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In ________________ defect, the formation of dull patches occurs on the finished polished surface.

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in Construction & Building Materials by (190k points)
In ________________ defect, the formation of dull patches occurs on the finished polished surface.

(a) Flaking

(b) Bloom

(c) Fading

(d) Flashing

I got this question in a job interview.

I'm obligated to ask this question of Defects in Painting topic in portion Painting, Varnishing, Distempering, etc of Construction & Building Materials

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The correct option is (b) Bloom

The explanation: Bloom is due to the defect in Paint or bad ventilation. Whereas, the gradual loss of colour is known as the Fading and it is mainly due to the effect of Sunlight on the pigment of paint.

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