Description
UCA-2M is a water-based bright blue transparent gel, consisting of a blend of coupling
agents, organic corrosion inhibitors and thickening agents.
UCA-2M has marked thixotropic properties which ensure it stays in position when applied
and does not drip or run from the part under test. The thixotropic and excellent wetting
properties ensure free and even movement of ultrasonic probes over both rough and
smooth surfaces with immediate and excellent acoustic transmission.
UCA-2M is neutral in reaction (pH value 7.5 – 8.5) and the presence of special organic
corrosion inhibitors ensures that it will not corrode most metals. The product is low in
sulphur and halogens and essentially ash free on ignition.
PHYSICAL AND CHEMICAL PROPERTIES
| Density: | approx. 1 g/cm3 |
| pH: | approx. 8 (undiluted) |
| Velocity of sound in UCA-2M: | 1675 metres/second |
| Sulphur: | <50 ppm |
| Chlorine: | <50 ppm |
| Fluorine: | <10 ppm |
| Bromine: | <10ppm |
| Ash: | <0.1% |
Analysis according to ASME Boiler Code 1983 Edition, Section 5.
Sulphur determined by ASTM D-129 or allowed alternative.
Halogens determined by ASTM 0-1598.
METHOD OF USE
UCA-2M is normally applied by hand or with a soft bristle brush. It is completely soluble in
water and can be readily removed by washing with water. Where the use of water is not
convenient or practical, UCA-2M can be removed with alcohol, acetone or similar solvent.
UCA-2M is normally used as supplied but can be pre-diluted with water. When diluted with
an equal quantity of water, UCA-2M retains its thixotropic properties. More dilute solutions
retain enhanced viscosity and powerful wetting properties.
UCA-2M contains-freezing point depressants. Working temperature range: – 10 °C to +50
°C. Above 50 °C, some evaporation of water will take place on prolonged exposure.
EFFECTS ON MATERIAL
UCA-2M contains no powerful solvents and is therefore without effect on painted surfaces,
plastics, synthetic or natural rubbers.
STORAGE
Store in a cool place (5 – 40 °C), with protection from freezing conditions. Shelf life is 60
months.
LABOUR AND ENVIRONMENT PROTECTION
Before operating the process described it is important that this complete document, together
with any relevant Safety Data sheets, be read and understood.
All local and national regulations on the transport, storage, use and waste treatment of
chemicals in concentrated or diluted form and as working solutions must be obeyed.
