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Phenol-Formaldehyde Novolacs

Novolacs are solid resins in form of flakes or pellets from clear-white to dark-brown color.

Novolacs are used in many automotive and engineering applications: abrasives, refractory, foundry, felts, frictions, resins coated proppants etc., also novolacs are used as a semi-finish products for producing of powder resins after additional actions.
Metadynea has a varied product portfolio to meet the different requirements including special resins for individual requests.
Resin production process has features depending on the application; however, they are largely similar.

Phenol-formaldehyde resins are produced in a batch process in cooled stainless steel reactors. A large amount of heat is obtained during the reaction between phenol and formaldehyde under acidic conditions; it requires intensive cooling of the reactor. First formaldehyde affiliates to phenol, then the derived products are condensed and, as a result, a polymer is obtained:

When the necessary parameters (phenol content, drop point or melt point) are obtained, the resin is unloaded at the belt, cooled and packing in bags and big-bags, ready for supply.

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