Wet sponge side leakage

The wet sponge leak detection method involves moving a moistened sponge over the surface of a coating and observing changes in the sponge's color as it absorbs moisture to identify discontinuities in the coating. It is used for quickly locating defects such as pinholes and cracks in paint films or coatings, and is suitable for on-site inspection in anti-corrosion engineering applications such as ships and pipelines.
Selection
When selecting, consider matching the hardness of the sponge to the curvature of the surface being tested, determine the voltage range based on the coating thickness, choose a sponge material with appropriate water absorption according to environmental humidity, and select DC or AC mode in accordance with the testing standard requirements.
type
Coated Film thickness
Voltage range

Terms

Instruments

Suitable for low Hardness Rubber and Sponge Determination, Measurement range 20-90HAO, Indication Error ≤ +/- 1HAO, Portable design for quick field testing.

$ 141.00

Suitable for low hardness rubber and sponge determination, measurement range 20-90HAO, resolution 0.1HAO, support real-time mode, peak mode, automatic timing and average mode.

$ 399.00

With automatic self-inspection certificate voltage Adjustment, detection voltage 9V to 90V adjustable, thickness range 0~ 500μm, meet IP65 Protection Rating and weight only 180 grams easy to carry.

$ 1464.00

Test voltage 100-600V adjustable, short circuit current 1A +/- 0.1A, using platinum ElectRode high temperature corrosion resistance, drop height 30-40mm adjustable, time interval 30 +/- 1 seconds, automatically cut off the unqualified current.

$ 1542.00

With 5~ 3000N force value range and +/- 1% accuracy, support ring pressing, side pressing, flat pressing and adhesive strength detection, using 3.2 inch LCD display and thermal printout.

$ 1080.00

With 0~ 500μm thickness detection capability, using 9V/67.5V/90V multi-voltage output, automatic self-calibration and sound alarm function, meet IP65 Protection Rating to ensure durability.

$ 622.00

Using 0.01N High resolution Force Value Sensor, equipped with 12.5mm/min constant speed pressurization system, support ring pressure, side pressure, flat pressure, adhesive strength and other test modes, to meet a number of national standards.

$ 964.00

Test voltage 100-600V adjustable, short circuit current 1A +/- 0.1A, using rectangular platinum plating ElectRode, drop time interval of 30 +/- 1 seconds, with automatic cut-off protection function.

$ 1848.00

Using 25mm stylus and 80mm pressure foot, Measurement range 10~ 90HMF, error ≤ 1HMF, support USB and Bluetooth data output, with unit conversion and automatic shutdown function, portable design for handheld or fixed load measurement.

$ 375.00

Adopt digital filtering technology for accurate thickness measurement, resolution up to 0.1HMF, Accuracy ≤ 1HMF, support RS232C communication to achieve data collection and analysis, automatic voltage indication and shutdown function.

$ 443.00

Equipped with a digital ruler to collect displacement data, the resolution is up to 0.01mm, the maximum measurement load is 500N, the base has a mobile platform for easy installation of fixtures, and the side handwheel is easy to load and operate.

$ 357.00

It adopts trapezoidal screw drive and side handwheel loading mode, which is stable and easy to operate. It is equipped with a mobile base platform, which can realize free movement of front, rear, left and right. The rated load is 500N, and the Test Travel is up to 250mm, which meets a variety of mechanical testing requirements.

$ 298.00

The colony contrast is clear by using ring lamp side-shot illumination, equipped with three-digit display and counting probe pen, the counter capacity is 0-999, and it has a 30-day charging standby function, which can reduce the experimental labor intensity.

$ 212.00

Using high frequency principle, the measurement range is 0-80%, the accuracy is 0.1/0, and the Response Time is 1 second. The probe type Sensor can penetrate deep into the material. The portable design weighs about 200 grams, which is suitable for on-site rapid detection.

$ 235.00

It has the function of automatically calculating the edge pressure strength of the ring, no need to calculate by hand to reduce the error; the self-contained stacking test can set the force time; three adjustable speeds, the accuracy is +/- 1%, and the maximum load is 2KN.

$ 1177.00