OSTEMER 322 Crystal Clear
Resins

OSTEMER 322 Crystal Clear

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A dual-cure (UV + thermal) thermoset polymer with excellent optical clarity, developed specifically for lab-on-chips and microfluidics. Ideal for prototyping to production manufacturing of transparent microfluidic devices. Available in multiple pack sizes.

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OSTEMER 322 Crystal Clear is a versatile dual-cure (UV + thermal) thermoset polymer with excellent optical clarity, developed specifically for lab-on-chips, microfluidics and MEMS applications. The unique off-stoichiometry thiol-ene (OSTE) chemistry provides built-in surface functionality for easy bonding and surface modification, while maintaining excellent mechanical properties after full cure.

Key Features

  • Stiff, transparent and chemically inert
  • Excellent replication and low shrinkage
  • Compatibility with cells and microscopy
  • Easy to bond/seal to other materials
  • Compatible with both soft (PDMS) and hard molds
  • UV-casted from mm to nanometer resolution

Processing

OSTEMER 322 Crystal Clear is processed using a unique dual-cure mechanism. The resin is first UV cured to fix the shape (Step 1), and then thermally cured at elevated temperature to activate the "click chemistry" that bonds the polymer chains into a dense thermoset network (Step 2). This two-step approach allows for easy handling and demolding after UV, while the thermal cure provides the final mechanical and chemical properties. Compatible with casting, injection molding, and lithographic patterning.

In Action

Application Gallery

Explore examples of devices and structures fabricated using OSTEMER resins. Click any image to enlarge.

Microfluidic chip closeup

Microfluidic Chip Structures

OSTE reaction injection molding

Reaction Injection Molding

High aspect ratio OSTEMER structures

High Aspect Ratio Structures