ChemWhat-671

• Identification
• Properties
• Safety Data
• Specifications & Other Information
• Links
• Quick Inquiry

Identification

Name

ChemWhat-671

Properties

Appearance

White to off-white powder

Safety Data

RIDADR 

NONH for all modes of transport

Specifications and Other Information of Our ChemWhat-671

Product Information

1. ChemWhat-671 is a low-odor, yellowing-resistant free-radical photoinitiator designed to facilitate both surface and deep curing. It effectively initiates the photopolymerization of unsaturated polymers (such as acrylates) in combination with monovinyl or multifunctional vinyl monomers.
2. Compared to Photoinitiator 184, ChemWhat-671 offers several advantages: a higher molecular weight, a faster curing rate, lower odor, and superior resistance to yellowing and weathering after curing. Furthermore, it exhibits low migration properties—thereby meeting environmental compliance requirements—and serves as an excellent substitute for traditional small-molecule photoinitiators typically used for surface drying.

Recommended Dosage

1–3% (adjustable based on the specific requirements and performance of the actual formulation).

Identification Methods

HNMR, HPLC

Purity

99% min

Shelf Life

12 months

Packaging Specifications

20 kg/carton, or packaged according to customer requirements.

Storage

Store in a sealed container in a cool, dry, dark, and well-ventilated area.

Known Application

1. Used in UV coatings, particularly suitable for curing applications requiring low odor and minimal yellowing—such as wood finishes, 3C coatings, etc.
2. UV inks, food packaging inks, and paper varnishes.
3. UV adhesives.

General View of Documents

Links

This product is developed by our R&D company Warshel Chemical Ltd (https://www.warshel.com/).

This product is developed by our R&D company Watson International Ltd (https://www.watson-int.com/).