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Home -> News -> Regular Strength Phenolic Gratings -> Phenolic Resin

Chinagrate Phenolic Resins

Phenolic resin is classified as a condensation reaction polymer. In this type of reaction, the polymer grows by combining two large molecules and releasing a third small molecule, usually water. Depending on the product formulation, either a novolac or a resole resin is produced. Novolacs are designed to incorporate a curing agent, such as hexamethylenetetramine, and are referred to as two-stage, which employs an acid catalyst. Resoles require no curing agent and because of the one component characteristic of this resin are therefore referred to as single-stage, which employs an alkaline catalyst.

A wide range of characteristics can be designed into a phenolic resin. Reactivity, moisture content, molecular weight, pH, monomer level, viscosity, flow, lubricity, and particle size all may determine the suitability of a resin for a particular application. Through the controlled selection of formulation options, manufacturing parameters, cure promoters, lubricants and other additives, our phenolic gratings are optimized to meet the needs of our customers.

Chinagrate uses novolac resins in our phenolic molded gratings, and resole resins in our phenolic pultruded gratings.
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