ALPHA EF-6100-R

Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium

ALPHA EF-6100-R

Main features

  • Low-solids, alcohol-based no-clean rework flux supporting both lead-free and tin-lead soldering with fast wetting and a wide thermal process window.
  • Very low levels of non-tacky residue help minimize interference with pin testing while supporting no-clean processing.
  • ORL0 classification backed by documented IPC J-STD-004A/J-STD-004B SIR, Bellcore SIR, electromigration, and corrosion test results.

Product Description

ALPHA EF-6100-R No-Clean Rework Flux is a low-solids, alcohol-based flux developed for lead-free and tin-lead rework soldering. Its thermally stable activator and solvent system supports fast wetting across different solder alloys while maintaining a wide thermal process window. The no-clean formulation leaves a very low level of non-tacky residue and is designed to reduce interference with pin testing. ALPHA EF-6100-R is classified ORL0 according to IPC J-STD-004 and has documented surface insulation resistance and electromigration performance. It can be applied using a flux pen, brush, or spray bottle for localized rework operations.

Key features

  • Lead-free and tin-lead rework capability: Provides fast wetting across different Pb-free and SnPb alloys with a wide thermal process window.
  • Low-residue no-clean formulation: Leaves a very low level of non-tacky residue designed to reduce interference with pin testing.
  • Documented electrical reliability: ORL0 flux with documented IPC J-STD-004A/J-STD-004B SIR and Bellcore SIR and electromigration test results.

Applications / Suitable for

  • Lead-free soldering rework
  • Tin-lead soldering rework
  • Localized flux application using flux pens, brushing, or spray bottles
Product Family

ALPHA EF-6100-R

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Solids
4.3 %
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
0.818 ± 0.003 @25°C

Additional Information

Technical properties

As-supplied / before-processing properties

Selected typical properties of ALPHA EF-6100-R in its as-supplied liquid state.

Property Value Unit Method or condition
Appearance Clear, colorless liquid - Typical
Solids content 4.3 % by wt Typical
Acid number 26.2 +/- 1.3 mg KOH/g Typical
Specific gravity 0.818 +/- 0.003 - 25 °C (77 °F)
Flash point 60 (15.6) °F (°C) T.C.C.
pH 3.2 - 5% aqueous solution
Flux classification ORL0 - IPC J-STD-004
Technical properties

After-processing / final-state properties

Selected electrical reliability and corrosion results for uncleaned ALPHA EF-6100-R residues under the stated test conditions.

Property Value Unit Method or condition
SIR - Comb-Down, uncleaned 4.4 x 109 ohms IPC J-STD-004A; 85 °C/85% RH, 7 days, -50 V; measurement at 100 V on IPC B-24 board
SIR - Comb-Up, uncleaned 4.2 x 109 ohms IPC J-STD-004A; 85 °C/85% RH, 7 days, -50 V; measurement at 100 V on IPC B-24 board
SIR - Comb-Down, uncleaned 2.4 x 1012 ohms IPC J-STD-004B TM2.6.3.7; IPC B-24 coupons, 12 V, 40 °C, 90% RH
Bellcore SIR - Comb-Down, uncleaned 4.9 x 1011 ohms GR 78-CORE, Issue 1; 35 °C/85% RH, 4 days, 48 V; measurement at 100 V
Bellcore electromigration - Comb-Down, uncleaned Pass - GR 78-CORE, Issue 1; initial SIR 4.5 x 108 ohms, final SIR 5.2 x 109 ohms; 65 °C/85% RH, 500 hours, 10 V
IPC copper corrosion No evidence of corrosion - ORL0 corrosion testing

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