- Impulse sealers are made to seal a variety of plastics. The most popular packaging used with impulse sealers is shrink wrap packaging and polyethylene packaging. For shrink wrap packaging, the most popular impulse sealers used are round wire sealers. Most companies sealing polyethylene bags and tubing commonly use a flat wire impulse sealer or a flat wire impulse sealer with a cutter blade.
- What is the proper heat settings for my new sealer? Each sealer has a sealing wire that heats up when the sealing bar is closed. The sealing wire heats up the plastic film and mends it together. The ability to keep the heat settings on the sealing wire the lowest possible while still accomplishing a sturdy seal allows each wire to last longer.
The chart below breaks down the recommended heat settings for each film type and thickness.
Impulse sealer heat settings
|Film type and thickness||Recommended round wire heat setting||Recommended flat wire 2mm heat setting|
|PVC shrink film 75 gauge||3||1|
|PVC shrink film 100 gauge||3||2|
|Polyolefin shrink film 60 gauge||2||2 to 2.5|
|Polyolefin shrink film 75 gauge||2||2 to 2.5|
|Polyolefin shrink film 100 gauge||4||3|
|2 mil polyethylene film||4||3|