RC-77 Fluorescent Penetrant

كمية RC-77 Fluorescent Penetrant

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RC-77 Properties

RC-77 is a post emulsion fluorescent penetrant. It is a Type 1 and Method B, C and D level 4 penetrant according to AMS 2644 and ISO3542-2 intended for the search of fine surface defects. This products level of fluorescence promotes secure detection.

Instructions for use:

Application :

By spraying (electrostatic, pneumatic, aerosol), using a brush, or by immersion.

Dwell time :

10 to 30 minutes, depending on applicable specs. If dipping is used, allow the penetrant to drain from the part surface back to the penetrant tank.

Removal :

Two separate procedures apply:
– with pre-wash
– without pre-wash

Pre-wash :

RC-77 -> Pre-wash -> Hydrophilic emulsifier -> Rinsing -> Drying -> Developer Conventional post-emulsion method diagram :
RC-77 -> Hydrophilic or lipophilic emulsifier -> Rinsing -> Drying -> Developer
The first process will save considerable quantities of emulsifier. The emulsifier is applied by immersion or by spraying (see technical datasheet ER-83A, ER- 83B, ER-83C or ER-85).

Rinsing off :

Use coarse plain water spray to remove all traces of emulsified penetrant Air + water spray gun is a good alternative. Washing is carried out under UV-A radiation, so as to ensure that no fluorescent background is left.

Drying :

A circulating oven (60 to 80°C) is suggested; do not use compressed air. Infrared lamps and/or air guns are not advisable.

Development :

Although RC-77 is self-developing, using a developer enhances indications.

Inspection :

Inspect parts under appropriate UV-A lighting (mini 1000 μW/cm2, if possible > 1500 μW/cm2) and dimmed visible light (less than 20 lux).

Technical Characteristics

Appearance	Green Liquid
Fluorescence	Green-Yellow
Flash Point	> 93°C
Viscosity	8.9 mm2/s ± 10 % at 38°C
Temperature Range	0°C – 50°C.

Available in 25L

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