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For the last 29 years we have
made specialized polyethylene/polypropylene products.
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We have also designed & made
proprietary tooling for a number of products.
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Unlike Vinyl or polyurethane, polyethylene & polypropylene are
sealed by heat only.
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The equipment sends a impulse of heat through an element placed
directly on the material thus resulting in the two ply's being
bonded together.
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Polyethylene &
polypropylene are resistant to most chemicals which gives them an
advantage over vinyl & polyurethane.
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Although polyethylene is usually
heat sealed & not dielectrically sealed, it can be
dielectrically sealed in some instances
(By a method which we
have developed). The polyethylene bellows
above was sealed by "dielectric heat sealing".