Joint Sealing Technologies

This videos shows the differences and advantages of different joint sealing technologies like silicone, polyurethane, STP and acrylic dispersions. https://www.sika.com/en/construction/... All our buildings are full of joints. Every time we switch from one building block to another there is a joint. At the joints is where the buildings are most vulnerable to water ingress.This is where sealants come into play. They connect different building blocks and materials and compensate the movement between them. So what are the qualities a sealant needs to bring to enable reliable and durable tight joints?