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spray foam
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Noun
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English
Wikipedia
has an article on:
spray foam
Wikipedia
spray
foam
(
countable
and
uncountable
,
plural
spray foams
)
A
chemical
product
created by two
materials
,
isocyanate
and
polyol
resin
, which
react
when mixed with each other and
expand
up to 30-60 times its
liquid
volume
after it is
sprayed
in place
.
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