Intumeszenz-Beschichtungen

So bleibt Stahl kühl

Ein Intumeszenz-System ist eine Kombination aus mehreren Verbundstoffen, die im Falle eines Brandes aufgrund des Temperaturanstiegs gemeinsam reagieren und einen Kohlenstoffschaum bilden. Dieser Schaum erreicht eine Dicke, die 10 bis 100 Mal so dick ist wie die ursprünglich aufgetragenen Beschichtung, und die das Trägermaterial durch seine geringe Wärmeleitfähigkeit isoliert. Dieser Vorteil kann insbesondere für Stahlrahmenkonstruktionen sinnvoll sein, da sie im Brandfall ihre strukturelle Stabilität verlieren können, wenn die Temperaturen 500 °C übersteigen. Solche Konstruktionen befinden sich üblicherweise in Flughäfen, Einkaufszentren, Krankenhäusern und Bürokomplexen.

Als Hauptlieferant des wichtigen Inhaltsstoffes Ammoniumpolyphosphat verfügt Clariant über umfassende Erfahrungen in Bezug auf Rohstoffe für Intumeszenz-Beschichtungen und in der Entwicklung von Formulierungen für wasser- oder lösemittelhaltige Intumeszenz-Beschichtungen.

Die Exolit® AP Produkte sind feine weisse Pulver auf Ammoniumpolyphosphat-Basis.

 

Service für unsere Kunden

Clariant ist seit über 30 Jahren führender Anbieter von Flammschutzmitteln auf Phosphorbasis. Dadurch sind wir in der Lage, unsere Kunden perfekt zu unterstützen und geeignete Intumeszenz-Formulierungen für sie zu entwickeln.

In unserem Labor in Knapsack (Deutschland) können wir die Leistung verschiedenster Formulierungen in Standard Brandprüfungen testen. So unterstützen wir unsere Kunden bei der Entwicklung neuer Formulierungen, damit sie den neuen Standards und Herausforderungen in Bezug auf Brandschutzbestimmungen gerecht werden.

Klaus Bender

Klaus Bender

Contact Person

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Relevante Produkte

  • Exolit® AP Produkte

    • Exolit® AP 420

      Exolit AP 420 is an approx. 45 % clear to cloudy aqueous solution of a short-chain ammonium polyphosphate. Mehr

    • Exolit® AP 422

      Exolit AP 422 is a fine-particle ammonium polyphosphate (phase II) produced by a special method. The product is largely insoluble in water and completely insoluble in organic solvents. It is colourless, non-hygroscopic and non-flammable. Mehr

    • Exolit® AP 423

      Exolit AP 423 is a fine-particle ammonium polyphosphate produced by a special method. The crystal modification is phase II. The product is largely insoluble in water and completely insoluble in organic solvents. It is a white powder, non-hygroscopic and non-flammable. Mehr

    • Exolit® AP 428

      Exolit AP 428 is a fine-particle ammonium polyphosphate produced by a special method. The product is largely insoluble in water and completely insoluble in organic solvents. It is colourless, non-hygroscopic and non-flammable. Exolit AP 428 differs from most other commercial products in the following ways: - greatly reduced solubility in water - lower viscosity in aqueous suspensions - lower viscosity in PU polyol suspensions. Mehr

    • Exolit® AP 435

      Exolit® AP 435 is a fine-particle ammonium polyphosphate (phase II) optimized for low viscosity in aqueous suspension and intumescent coatings. The product is largely insoluble in water and completely insoluble in organic solvents. It is colourless, non-hygroscopic and non-flammable. For more information see our Intumescent Coating Videos . Mehr

    • Exolit® AP 462

      Exolit AP 462 is a product based on ammonium polyphosphate. The crystal modification is phase II. It is manufactured from ammonium polyphosphate by micro-encapsulation with melamine resin according to Clariant’s own method. Exolit AP 462 is a fine-particle white powder with very low solubility in water, even at elevated temperatures. It is completely insoluble in organic solvents. The product is non-hygroscopic and non-flammable. Mehr

    • Exolit® AP 740 F

      Exolit AP 740 F is a white free flowing powder. It is a non-halogenated additive flame retardant based on ammonium polyphosphate which develops its effectiveness through phosphorus/nitrogen synergism. Exolit AP 740 F differs in its mode of action from chlorine or bromine containing flame retardants by achieving its effect through intumescence. The flame retarded material foams on exposure to flame. The carbon foam layer so formed protects the polymer through its heat-insulating effect and reduces further oxygen access. Mehr

    • Exolit® AP 740

      Exolit AP 740 is a white free flowing powder. It is a non-halogenated additive flame retardant based on ammonium polyphosphate which develops its effectiveness through phosphorus/nitrogen synergism. Exolit AP 740 differs in its mode of action from chlorine or bromine containing flame retardants by achieving its effect through intumescence. The flame retarded material foams on exposure to flame. The carbon foam layer so formed protects the polymer through its heat-insulating effect and reduces further oxygen access. Mehr

    • Exolit® AP 742

      Exolit AP 742 is a non-halogenated, additive flame retardant based on ammonium polyphosphate, which develops its effectiveness through a phosphorus/nitrogen synergism. Exolit AP 742 differs in its mode of action from other flame retardant technologies (e.g. chlorine- or bromine-containing flame retardants and minerals) by achieving its effect through intumescence. The flame retarded material foams on exposure to flame. The carbon foam layer so formed protects the polymer by its heat-insulating effect and reduces further oxygen access. Mehr

    • Exolit® AP 750

      Exolit AP 750 is a non-halogenated flame retardant based on ammonium polyphosphate as main component, which develops its effectiveness through phosphorus/nitrogen synergism. In contrast to similar competitive material, it shows high processing stability. Exolit AP 750 differs in its mode of action from non phosphorus-based flame retardants (e. g. brominated, chlorinated or mineral FRs like ATH) by achieving its effect through intumescence. Material containing Exolit AP 750 will foam on exposure to flame. The carbon-rich foam layer so formed will protect the polymer and in many cases the substrate below through its heat-insulating effect, reduces further oxygen access and prevents dripping in case of a thermoplastic based formulation. Beyond the primary effects on fire behavior such as reduction of flame propagation rate, rate of heat release, dripping behavior, residual lengths of test specimens after flame tests etc., positive secondary fire effects such as low smoke density, no release of corrosive off-gases, lower formation of toxic smoke gases are of great interest. Mehr

    • Exolit® IFR 36

      Exolit IFR 36 is a non-halogenated flame retardant based on ammonium polyphosphate, which develops its effectiveness through phosphorus/nitrogen synergism. Exolit IFR 36 differs in its mode of action from chlorine- or bromine-containing flame retardants by achieving its effect through intumescence. The flame retarded material foams on exposure to flame. The carbon foam layer so formed protects the polymer through its heat insulating effect and reduces further oxygen access. Mehr

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