Uses of Compounds It would not be possible to talk about sealing compounds in this booklet in a complete and detailed way. But because of the previous references, a few comments about how they should be used are in order.

To make a hermetic seal, you need to choose the right sealant. There isn’t a single compound that works well for all types of packs, so it’s important to use the right one. Before it can be put on the end of the can, the sealant has to be properly prepared.

There are also audio-visual programs with detailed instructions on how to make the compound correctly.

The mixture should now be ready to be lined on the end of the can using standard equipment. For many sanitary cans, the sealing compound is lined in a sanitary open top placement, with the compound starting at 0-4/64 “(0.58 mm) from the cut edge and going in until the seaming panel radius starts.

For many beer and drink can ends, the compound is lined in a flat top beer or soft drink can placement with the sealing compound 0-4/64 “(0-1.58mm) from the cut edge inward to the curl height on the can end shoulder.

How much compound to use depends on the diameter of the can end, the pack, the process, and the style of the can. More specific ideas about these parameters can be gotten from local

One or two turns of lining can be used to put on the compound.

If the lining is made well, it doesn’t matter if it has one turn or two. If the one-turn lining isn’t made well, there may be skips, voids, or a lack of uniformity. In this case, the two-turn lining is more likely to give a more even application and a better hermetic seal.

Once the lining is done, quality checks are done to see if the right film weight is being made and if the compound is going where it should.

Before the ends are double-seamed to the can bodies, they should be left alone for 24 to 48 hours.

Before they can be stored or used, ends lined with water-based compounds must be dried in the oven.