Your Questions Answered

We are a dedicated manufacturer operating a modern facility exceeding 10,000 m². For more than twenty years, we have specialized in high-precision plastic molds as well as the research and development of TPE products, consistently setting the industry benchmark for innovation, performance and quality excellence.

JSD holds ISO 15378 certification, and our manufacturing facility is fully compliant with GMP standards. All our products meet major global pharmaceutical standards, including USP, EP, JP, and ChP. Each product undergoes rigorous testing to guarantee the utmost safety and quality.

Absolutely. We offer complimentary in-stock samples, with shipping costs usually borne by the recipient.

Production schedules are tailored to your order volume, typically ranging from 3 to 30 business days. Our fully integrated in-house manufacturing process and robust supply chain ensure consistent, reliable, and on-time delivery for every client.

We primarily accept telegraphic transfer (TT) and can accommodate other payment methods to suit your needs. Our aim is to make transactions seamless, efficient, and fully aligned with your procurement policies.

Samples are shipped via premium international express carriers. For bulk orders, we offer air freight, sea freight, or rail transport according to your preference. We support delivery to port/station and can work with your designated forwarder to ensure an efficient, secure, and fully transparent logistics experience.

JSD Cap is a TPE Euro Cap specifically designed for BFS and FFS filling systems. Manufactured using high-precision, multi-material co-injection molding and JSD131, a proprietary elastomer developed by JSD, it features an advanced design that brings together the proven strengths of both traditional rubber-stopper–assembled Euro Caps and conventional TPE Euro Caps.

BFS, or “Blow-Fill-Seal,” is an advanced aseptic manufacturing technology widely used for large-volume infusions and other sterile products. The entire process—including bottle forming, filling, and sealing—takes place in an ISO Class A environment. This ensures exceptionally high sterility, minimal particulate contamination, and the utmost stability of liquid medications.

Compared with traditional combination caps, JSD Caps share the core advantages of BFS technology—particularly in terms of sterility, purity, and product stability—and are therefore ideally suited for use in BFS infusion packaging.

Compared with traditional rubber-stopper–assembled Euro Caps, JSD Cap supports a hanging weight of 1 – 1.5 kg, while featuring a more practical and optimized structure, superior dimensional accuracy, and higher material purity.

Compared with conventional TPE Euro Caps, JSD Cap delivers significantly enhanced sealing performance, while ensuring no particle shedding during needle puncture, no leakage during needle withdrawal, smooth needle penetration without sticking, and no solvent odor.

Pharmaceutical manufacturers currently using combination caps can replace them with JSD Caps of the same dimensions without making any adjustments to the production line. End users, such as hospitals, can continue using the products in the same way.

Compared with Euro Caps, thermoset rubber combination caps require a significantly more complex manufacturing process and carry higher risks of chemical and particulate contamination. This is primarily due to the fact that cross-linking agents used in isoprene rubber liners typically contain carcinogenic accelerators and high levels of antioxidants.

Despite these concerns, some countries still use thermoset rubber combination caps due to differences in national regulatory frameworks. Any change to pharmaceutical packaging materials must be reviewed and approved by the relevant authorities, and transitioning from combination caps to Euro Caps typically takes time.

Looking ahead, we expect Euro Caps to see wider adoption globally given their benefits to human health and drug safety.