Medical Grade Liquid Silicone Rubber (LSR) 6250-60YH for Negative Pressure Ball

Product Overview

LSR 6250-60YH is a two-component, platinum-cured medical grade liquid silicone rubber developed for medical parts that require reliable softness, elasticity, and long-term stability. It is especially suitable for producing vacuum suction bulbs (negative pressure bulbs / bulb syringes) where consistent sealing, repeated squeezing, and clean appearance are important.

Key Applications

• Vacuum suction bulb / negative pressure bulb (bulb syringe, suction bulb)

• Medical squeezing bulbs, pump bulb components

• Medical silicone parts that need stable recovery and durability

Key Features (Characteristics)

• Medical-grade positioning with biocompatibility testing support (ISO 10993-oriented projects)

• High transparency appearance for clean-looking medical parts

• High strength + good resilience for repeated squeezing cycles

• Low deformation tendency to help maintain shape and sealing performance

• Yellowing resistance & aging resistance for long-term appearance stability

• Stable processing window (pot life available for production planning; temperature affects pot life)

Typical Specification (6250-60YH, A/B)

Typical values for reference; actual results may vary with process, tooling, and curing conditions.

Performance Advantages for Vacuum Suction Bulb Production

• Comfortable hand-feel + reliable rebound: hardness and resilience support repeated squeezing without “soft collapse.”

• Lower risk of edge tearing: higher tear strength helps reduce tearing during demolding, trimming, or assembly.

• Stable sealing behavior: low tensile set helps maintain recovery and sealing force over time.

• Cleaner appearance: transparency + yellowing resistance reduce cosmetic complaints in long-term storage/use.

• Easier quality control: measurable parameters help you set incoming inspection standards (hardness, viscosity, tear strength, tensile set).

Processing & Handling Notes (Practical)

• Mix A/B components evenly before molding.

• Avoid contact with substances containing N / P / S / Sn / Pb, which may affect platinum-catalyzed curing.

• Store in a cool, dry place away from direct sunlight; follow shelf-life guidance for best performance.

Packaging

• 20 kg pails

• 200 kg drums

(Other packaging can be discussed based on your shipment and production needs.)

Why Choose GUANGZHOU RUIHE NEW MATERIAL TECHNOLOGY CO.,LTD

We focus on silicone material development and manufacturing, providing stable supply and technical support for medical silicone applications. For vacuum suction bulb projects, we can recommend matching grades, support sampling, and help align key parameters with your mold design and production process.

Contact

Tel: 86 13421773611
Whatsapp/Wechat: 86 13421773611
Email: wendy@ruihesilica.com