How strong is the fen raft spider silk?

Question: How strong is the fen raft spider silk?
- Keywords:
  fen raft spider,
  silk,
  strong
Asked by ctaylor4 to Fen Raft Spider on 23 Nov 2017.
- Fen Raft Spider answered on 23 Nov 2017:
  
  Nobody is quite sure, as all of my different silks have not been tested for their strength like some other spider silks. But I make draglines, which are one of the strongest types of web, and use these to attach myself to surfaces and stop myself from falling off things and hurting myself.
  
  I have loads of different uses for my silk, it protects my eggs, ties my food up, keeps me safe and when I am a spiderling (baby) I can even use it like a parachute to fly!

Question: How strong is the fen raft spider silk?