Closures and liners
Updated
On this page8
What is here
Fifty-two closures: 42 continuous thread, 5 flip top, 3 tub lids, 1 spouted and 1 specialty. By liner, 18 HIS, 9 pressure-sensitive, 7 foam, 5 with no liner, 4 standard plastisol, 3 F217 and 1 PE foam.
Gasket or membrane
Foam, F217 and plastisol seal while the cap is on and tight. An induction liner bonds to the land and stays sealed with the cap off, which also gives visible tamper evidence on a product going into a shared closet.
Alkalinity attacks liners
A strongly alkaline concentrate treats liner materials very differently from a solvent, and the failure is slow: a liner that has swollen or gone soft after six months. Ask the supplier with the pH and the chemistry named.
The one spout, and the five flip tops
A spout suits a jug poured into a bucket; a flip top suits frequent one-handed use. Neither suits a jug feeding a proportioner, where the fitting is dictated by the equipment rather than by preference.
120TT is a different family
The wide pail and drum style closure at the top of this shelf, and not interchangeable with continuous thread. The container and its closure get chosen together at that end of the range.
Tamper evidence is worth more than it costs here
A janitorial product lives in a shared space and gets topped up, decanted and borrowed. A bonded seal is the only way a user knows what they have is what was shipped.
Standardize on 38-400 and test one
Seventeen of the 24 containers carry it, so one closure and one liner covers most of the shelf. Then keep a filled, sealed sample and look at it at one, three and six months, because every liner failure here is slow.