This subject has been treated by many, but out of the numerous ideas
that have been brought to bear upon it, the writers have failed to
elucidate the question fully, probably owing to the fact that in most
parts they were themselves dubious as to the real cause. Last year
W.S. gave a lengthy description in the _Building News_, in which he
classified blistering and peeling of paint into one of blistering
only. He stated in the beginning of his treatise the following:
"The subject of blistering of paint has from time to time engrossed
the attention of practical men; but so far as we can follow it in the
literature pertaining to the building trade, its cause has never been
clearly laid down, and hence it is a detail enshrouded in mystery."
W.S. dwells mostly, in his following explanations on blistering
paints, on steam raised in damp wood. Also an English painter,
according to the _Painters' Journal_, lately reiterates the same
theory, and gives sundry reasons how water will get into wood through
paint, but is oblivious that the channels which lead water into wood
are open to let it out again.
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