caulk sealant cartridges

Hi, We purchased a new build around 12 months ago. House is about 18 months old now How long would expect to keep seeing shrinkage? I’ve re caulked out front door 3 times now and it keeps cracking. I’ve used shrink resistant caulks etc

Hi all, I'm currently undertaking a project to redesign the way in which caulk and silicone sealant is packaged due to the unsustainable nature of the rigid cartridges most commonly used. If anyone could spend 5 minutes filling out the survey below it would be greatly appreciated...