PSI Offers Impulse Sealing Machine for Dental Use. These impulse heat sealers are suitable to use whenever small quantities of seals are being made or to seal material that cannot be sealed by rotary heat sealers. These are suitable for sealing pouches of polypropylene, polyethylene, Tyvek, paper pouches with glue strip and many other materials which have to be sealed. The machines are reliable machines which are easy to operate. They are completely made of AISI 304 stainless steel. They also aid in Cutting the Pouch when Sealing is completed, which can be done with a handle provided.