Flame Retardants

Product Overview

General Description

Despite the fact that PVC It is a halogen compound that, on its own, tends to extinguish fire; the additives included usually have the opposite effect. An example of additives that affect this property are plasticizers, as they reduce the limiting oxygen index, or oxygen limiting factor. LOI. It is true that there are other additives designed to minimize this effect, and our technicians can certainly advise you on this.

The flame retardants for PVC They are used to counteract this effect and are usually employed in flexible applications. These are used in the manufacture of electrical cable and/or electrical applications to improve escape time in the event of a fire.

These flame retardants for PVC They help formulators meet ANCE or UL standards in type V or H flammability tests. Their dosage varies according to the required specifications.

Antimony Trioxide

Antimony trioxide is a highly effective flame retardant. Additionally, when used in conjunction with brominated, chlorinated, or borate compounds, it creates a synergistic effect, reducing flame time and ignition gas generation. When used for PVC-based cable sheathing, it can achieve the most demanding properties for high-voltage or THWN2 type cables. Combined with borate compounds, it can reduce gas emissions and also allows for a good LOI (Load of Ignition). It is a good additive for complying with UL 94 standards.

Chlorinated Paraffin

Chlorinated paraffin functions as a secondary plasticizer and provides other important characteristics such as stain resistance, migration resistance, and low-temperature flexibility. It is also compatible with all plasticizers used in PVC formulations. Significant cost savings are achieved by using chlorinated paraffin as a partial substitute for the primary plasticizer, without any loss of quality.This material is also used as a flame retardant in the manufacture of plastics, paints and adhesives; in combination with Antimony Trioxide it improves its flame retardant properties and consequently reduces production costs.