Phenol polymer with formaldehyde glycidyl ether

Phenol polymer with formaldehyde glycidyl ether (CAS 28064-14-4), commercially recognized as polyglycidyl ether of phenolic novolac, is a multifunctional epoxy resin derived from novolac chemistry. With three or more epoxide groups per molecule, it delivers higher cross-link density than standard diglycidyl ether resins. This makes it the preferred choice where elevated thermal resistance and chemical durability are required.

In protective coatings, it is formulated into high-performance tank linings, pipe coatings, and industrial floor systems. These systems must withstand aggressive solvents and elevated service temperatures during operation. Structural adhesives and composite matrices for automotive and aerospace components rely on its dense cure network. This allows manufacturers to meet demanding mechanical performance specifications in critical applications.

In electrical laminates and encapsulants, it provides the dimensional stability and dielectric performance required. This is essential for modern printed circuit boards and semiconductor packaging technologies. Building and construction sealants and grouts use it as a reactive binder where chemical resistance is a qualification requirement. It is particularly effective against exposure to various acids and alkalis.

Supplied as a semi-solid to viscous liquid resin, the viscosity and epoxide equivalent weight (EEW) vary by grade. This variety allows the material to suit specific processing requirements across different industries. Standard technical and industrial grades are the norm for this polymer. Buyers should confirm EEW, functionality, and softening point against their cure system and application specifications before procurement.