Materials Testing
    Amine Blush Swab Test Kit

Amine Blush Swab Test Kit

  • 172 x 110 x 100mm (6,75 x 4,25 x 4,00”)
  • 350g (12,3oz)

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When using amine cured epoxy resin coatings in a multi-layer system, if the original coating cures in a low ambient temperature and/or in a high humidity environment, problems - referred to in the industry as amine blush can develop.

The presence of amine blush can lead to inter-coat adhesion failures if the film is re-coated. The Elcometer 139 Amine Blush Swab Test Kit is a rapid colorimetric test designed solely for the use in the quick and immediate qualitative identification of amine blush (carbamates) on the surface of coatings using surface swabs. The presence of amine blush is indicated by a visual change of colour of the test solution when compared with 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 appropriately colour coded transfer pipette.
  3. Add the 1ml Diluent into the appropriateTest 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 colour 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),shake for 30 seconds.
  8. Add 2 drops of Test Part C (yellow cap),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 colour observed in the test sample as compared to the control sample.



Part NumberDescription
E139----AAmine Blush Swab Test Kit
Dimensions172 x 110 x 100mm (6.75 x 4.25 x 4.00”)
Weight350g (12.3oz)
Packing List20 x Polystyrene Sampler Test Tubes of 1.0ml (0.035fl oz) buffer solution, 1 x Test tube of Diluent Part
A solution, 1 x Test tube of Diluent Part B solution, 2 x Diluent Transfer Pipettes, 3 x Test Part A dropper bottles - containing ACh-E powder (freeze dried),3 x Test Part B dropper bottles - containing ATC powder (freeze dried),1 x Test Part C dropper bottle - containing Chromogen DTNB solution,1 x Bottle of Swab Solution - containing 25ml (0.89fl oz) of rubbing alcohol (70% IPA),20 x Cotton Swabs (q-tips),2 x Swab Templates - 2.54 x 2.54cm (1 x 1”),1 x Pair of Tweezers, 1 x Re-sealable plastic bag for content disposal 1 x User Guide.