JSD Cap

JSD Cap® &
JSD 131 Elastomer

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

JSD 131 Elastomer

To meet the stringent performance requirements of the TPE sealing component in JSD Cap, we partnered with leading global material scientists and pharmaceutical packaging experts to develop the JSD131 elastomer.

JSD131 features excellent elasticity and high material purity characteristic of premium medical TPE materials. It fully complies with ICH, FDA, ISO, and EU regulatory requirements. It contains no phthalate plasticizers, polycyclic aromatic hydrocarbons (PAHs), bisphenol A, or other harmful substances. JSD131 serves as a core material technology underpinning the performance of JSD Cap.

Core Advantages of JSD Cap

Validated through rigorous pharmaceutical container closure integrity testing

No Particle Shedding During Needle Puncture
  • When the silicone-free cap is punctured by a plastic spike or injection needle, it generates no particles or fragments that could contaminate or fall into the drug container.
  • In addition, the cap prevents particles or fragments from adhering to the spike or needle during insertion and withdrawal.
No Leakage During Needle Withdrawal
  • After infusion is completed and the plastic spike is withdrawn from the cap, the cap ensures zero leakage of residual drug solution from the medical container.
  • Following medication injection with a steel needle, the cap maintains container integrity with no residual drug leakage, even under internal pressure of up to 20 kPa.

A Superior Alternative to Traditional Euro Caps

JSD Cap

vs

Rubber Gasket Combination Cap

  • Significantly better self-sealing performance
  • Practical, optimized structure for improved functionality
  • Superior dimensional accuracy
  • Higher material purity
  • Supports higher retention force and a hanging weight of 1–1.5 kg
  • Eliminates all spike-related issues

JSD Cap

vs

Conventional TPE Euro Cap

  • Significantly better self-sealing performance
  • No leakage during needle withdrawal
  • No particle shedding during needle puncture
  • Smooth needle penetration without sticking
  • No solvent odor
  • Eliminates all spike-related issues

The JSD Cap Portfolio

By combining high-performance pharmaceutical packaging materials with advanced manufacturing technologies, JSD Cap delivers a trusted BFS Euro Cap solution for global parenteral applications. It enables seamless product replacement without requiring changes to existing production lines.

JSD has developed more than ten JSD Cap variants with diameters ranging from 24 mm to 39 mm. Today, we are a specialist LVP packaging manufacturer offering the world’s most comprehensive range of TPE co-injection Euro Caps, supporting diverse infusion applications with reliable, high-quality packaging solutions.

Explore the JSD Cap Portfolio
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