SUPER STRONG ACRYLIC has many benefits over standard acrylic. Made using the latest materials and techniques it produces a bath that is as strong as cast iron but is warmer to the touch and retains heat longer than standard bath. Smooth high gloss acrylic is solid in colour so it won't rub off or fade. Fully encapsulated high strength baseboard. A special mix pf polyester resin sreals in the baseboard, incresing rigidity and acting as a thermal layer so the water stays warmer longer.