Black PP woven bags are heavy-duty color-coded packaging sacks manufactured from polypropylene raw materials, widely favored for flood control sandbags and outdoor bulk storage. Unlike ordinary colored woven bags without anti-aging treatment, this product is blended with UV anti-ultraviolet additives during yarn production, endowing the bag with strong sun protection and anti-aging performance for long-term outdoor exposure. The full production process includes raw material melting, UV-modified flat yarn extrusion, dense circular weaving and hot melt edge sealing.
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Product Overview
Black PP woven bags are heavy-duty color-coded packaging sacks manufactured from polypropylene raw materials, widely favored for flood control sandbags and outdoor bulk storage. Unlike ordinary colored woven bags without anti-aging treatment, this product is blended with UV anti-ultraviolet additives during yarn production, endowing the bag with strong sun protection and anti-aging performance for long-term outdoor exposure. The full production process includes raw material melting, UV-modified flat yarn extrusion, dense circular weaving and hot melt edge sealing. Each finished bag features uniform fabric density and lasting tensile strength, maintaining consistent color and bearing performance batch after batch. Multiple standard gram weights are available, and customized lengths, widths and weights can be produced to match flood control engineering and outdoor storage demands.
This black UV-resistant woven bag stands out for its outdoor weather resistance and flood control applicability. A full range of fixed width specifications are provided, with flexible order quantities without strict bulk order restrictions. Purchasers can customize dimensions according to flood control sand filling standards, outdoor stacking cycles and single load capacity. The matte black UV blocking layer effectively slows material embrittlement and cracking under long sunlight irradiation, solving the problem of ordinary bags easily aging and breaking outdoors. It is the primary choice for flood control engineering teams, municipal disaster prevention departments, sand and gravel yards and outdoor raw material storage enterprises.
During production, every finished bag is processed with tight weaving and hot-cut sealing. Thermally fused edges stay smooth and firm, free of loose threads even after repeated sand filling, binding and long-term outdoor stacking. The foldable lightweight body occupies minimal storage space when empty, convenient for centralized stockpiling in disaster reserve warehouses and temporary flood control stations. The compact woven structure locks sand, gravel and granular materials firmly, avoiding fine sand leakage during transportation and flood blocking construction.
Besides stable heavy-load bearing capacity, the black fabric masks mud, sand and stains perfectly, keeping a neat appearance after long service cycles. The added UV stabilizer greatly extends service life under open-air sunlight compared to common woven bags. With professional anti-ultraviolet aging function, outstanding sand containment effect, sturdy hot-cut edges and customizable sizes, Black PP woven bags have become the mainstream special packaging product for flood control sandbags, outdoor sand storage and long-term exposed bulk material stacking across all industries.
FAQ
Q: How many bags can fit into a 20'GP or 40'HQ container?
A: Capacity depends on the bag size and thickness. Taking a standard 48gsm, 50x80cm bag as an example:
20'GP: Approx. 260,000 pieces (Baled).
40'HQ: Approx. 610,000 pieces (Baled).
We will provide a professional Loading Plan for your reference.
Q: Can the bags be compressed for sea freight to save costs?
A: Yes, absolutely. All of our export packing is done via compression baling using professional industrial balers. By compressing the bags into tight, uniform cubes, we maximize container space utilization, allowing you to fit significantly more units per shipment and substantially lowering your ocean freight cost per bag.
Q: Do you accept FOB or CIF terms?
A: We accept both. We typically operate on FOB (Free On Board) terms, coordinating with your nominated freight forwarder. If you require door-to-port service, we can also arrange the shipment and provide a CIF (Cost, Insurance, and Freight) quotation.
I warmly welcome your letters or calls. If you have anything to discuss, please feel free to let me know. I warmly welcome your letters or calls. If you have anything to discuss, please feel free to let me know.
