To make the acrylic finish of your hot tub, we will put a sheet of the Acrylic into the Hydraulic Clamping Frame and place it in the Vacuum Forming Machine. We heat the acrylic sheet to 395° Fahrenheit until it is semi-molten. The molten acrylic sheet is then stretched over a vacuum mold. As the acrylic sheet sags into the form we apply a vacuum to the underside of the sheet and it vacuums it into the form of the mold of the hot tub.

Once the fiberglass is cooled, we remove it and start preparing it for the hot tub structure.

Fiberglass & Framing the hot tub

Laminates of resin and fiberglass are applied to achieve an overall thickness of 50 - 100% more than the industry average.

The first laminate is the most critical. Bonding the two surfaces together to make them one. It is a specialty resin called vinyl ester which bonds the two together both chemically and mechanically. It will also act as a corrosion and vapor barrier to guard against delimitation and blistering.

By fiber glassing the frame to the hot tub shell we unitize the wood frame and spa shell to make the full support package of the above ground spa. Many hot tub manufacturers no longer support their spas with a frame. They simply set the spa shell in the wood cabinet and fill it full of foam. Doing this eliminates the frame and also foams over 200 – 300 plumbing parts and connections.