Name: LENIUM ES
Brand: Vantage
SKU: LENIUM ES

Main features

Electronics Defluxing and Decontamination
Broad Multi-Soil Cleaning Range
Qualified Solvent-Replacement Scope

Product Description

LENIUM™ ES is a binary azeotrope of n-propyl bromide (nPB), isopropyl alcohol (IPA), and stabilizers designed for open-top and vacuum vapor degreasers. It is formulated for electronics defluxing, including removal of solder flux residues and ionic contamination from circuit assemblies, and also removes documented industrial soils such as adhesives, buffing compounds, drawing oils, greases, hydraulic oils, lapping compounds, resins, inks, silicone oils, and waxes. Current typical data include a 148–151°F (64–66°C) boiling range, 0.49 cP viscosity at 20°C, 110.9 mm Hg vapor pressure at 20°C, and a Kauri-Butanol value of 125.

Key features

Electronics defluxing: Removes solder flux residues and ionic contamination from circuit assemblies in vapor-degreasing processes.
Broad documented soil removal: Removes adhesives, buffing compounds, drawing oils, greases, hydraulic oils, lapping compounds, resins, inks, silicone oils, and waxes.
Open-top and vacuum equipment fit: Designed for use in both open-top and vacuum vapor degreasers.
Defined process-control data: The current TDS provides controller references including LTC 164°F (73°C), HTC 169°F (76°C), SVC/VU 144°F (62°C), and primary refrigeration at 35–40°F (2–5°C).
Legacy-solvent replacement scope: Supplier-positioned as a drop-in replacement for TCE, HCFC-141b, HCFC-225, PCE, and methylene chloride.
Qualification support: Current Vantage product information lists Goodrich Landing LGPS 1400, Lockheed Martin EMAP G41.149, and Safran In-1500 approval references.

Applications / Suitable for

Electronics and PCBA defluxing
Precision cleaning in vapor-degreasing equipment
Military and defense cleaning processes within the applicable approval and process scope

TDS, SDS & Technical Documents

LENIUM-ES-Vapor-Degreasing-Solution

English (Technical Data Sheet (TDS))

Technical Specifications

General Properties

Specific Gravity

1.25

Vapor Pressure

110.9 mmHg

Thermal Properties

Boiling Point

64-66 °C

Flash Point

None °C

Physical Properties

Viscosity

0.49 mPa.s

Additional Information

Surface Treatments | Vapor-Degreasing & Defluxing Solution

LENIUM™ ES

LENIUM ES is a stabilized nPB/IPA vapor-degreasing solution for electronics defluxing and precision cleaning. It is designed for open-top and vacuum vapor degreasers, removes solder flux residues and ionic contamination from circuit assemblies, and also addresses a broad range of documented industrial soils.

nPB + IPA azeotrope Electronics defluxing Open-top & vacuum systems 148–151°F boiling range 0.49 cP at 20°C KB value 125

Vantage Drum Packaging

As-Supplied Properties

Boiling range

148–151°F (64–66°C)

Decision-relevant physical data for vapor-degreasing process evaluation; it is not itself a universal equipment setpoint.

Viscosity

0.49 cP at 20°C

Typical liquid viscosity reported in the current technical data sheet.

Kauri-Butanol value

125

Typical solvency-index value used alongside the documented soil-removal scope.

Typical data is provided for product evaluation and is not intended as a guaranteed specification unless explicitly identified as such by the manufacturer.

Property	Value	Unit	Method / condition
Appearance	Clear liquid	—	As supplied
Specific gravity	1.25	—	At 25°C
Flash point	None	—	Reported in the current TDS; no additional flash-point method is stated in the table
Boiling point	148–151 (64–66)	°F (°C)	Typical boiling range
Viscosity	0.49	cP	At 20°C
Vapor pressure	110.9	mm Hg	At 20°C
Evaporation rate	0.96	TCA = 1	Relative evaporation rate
Specific heat	0.27	—	At 25°C; unit is not stated in the current TDS table
Heat of vaporization	58.8	cal/g	Typical value
Kauri-Butanol value	125	—	Typical solvency index

Processing

Vapor-Degreasing Process

LENIUM ES is designed for open-top and vacuum vapor degreasers. The current technical data sheet directs users to add the product at full concentration to the tank reservoir or reservoirs and provides controller references for process setup. Use the current Vantage operating manual and equipment-specific instructions for the complete operating procedure.

Charge concentration: Add LENIUM ES at full concentration to the tank reservoir(s).

Controller references: Liquid Temperature Controller (LTC) 164°F (73°C); High Temperature Controller (HTC) 169°F (76°C); Safety Vapor Controller (SVC) 144°F (62°C); Vapor Up Temperature (VU) 144°F (62°C).

Primary refrigeration: 35–40°F (2–5°C).

Cleaning role: Supports electronics defluxing and precision cleaning, including removal of solder flux residues, ionic contamination, and the other documented soil types.

Storage and Handling

LENIUM ES has a 36-month shelf life when stored in the original, sealed container above 50°F (10°C). Current Vantage technical data lists 50 lb (23 kg) pails and 550 lb (249 kg) drums. Consult the current Safety Data Sheet and applicable workplace, transport, environmental, and equipment requirements for complete handling, exposure-control, storage, and disposal information.

Qualification and Approval References

Current Vantage product information lists the following approval references for LENIUM ES. Applicability remains controlled by the exact specification, process, revision, substrate or assembly, facility, and acceptance requirements.

Current listed approval references

Goodrich Landing LGPS 1400 Solvent Cleaning / Degreasing
Lockheed Martin EMAP G41.149
Safran In-1500 Products Used For Degreasing-Organic Solvents (n-Propyl Bromide)

Confirm the current revision and the exact controlled-process applicability before specification or release.

Defined legacy-solvent replacement scope

Vantage positions LENIUM ES as a drop-in replacement for trichloroethylene (TCE), HCFC-141b, HCFC-225, perchloroethylene (PCE), and methylene chloride (MeCl).

Replacement language is limited to the named solvents and does not remove the need to verify actual equipment, material compatibility, cleaning performance, residues, exposure controls, and process qualification.

Use contexts

Applications

Evaluate LENIUM ES within the documented vapor-degreasing, soil-removal, material, approval, cleanliness, and safety boundaries. Application trials should represent the actual assembly materials, contaminant set, equipment, cycle, and downstream process requirements.

Electronics and PCBA defluxing

Use in vapor-degreasing processes to remove solder flux residues and ionic contamination from circuit assemblies, with cleaning performance and material compatibility verified on the actual assembly.

Precision parts cleaning

Evaluate for removing documented industrial soils including adhesives, buffing and lapping compounds, drawing and hydraulic oils, greases, resins, inks, silicone oils, and waxes in open-top or vacuum vapor-degreasing equipment.

Military and defense cleaning

The current Vantage product page identifies Military & Defense as an application area. Use within the exact approval, specification, equipment, part-material, and cleanliness requirements that govern the intended process.

Product Resources

Electronics Cleaning Solutions Brochure

Vantage brochure covering electronics-cleaning technologies, including LENIUM ES positioning for nPB vapor degreasing and defluxing.

View resource

Aerospace and Defense Brochure

Vantage overview of surface-treatment solutions for aerospace and defense, including LENIUM vapor-degreasing products and application context.

View resource

Next steps

Technical Support

Work with Krayden to evaluate LENIUM ES against your vapor-degreasing equipment, flux or soil set, assembly materials, controller requirements, cleanliness targets, approval scope, packaging, and safety controls. Krayden can help coordinate technical review, application testing, and process implementation with Vantage.

Contact Krayden