Galden SV 80

What Is Galden® SV 80?

Galden® SV 80 is a low-molecular-weight perfluoropolyether (PFPE) solvent formulated for precision cleaning, equipment flushing, degreasing and the processing of fluorinated lubricants. Its nominal boiling point of 80°C provides a practical balance between the very rapid evaporation of Galden® SV55 or SV70 and the longer working time of higher-boiling grades such as SV110 and SV135.

With low viscosity, low surface tension, non-flammable behavior and full miscibility with PFPE oils and greases, Galden® SV80 is particularly relevant to engineers responsible for semiconductor equipment, vacuum systems, precision electronics and high-value industrial components.

Key Features and Process Benefits

Syensqo lists high purity, low moisture absorption, dielectric behavior, non-flammability, chemical resistance and thermal stability among the product functions of Galden® SV80. These characteristics can support cleaning processes where contamination control, material protection and production safety are critical.

The combination of low viscosity and relatively low surface tension is especially useful for flushing small pump passages, valve cavities, bearing housings, threaded features and other difficult-to-access areas. Its moderate volatility can also make SV80 easier to control than SV55 in short-duration cleaning operations.

Nevertheless, evaporation losses must be considered. Repeated-use processes may benefit from enclosed cleaning tanks, covered rinse stations, cooling coils, vapor-condensation zones and compatible solvent-recovery systems. These measures can help stabilize bath condition, reduce consumption and improve process repeatability.

Syensqo reports compatibility of Galden® PFPE fluids with a range of metals, plastics and elastomers. However, material compatibility depends on the complete formulation of seals, hoses, adhesives and polymer components, as well as exposure temperature and duration. Testing the actual production materials remains necessary before approving a new process.

Technical Properties

The following values are typical properties published in the manufacturer’s Galden® SV technical literature. They describe expected product behavior but are not guaranteed purchasing specifications.

The viscosity of 0.57 cSt allows SV80 to flow easily through small clearances and drain from precision components. Its vapor pressure of 62 torr at 20°C supports relatively fast solvent removal after cleaning without providing the extremely short contact interval associated with SV55.

For QA/QC purposes, these typical values should not automatically be converted into incoming-inspection limits. Procurement and quality teams should base acceptance requirements on the current Syensqo technical data sheet, safety data sheet, certificate of analysis and the factory’s validated process specification.

Useful process-control criteria may include fluid appearance, contamination level, water content, non-volatile residue, bath replacement frequency and final component cleanliness. The selected controls should reflect the sensitivity of the equipment and the risks associated with residual contamination.

Galden® SV Series Comparison

The most important parameters when selecting a Galden® SV grade are boiling point, vapor pressure, viscosity and surface tension. Lower-boiling grades generally provide faster evaporation and shorter drying cycles. Higher-boiling grades remain on components longer, providing greater working time and lower immediate evaporation loss.

The manufacturer’s legacy comparative SV table publishes complete numerical values for SV55, SV80, SV110 and SV135. Although Syensqo currently lists Galden® SV70 as a product, the public product page does not provide the same complete numerical property table. Engineers should therefore obtain the current grade-specific TDS rather than using values from Galden® HT70 or another product family as substitutes.

Galden® SVX should also be evaluated separately. Syensqo describes SVX as a high-performance inert PFPE fluid for heat-transfer and dielectric applications requiring thermal stability, chemical inertness and compatibility with metals, plastics and elastomers. It is not presented simply as another numbered cleaning-solvent grade.

For many precision-cleaning processes, SV80 offers the most balanced profile. It is appropriate when SV55 or SV70 evaporates too quickly, but the longer drying time of SV110 or SV135 is unnecessary.

COO for Galden SV 80

Common Applications

1. PFPE Oil and Grease Removal

Galden® SV80 is fully miscible with PFPE oils and greases, allowing it to dissolve and flush compatible fluorinated lubricant residues from machine parts, maintenance tools and lubrication components.

2. Vacuum-Pump and Vacuum-System Cleaning

SV80 can be evaluated for cleaning pump housings, valves, fittings, internal passages and vacuum components contaminated with PFPE lubricants. Manufacturer literature specifically identifies pump cleaning as an application of Galden® SV fluids.

3. Semiconductor Equipment Maintenance

Its high purity, low moisture absorption, chemical resistance and compatibility with fluorinated lubricants make SV80 relevant to qualified cleaning procedures for compatible semiconductor equipment parts. Final processes should be validated against particle, ionic and non-volatile-residue requirements.

4. SMT and Electronics Equipment Cleaning

SV80 may be evaluated for maintenance cleaning of compatible nozzles, sensors, actuators, mechanical assemblies and lubricant-handling parts in SMT equipment. It should not automatically be classified as a universal flux remover or assembled-PCB cleaner.

5. PFPE Lubricant Dilution and Thin-Film Application

SV80 may be used as a carrier or diluent for compatible PFPE oils and greases. Potential methods include dipping, spraying and controlled dispensing. Lubricant concentration, deposited film thickness and solvent evaporation must be validated for the component.

6. Degreasing and Trace-Residue Removal

The Galden® SV technical brochure identifies degreasing, vapor blanketing, flash-point improvement in mixed-solvent systems and trace-residue removal among the family’s applications. Mixed-solvent use requires formal chemical, safety and material-compatibility assessment.

Frequently Asked Questions

1. Is Galden® SV80 flammable?

Syensqo describes Galden® SV80 as non-flammable, and the manufacturer’s typical-property data report no flash, fire or autoignition point. The latest SDS must still govern ventilation, temperature control and personal protective equipment.

2. What is the difference between SV80 and SV70?

SV80 provides slower evaporation and generally longer working time. SV70 is more suitable where very rapid drying remains the main process objective.

3. How does SV80 compare with SV110?

SV80 has a lower boiling point and higher vapor pressure, so it normally dries faster. SV110 provides longer contact time for soaking or internal flushing.

4. Can SV80 remove PFPE grease?

Yes. Galden® SV fluids are fully miscible with PFPE oils and greases. Cleaning time depends on grease consistency, contamination thickness, agitation and component geometry.

5. Is SV80 suitable for solder-flux removal?

Not automatically. Its strongest documented compatibility is with fluorinated lubricants. The actual flux chemistry and final cleanliness requirements must be tested.

6. Does Galden® SV80 leave residue?

The base fluid is volatile and high-purity, but dissolved contamination can remain if the part is not properly rinsed, drained and dried. Final cleanliness should be verified by QA/QC.

7. Can SV80 be used on plastics and elastomers?

Syensqo reports broad compatibility, but actual formulated seals, adhesives and polymers should be tested under representative exposure conditions.

8. Why choose Galden® SV80?

SV80 is a practical choice when engineers need rapid drying, low viscosity and PFPE compatibility without the extremely short working time of the lowest-boiling SV grades.