FIELD: chemistry.
SUBSTANCE: present invention relates to an intumescent fire-retardant composition containing low-molecular siloxane rubber, a swelling system comprising ammonium polyphosphate and pentaerythritol, and hydrogenated tall oil. Disclosed composition can be used as a single-component sealant.
EFFECT: invention makes it possible to impart thixotropic properties to an intumescent fire-retardant composition, which enable to apply it on any surfaces, including vertical, inclined, ceiling without formation of drips and cracking.
11 cl, 1 dwg, 2 tbl
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