Elcometer 139 Amine Blush Test

The amine blush test indicates the amine blush by a visual change of color of the test solution when compared with a control sample.

The Elcometer 139 Amine Blush Test determines whether amine blush is or is not present on the coating’s surface.

Elcometer 139 Amine Blush Chip Screen Kit, 20 Tests: Detects amine blush based on the presence of carbamate compounds and not on physical phenomena such as pH. Amines that have migrated to the coating surface can react with CO2 resulting in the formation of carbamates.

This can be observed as an oily film on the surface but is often invisible to the eye. The presence of amine blush will cause inter-coat adhesion failures if a further coat is applied without prior removal of amine blush. It is essential to establish if the coating exhibits the phenomenon of amine blush when determining if an amine-cured epoxy coating can be overcoated.

Elcometer 139 Amine Blush Swab Screen Kit, 20 Tests: Detects amine blush based on the presence of the carbamate compounds and not on physical phenomena such as pH. Amines that have migrated to the coating surface can react with CO2 resulting in the formation of carbamates.

This can be observed as an oily film on the surface but is often invisible to the eye. The presence of amine blush can cause inter-coat adhesion failures if a further coat is applied without prior removal of amine blush. It is essential to establish if the coating exhibits the phenomenon of amine blush when determining if an amine-cured epoxy coating can be overcoated.

How to use an Amine Blush Swab Test Kit – Below is a brief outline of the test. Please refer to the product manual for step-by-step instructions and notes which outline the establishment of a control sample.

Test Part A (green)

1. Remove the green bottle cap and dropper tip from the Test Part A bottle.
2. Using the 1ml marker as a guide, remove 1ml of Part A Diluent – green-capped tube, using the appropriate colour coded transfer pipette.
3. Add the 1ml Diluent into the appropriate test Part A bottle.
4. Replace the dropper tip and 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 color coding:
1. Dip the cotton portion of a Cotton Swab (q-tip) into the Swab Solution bottle.
2. Remove excess by rolling cotton tip on the inside of the bottle.
3. For each sample, using the Swab Template as a guide, swab a 2.5 x 2.5cm (1 x 1”) area.
4. Wave the Cotton Swab in the air until dry (about 2 minutes).
5. Place the Cotton Swab into a Sampler Test Tube, replace the top, 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 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 and environmentally dispose of the Cotton Swab.
11. Visually compare the results to the control sample within 10 minutes of test completion: Amine blush is present if there is a detectably lower intensity of yellow color observed in the test sample as compared to the control sample. The control sample is valid for color comparison for 24 hours from the time of preparation.

Amine Blush Swab Test Kit

Amine Blush Chip Screen Test Kit

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Amine Blush Swab Screen Test Kit

Amine Blush Chip Screen Test Kit