ER-83B Hydrophilic Emulsifier

Description

ER-83B Properties

ER-83B is a hydrophilic emulsifier used to remove excess surface penetrant.

• Foam-generating aerosol, 5% dilution in water.
• Surface effect emulsifier without solvation effect: low risk of over-emulsification.
• It is free of ethoxylated alkylphenols (APE).
• It is the only emulsifier with an integrated anti-corrosion function.
• The aerosol packaging allows application by spraying

Instructions for Use:

Spraying:
A highly diluted solution of ER-83B is sufficient (0.1% to 3%). However, a greater concentration may also be used (5%).
The concentration is to be determined according to:

– Pre-washing result,
– Surface condition,
– Attractiveness between part surface and penetrant
– Strength of the spray,
– Dwell time of the emulsifier (washing time + time elapsed before rinsing).

Immersion:
It is recommended to pre-wash parts to eliminate as much excess of penetrant as possible due to mechanical action of water. Then, dip the parts into an ER-83B solution, let drain and rinse with water.

Note 1: It is not necessary to move the parts during immersion, nor to stir the emulsifier. As there is no mechanical agitation or action other than the incoming and outgoing movement, plus the final rinsing, a solution more concentrated than for spraying is required to eliminate the penetrant. The typical concentration is 5 to 20%, but, depending upon the case, more diluted or more concentrated solutions can be used.

Note 2: ER-83B concentration should be regularly checked. The superficial tension of the mixture being very low, water evaporates significantly more quickly than observed on pure water. Therefore, water should be added regularly, because increased concentration inevitably causes greater activity for the emulsifier. The emulsifier concentration in water can be measured using a refractometer. In addition, penetrant content of the ER-83B solution should be checked, because contamination with penetrant interferes with the emulsifying process and, after some time, the ER-83B solution should be replaced. Bubbling is useful to oxygenate the bath and avoid odours of anaerobic bacteria.

Available in 25L.

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