A304 | 4-META adhesion promoter Additive

Main features
  • Dental Applications
  • Adhesion promoter
  • Methacryloxyethyl trimellitic anhydride

Product Description

A-304 is a 4-META (Methacryloxyethyl trimellitic anhydride) that contains contains two functional groups facilitating a bridge between tooth and adhesives. Research has found that methacrylates with both hydrophobic and hydrophilic groups, like 4-META, enhance monomer penetration into dentin pretreated with 10% citric acid and 3% ferric chloride (10-3). Examinations revealed the formation of a transitional zone of resin-reinforced dentin, termed the hybrid layer. 

A-304 is a white powder/crystal reactive primer recommended for use in dental applications. It is not listed in the TSCA list.

Product Family
50gr Jar

Catalog Product

Unlike other products we offer, the products listed on this page cannot currently be ordered directly from the website.

Technical Specifications

General Properties
Appearance at room temperature.
White powder
Molecular weight 304.25 g/mol
Thermal Properties
Melting Temperature
Melting temperature 90 °C