How do we make sense of the boldfaced if-clause? It's at odds with the traditional conception of conditional sentences, which would require a matching main clause containing "would," 'could," etc. But there's none here.
The resultant product has “visco-elastic properties” — meaning that it behaves like a liquid or a solid depending on the level of the force applied. Think of a fun-sized liquid metal T-1000 from “Terminator 2,” if it was built to help rather than harm.