Pentaerythritol Tetra(mercaptopropionate) / PETMP

• Appearance: Colorless transparent liquid

• Assay: ≥ 95.0% (Standard) / ≥ 98.0% (High Purity)

• Color (APHA): ≤ 20 (Low Color)

• Acid Value: ≤ 1.0 mg KOH/g

• Refractive Index (20°C): 1.530 - 1.535

• Sulfhydryl (-SH) Content: 25.7 - 27.0 meq/g

A game-changer for UV/LED curing formulations:

• Rapid Curing (Click Chemistry): Enables ultra-fast curing even under low-energy LED UV sources or in shadow areas.

• Anti-Oxygen Inhibition: Effectively mitigates oxygen inhibition on coating surfaces, ensuring a tack-free finish without nitrogen purging.

• High Refractive Index: Ideal for optical lenses, adhesive films, and high-performance optical coatings.

• Enhanced Properties: Significantly improves adhesion to metals/glass and increases the flexibility of the cured network.

Shelf Life: 12 months (stored in sealed containers at room temperature). Avoid moisture and oxidizers.