There are many types of bathtubs. Cast iron: advantages: smooth and smooth, warm color, anti-fouling, easy to clean, long life; disadvantages: the highest price, hardness and heat preservation are not as good as acrylic cylinders, the color and shape are limited by the process, so they are relatively single; and it is bulky and not suitable for installation and transportation. Pay attention to the smoothness and flatness of the glaze, pay attention to small cracks and defects, and never buy cast iron cylinders with orange peel marks on the surface. Folding type: The cylinder body material of the folding bathtub is: double-layer waterproof cloth is used, and a sponge is included as the cylinder body. The thickness of the sponge is ≥5mm, and the waterproof cloth is brightly colored. There are no wrinkles or tears on the surface, and the zipper can be pulled back and forth freely. Folding bracket: The load-bearing support bracket is made of a combination of stainless steel square tubes 25mm×25mm and 22mm×22mm. The upper opening is made of a combination of stainless steel cylinder round tubes 20~22mm. The surface is smooth and the folding part can be folded freely. Back plate: Made of welded stainless steel round or square tubes, it can be flipped freely and fixed firmly. Waterproof cloth breaking force: ≥450N/50mm, elongation at break: ≥15%. The foldable bathtub has applied for a national utility model patent.
Ceramic bathtubs have become obsolete due to their bulkiness, material consumption, and fragility, and have been replaced by materials such as acrylic, cast iron enamel, and steel plate enamel. The surface of the acrylic material is polymethyl acrylate, and the back is made of resin gypsum and glass fiber to enhance the load-bearing capacity. The thickness is usually 3~10mm. Its advantages are: easy to shape, slow heat dissipation, good thermal insulation performance, water temperature can be maintained for a long time, no cold feeling when touching the surface, warm touch, and easy to scrub and clean, light weight, easy to install, rich color changes. Due to the above characteristics, the cost of acrylic bathtubs is relatively cheap. The disadvantages of this material are that it is easy to get dirty and not resistant to wear and tear. After being used for some time, the surface will easily turn gray. Steel plate bathtubs are formed from steel plates of a certain thickness and then enamel-plated on the surface. The characteristics are: easy to form and low cost. Because the surface is enamel, it is not easy to get dirty, easy to clean, not easy to fade, and has a long-lasting luster. ?