The Truth About Latex
We have
spoken about latex with many people representing many companies.
We know how confusing it can be to sort out how it's processed
( Dunlop vs. Talalay ),
what's added, how it's shipped, how it's tested, and what
all the numbers mean.
The
Basics
- Rubber trees grow only within about 10 degrees of
the equator. They grow best on hilly slopes.
- The trees are sliced at an angle, and a small amount
of the serum is collected daily.
- The trees can be sliced about 180 days per year, except
during the rainy season and during summer. The cut is
about three feet long, and the serum flows for about
an hour. Then the tree heals and the serum stops flowing.
- Latex was originally cultivated in Brazil, but today
the only rubber trees in Brazil are wild. These days
almost all latex comes from the far East.
- When the serum is harvested, it is about 2/3 water.
- Latex serum in its pure state is fairly thick, and
needs to be processed. (It's different from maple syrup
making, in which thin sap is boiled down to make thicker
syrup.)
- A small amount of ammonia is added to the serum so
it will not coagulate before processing. Ammonia is
a naturally occurring product that is washed out later
in processing.
- From here the latex needs to be expanded and concentrated.
This is done by adding ingredients and whipping or frothing
the material in a centrifuge. This ste can be done in
one of two prcesses. The
Talalay process or the Dunlop process.
-
How durable is a latex mattress? Whether
it's Dunlop or Talalay , natural or synthetic blend
, your mattress is going to last a long time. Many
latex mattresses made in the 1950s lasted 30 years
and longer. Latex is extremely durable. If you are
happy with your mattress for 10 to 15 years or more,
you've made a great purchase. Our warranty
is 30 years. How long your mattress lasts will
depend not only on how it's made, of course, but also
how it's used.
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