Amine Blush Swab Test Kit

Product description

Elcometer 139 Amine Blush Swab Screen Kit, 20 tests: Detects amine blush based on the presence of carbamate compounds rather than physical phenomena such as pH. Amines that have migrated to the coating surface can react with CO2 to form carbamates.

This can be observed as an oily film on the surface, but is often invisible to the eye. The presence of amine rouge can lead to intercoat adhesion failures if another coat is applied without removing amine rouge first. When deciding whether an amine-cured epoxy coating can be overcoated, it is essential to determine whether the coating exhibits the amine blush phenomenon.

How to use an Amine Blush Swab Test Kit - Below is a brief overview of the test. Step-by-step instructions and instructions for creating a control sample can be found in the product manual.

Test Part A (green)

1. remove the green bottle cap and the dropper tip from the test bottle A.

2. using the 1 ml mark as a guide, remove 1 ml of the Part A diluent (tube with green cap) using the corresponding colour-coded transfer pipette.

3. add 1 ml of diluent to the corresponding test bottle A.

4. replace the dropper tip and the bottle cap and shake the diluted test Part A bottle moderately for about 30 seconds.

5. wait at least 5 minutes before using the prepared test part A solutions.

Test part B (blue)

Follow steps 1-5 above using the blue colour coding:

1.Dip the cotton portion of a cotton swab (Q-tip) into the swab solution bottle.

2. remove excess product by rolling a cotton swab along the inside of the bottle.

3. swab a 2.5 x 2.5 cm (1 x 1 inch) area for each sample using the swab template

4 Swirl the cotton swab in the air until dry (approximately 2 minutes).

5. place the cotton swab in a sample tube, replace the cap and shake for 30 seconds.

6. add 3 drops of test part A (green cap), shake for 30 seconds and incubate (rest) the sample for 30 minutes at room temperature of 10-30 °C (50-86 °F), avoiding direct sunlight .

7. Add 3 drops of test part B (blue cap) and shake for 30 seconds.

8. Add 2 drops of test part C (yellow cap) and shake for 30 seconds.

9. incubate (rest) the sample for 30 minutes at room temperature avoiding direct sunlight.

10. remove the cotton swab and dispose of it in an environmentally friendly manner.

11.visually compare the results with the control sample within 10 minutes of completing the test: Amine red is present when a detectably lower intensity of yellow colour is observed in the test sample compared to the control sample. The control sample is valid for colour comparison for 24 hours from the time of preparation.

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