Manufacturing: Fiberglass
How we build the best cold climate hot tub!
We apply in total 8 layers of glass & resin.
First we put on a clear coat of marine grade CORVE 8117 Vinyl Ester bonding resin using a Magnum chopper gun. This is the most expensive and best resin we can buy. This is one of the most important steps in building a high quality hottub shell. Some companies omit this step!!! It costs us approx. $200 additional per 8'x 8'hottub. Vinyl ester is an epoxy-based thermosetting resin that goes on like glue and this allows us to hand roll out all air pockets between the fiberglass and the acrylic. That way we can guarantee a 100% chemical bond.
It is inconceivable to us that one of our major (Alberta made) competitors does not do this important manufacturering step. If the competition won't tell you the exact resigns in their hottubs the chances are they are not putting on a Vinyl Ester bonding coat. With out it there is a high probability of delamination. The calcium filled resins will not mix 100% and you will get clumps of calcium on the acrylic and it will not bond. You will know in 3-5 years when your hottub blisters.
Then we apply 3 more layers of glass & filled resin.
The last steps are the final 4 layers of fiberglass.