HDPE is a low-cost material with an excellent balance between stiffness and toughness, over a wide temperature range. In its natural state, it is a translucent, milky white material. HDPE meets FDA requirements for direct food contact applications and is also accepted by the US Department of Agriculture (USDA), National Science Foundation (NSF), and the Canadian Department of Agriculture. HDPE bottles are lighter-weight than most alternative, non-plastic packages. HDPE is chlorine-free, requires fewer additives, and is easily recycled.
HDPE is widely used in extrusion-blow-mold containers for milk, household chemicals, automotive products and large drums of industrial chemicals. It has a higher abrasion and chemical resistance, resists strong acids and alkalis, and is less susceptible to surge shocks since it’s more flexible. Fabricated items may be cross-linked to further improve their resistance to chemical and physical use in such applications as chemical storage tanks.
HDPE consists of molecules that are essentially linear, with less than one branch per 200 carbon atoms in the backbone. Such linearity permits the development of translucence, which give them the highest modulus and lowest permeability of all the classes of polyethylene. This combination makes them suitable for large-scale liquid holders such as drums, tight head pails, and chemical storage tanks. On a smaller scale, a combination of toughness, low permeability, and high environmental stress crack resistance makes HDPE bottles best fit to contain household, industrial, and automotive chemicals such as liquid detergent, bleach, motor oil, and antifreeze.
HDPE is an excellent moisture barrier and is well-suited for packaging household cleaners. Good rigidity and stiffness make HDPE bottles the resin of choice for many household cleaners: ammonia bleach, scouring powders, detergents, dish-washing liquids, disinfectants, drain cleaners, fabric cleaners, oven cleaners, polishes, metal polishes, and stain repellents. They increase the convenience, safety, and delivery of a household cleaner to its application.
In the cooled and solid state, HDPE bottles have a memory, so even after they are squeezed or twisted they will tend to return to their original shapes. This makes them ideal for use as squeeze bottles in many custom configurations for liquid cleaners.
In addition to squeeze bottles, HDPE bottles can be used as spray containers for home cleaners. Whether you’re looking for a standard round carafe style bottle or a custom shaped spray bottle, HDPE can offer the versatility you’re seeking.