{"id":33565,"date":"2026-07-22T18:04:11","date_gmt":"2026-07-22T16:04:11","guid":{"rendered":"https:\/\/corh.it\/passive-protection-in-uninsulated-metal-pipe-penetrations\/"},"modified":"2026-07-22T18:04:20","modified_gmt":"2026-07-22T16:04:20","slug":"passive-protection-in-uninsulated-metal-pipe-penetrations","status":"publish","type":"post","link":"https:\/\/corh.it\/en\/passive-protection-in-uninsulated-metal-pipe-penetrations\/","title":{"rendered":"Passive protection in uninsulated metal pipe penetrations"},"content":{"rendered":"\n

Metal pipes<\/strong>, or non-combustible pipes<\/strong>, have a melting point that in most cases exceeds 1000\u00b0C; therefore, even in the event of a fire, they are able to maintain their structural integrity, unlike combustible pipes. However, non-combustible materials such as iron, steel, copper, etc., are characterized byhigh thermal conductivity<\/strong>, which causes them to overheat rapidly in the event of a fire. This property of the material can become a potential source of ignition for fires in<\/strong> adjacent compartments<\/strong> and, for this reason, must be managed through passive protection measures. <\/p>\n\n

If the non-combustible pipe is covered with insulating material, in most cases installing a fire collar will be sufficient to ensure proper compartmentalization. For more information on this scenario, please refer to: PASSIVE PROTECTION FOR INSULATED PLASTIC AND METAL PIPE PENETRATIONS USING FIRE-RATING COLLARS<\/strong><\/a> <\/p>\n\n

Below are the two fire-resistant sealing<\/strong> solutions suitable for compartmentalizing uninsulated metal pipe penetrations<\/strong>: CORH VTM and CORH SPC.<\/p>\n\n

Intumescent paint: CORH VTM<\/strong><\/a><\/h2>\n\n

CORH VTM<\/strong> intumescent paint, a water-based synthetic resin paint, is designed to provide fire protection for uninsulated steel, cast iron, or copper pipe penetrations. When exposed to high temperatures, the coating forms a durable thermal insulation layer<\/strong> that protects the pipe by inhibiting the spread of fire by induction. <\/p>\n\n

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ETA-certified up to EI 120<\/strong>, CORH VTM fire-resistant paint is easy<\/strong> to apply<\/strong> directly on-site with a brush or trowel, for both vertical and horizontal penetrations. CORH VTM fire-resistant paint is available in cartridges or buckets, depending on the number of openings to be protected. <\/p>\n\n

To view the technical data sheet and certificates for the CORH VTM, go to: CORH VTM – TECHNICAL DATA SHEET<\/strong><\/a>. <\/p>\n\n

SPECIFICATION ITEM<\/strong> for uninsulated metal pipes CORH VTM<\/strong>Supply and application of CORH VTM synthetic resin-based intumescent paint with fire resistance ratings up to EI 120, to be applied to both sides of penetrations by uninsulated metal pipes (steel, cast iron, copper). ETA-certified and CE-marked. <\/p>\n\n

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