100ml hdpe bottle

When evaluating 100ml HDPE (High-Density Polyethylene) bottles, you must focus on material density and wall thickness to ensure chemical resistance and structural integrity. Look for a gram weight of at least 10g-12g for a standard 100ml bottle to prevent collapsing during filling. Ensure the neck finish (e.g., 20/410 or 24/410) is compatible with your intended closures, such as flip-tops, fine mist sprayers, or lotion pumps. Additionally, verify the opacity levels if your product is light-sensitive.

For food or cosmetic applications, the supplier must provide FDA (U.S. Food and Drug Administration) or EU Food Grade (Regulation No 10/2011) certifications. If the bottles are used for hazardous chemicals, they must meet UN Packaging Standards. Always request BPA-free declarations and REACH/RoHS compliance reports to ensure the plastic does not contain restricted heavy metals or phthalates, which is critical for entry into European and North American markets.

Request a leakage test report (vacuum test) to ensure the seal between the bottle and cap is airtight. Perform a drop test from a height of 1.2 meters to check for cracks. For colored bottles, check for color consistency across batches using a Pantone reference. It is highly recommended to source from manufacturers on Made-in-China.com who offer SGS or Intertek factory audits to confirm their production capacity and quality management systems (ISO 9001).

Suppliers generally offer silk-screen printing, hot stamping, and labeling for branding. For the bottle itself, you can request custom masterbatch colors or specialized finishes like matte (frosted) or glossy. If you require a unique shape, inquire about mold development costs, which typically range from $800 to $2,500 depending on the complexity and the number of cavities in the injection-blow molding machine.

HDPE bottles are lightweight but high-volume, meaning you are often charged based on volumetric weight. To optimize costs, ask the supplier to use nested packaging or high-density cartons. Ensure the use of double-corrugated export cartons (K=K) and palletization with shrink wrap to prevent crushing during sea freight. For large orders, FOB (Free On Board) terms are usually more cost-effective as they allow you to control the shipping line and avoid hidden destination charges.

Focus on the raw material price index; HDPE prices fluctuate with global oil prices, so locking in a price for a 6-12 month supply contract can be beneficial. Negotiate tiered pricing based on volume—discounts of 5-10% are common when moving from 10,000 to 50,000 units. Additionally, request free samples (buyer pays shipping) to test compatibility with your liquid formula before committing to a large down payment.

Always use Secured Trading Services provided by platforms like Made-in-China.com to protect your payment until the goods are shipped. Avoid paying 100% upfront; a standard 30% deposit and 70% balance against the Bill of Lading (B/L) is the industry norm. For first-time orders, consider hiring a third-party inspector to conduct a Pre-Shipment Inspection (PSI) to verify quantity and quality before the final payment is released.