Specialty additives for UV curing & polymer protection

Photoinitiators

Photoinitiator MBF

Methyl benzoylformate

Liquid benzoylformate initiator trusted in electronics and imaging systems.

Product Description

MBF is a small, fully liquid Type I photoinitiator with a long track record in microelectronics. Its benzoylformate chromophore cleaves efficiently at 300–370 nm, and the liquid form gives excellent solubility and clean filtration for fine-line imaging systems.

MBF is especially established in PCB legend inks, liquid photoresists and optical fiber coatings, where its low ionic impurities and consistent viscosity are valued. Typical loadings are 2–5 wt%.

Key Features

  • 100% liquid — perfect solubility, easy filtration
  • Proven in microelectronics imaging
  • Low ionic content for electronics grades
  • Compatible with cationic and free-radical systems

Applications

  • PCB legend and marking inks
  • Liquid photoresists and solder masks
  • Optical fiber coatings
  • Imaging and plate-making systems
  • Clear UV coatings

Specifications

Photoinitiator MBF — molecular structure
Structural FormulaC9H8O3
CAS No.15206-55-0
Molecular FormulaC9H8O3
Molecular Weight164.16
AppearanceLight yellow liquid
Assay (GC)≥ 98.0%
Water Content (KF)≤ 0.2%

Packaging & Storage

25 kg HDPE pail or 200 kg steel drum. Store cool, dry and protected from light; shelf life 24 months.

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