PE rattan (Polyethylene Rattan) is a synthetic weaving material used predominantly in the manufacturing of outdoor furniture. This material is engineered to replicate the look and texture of natural rattan but with significantly enhanced performance characteristics for exterior use. Often referred to as synthetic wicker, plastic rattan, or resin wicker, it provides a durable and low-maintenance alternative to traditional natural materials. PE rattan is the industry standard for all-weather outdoor furniture because it combines the aesthetic appeal of woven natural fibers with the resilience of modern polymers.
The Core Material Polyethylene
PE rattan is primarily made from polyethylene, a common and highly versatile thermoplastic polymer derived from petroleum. While polyethylene comes in different forms, the majority of high-quality synthetic rattan utilizes High-Density Polyethylene (HDPE) due to its superior strength and stiffness compared to other grades like Low-Density Polyethylene (LDPE).
HDPE is characterized by a high strength-to-density ratio, meaning it is robust without being overly heavy, and it is known for its resistance to cracking and chemical solvents. During the material preparation phase, the PE resin is mixed with several specialized additives to ensure its suitability for outdoor environments. These additives include pigments for consistent coloration, antioxidants to prevent material degradation, and anti-UV agents and light stabilizers to protect the polymer chains from sun exposure. This chemical composition is what grants the final product its long-term durability and weather resistance.
Manufacturing into Wicker Strands
The process of converting raw polyethylene pellets into flexible, woven strands involves extrusion. First, the polyethylene resin is mixed with stabilizers and color pigments before being heated to its melting point. This molten polymer is then forced through a specialized die, which shapes the material into long, continuous strands.
The shape and diameter of the die determine the final profile of the strand, which can be flat, round, or half-moon to mimic various natural rattan looks. Immediately after extrusion, the hot strands are passed through a cooling bath, which rapidly solidifies the material and sets its shape. This step is sometimes followed by an embossing process where textures are applied to the surface to give the synthetic strand a more realistic feel before it is cut and spooled for weaving.
Key Properties and Advantages
Polyethylene is selected for synthetic rattan due to its inherent resistance to the harsh conditions of outdoor environments. The addition of UV stabilizers helps the material maintain its color and structural integrity when exposed to prolonged sunlight, preventing the brittleness and fading common in unprotected plastics.
Unlike natural rattan, which is porous and absorbs moisture, PE rattan is non-porous and completely waterproof. This non-porous structure means the material is immune to rot, rust, mold, and mildew. Furthermore, the high-density polyethylene base provides exceptional tensile strength, making the finished product resistant to cracking, splitting, and general wear and tear. This resilience allows quality PE rattan furniture to maintain its aesthetic and functional properties for a lifespan of five to ten years with minimal upkeep.
Maintaining and Cleaning PE Rattan
Caring for PE rattan is a simple process that helps ensure the material’s long lifespan and appearance. Due to the material’s resistance to moisture and its non-porous surface, routine cleaning typically requires rinsing with fresh water. For removing accumulated dirt, grime, or minor stains, a solution of mild dish soap and warm water applied with a soft cloth or sponge is highly effective.
Avoid using harsh, abrasive chemicals, bleach, or stiff-bristled brushes, as these can damage the surface finish of the synthetic strands. While PE rattan is UV-resistant, covering the furniture when it is not in use, especially during prolonged periods of intense weather, can further extend its colorfastness and durability. This minimal maintenance requirement makes PE rattan a practical choice for busy homeowners.