Chris is using a 2 part epoxy system. It will form a very strong physical bond to the wood and the fiberglass on the boat, and make everything completely waterproof. It will also form an even stronger chemical bond to itself if done quickly enough. Once it is mixed together, the hardening time varies based on the temperature, but on average Chris has about 20ish minutes to use what he mixes up, so he just does a bit at a time.
The epoxy system is made of a resin and hardener to be mixed 2:1. It comes in 5 gallon buckets.
Pouring small quantities of viscous liquid out of 5 gallon buckets can get tedious. Chris got some very fancy containers to fill up and do most of his pouring from. Yes, that is a laundry detergent bottle and a fabric softener bottle. I washed them out very well and they work great.
Other ingredients are added to thicken the mix based on what he is using it for. These include cabosil and wood flour.
There's no fumes to worry about, but this stuff makes a mess and once it dries on something it stays on. Great for the boat, not great for clothing and skin. Chris has some work coveralls dedicated to boat work for this reason.
In summer and fall temperatures, this stuff is usually dry and ready to be sanded by the next day. When Chris was using it on his last boat in the cold winter temperatures, it could take a few days before it was ready.
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