Answer / saumik

Once gypsum is evnly and proparly spreaded on wall,after drying it gets thicken as hard as rock and doesnt get de-attched from wall unless an until it is subjected by an external abresstion or force and also sometimes due to not knowing the workablity time.And subtimes it happens due to mixxing of uneven quality product.And sumtimes due to wetting of walls wich doesnt alow the layer to get dry.And obviously gypsum is done on plastered wal and not the wall which is layered with nheru.

Answer / salim_rambo

25mm

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