatible products.

5. How long does Fomblin® Y LVAC 25/6 last?

When stored unopened under suitable conditions, Fomblin® PFPE fluids have a reported shelf life of more than 20 years. In a vacuum pump, there is no fixed replacement interval; service life depends on operating temperature, process gases, contamination, pump condition and maintenance practices.