Protolin is a polyurethane-based two-component electrical insulation resin used for cable joint filling and junction box insulation. Manufactured in Turkey by KETENCİ San. Tic. Ltd. Şti., Protolin systems provide reliable long-term protection against moisture, water, vibration, and mechanical stress. What Does Protolin Do? Electrical cable joints and junction boxes are exposed to moisture, water ingress, […]