What is the quality and material of Kingston Brass' bathtubs?

Kingston Brass bathtubs come in three materials: acrylic, cast iron, and solid surface. Acrylic tubs offer the greatest economy and ease of install. Acrylic involves a three-layer process. First, the fiberglass substrate is formed, then a layer of high-grade acrylic sheeting is bonded to the substrate, and finally, the acrylic receives a coat of sealant to protect the finish and color for years to come. 

Cast iron bathtubs are formed in vacuum molds, then sealed and finished with white enamel to create high quality, extremely durable finish. Cast iron offers the best heat retention and durability of any tub material, but it is also exceedingly heavy.

Solid surface is a composite material that incorporates high-quality resin, aluminum, and mineral powder to form a durable, resurfaceable bathtub. Kingston offers solid surface tubs in a matte white exterior with gloss white interior as well as a matte grey exterior with gloss white interior. The matte exterior provides high style and design and the gloss interior ensures the tub remains easy to clean and maximizes stain resistance over time.

Bathtubs - Relax in Style! with Bathtubs from Kingston Brass
 

Our cast iron bathtubs product has been tested for lead content, and its outer paint coating has also been tested for both lead and phthalates with results as follows:

Cast Iron (tub substrate material)      Lead < 10ppm (mg/kg) PASS
Enamel (bathing contact surface inside tub)     Lead < 10ppm (mg/kg) PASS
Exterior Paint (outside of tub, non-contact surface)     Lead < 10ppm (mg/kg) PASS

Phthalate < 1000ppm (0.01%) PASS 

Lead levels are all below detectable limits per testing technology available. Functionally and legally, the tub is lead-free. This means that appropriately installed and used it does not expose anyone to lead or other chemicals known to the state of California to cause cancer, reproductive harm, or birth defects.

The concern over lead content in bathtubs is usually associated with older cast iron tubs (over 20-30 years old) that did use lead in the enamel and have had the enamel coating damaged or had the coating break down with advanced age and use thus exposing the old enamel which can contain lead. A side note of interest - even an antique tub with degraded coating can be restored and used safely. The enamel simply needs to be repaired and the tub surface resealed with an appropriate sealant product.