vial crimping headaches

[Gino4]

Boys,

my 20mm flip top capping results are spotty...inconsistent.
.
Some vials stay sealed, others slowly come uncapped and the silicone seal is exposed and begins to leak.

I've owned 3-4 different manual crimpers, some chinese, others from US manufacturers.

IS THERE A SECRET??

 

[E32038]

Boys,

my 20mm flip top capping results are spotty...inconsistent.
.
Some vials stay sealed, others slowly come uncapped and the silicone seal is exposed and begins to leak.

I've owned 3-4 different manual crimpers, some chinese, others from US manufacturers.

IS THERE A SECRET??

No clue brother. Check out the home brewing section. We are all consumers, not manufacturers.