Non-combustible waterborne self levelling epoxy floor
A water-based, water-based technology, used in epoxy coatings, hydrocarbon ammoxidation preparation, and other chemical processes to achieve low emissions, high impact resistance, and no crack formation.
Active Publication Date: 2021-12-14
SIKA TECH AG
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Problems solved by technology
But these coatings develop a matte uneven surface and require a top coat for decorative purposes, and they still generate too much heat when burned to not meet the A2fl fire class according to EN 13501-1
Method used
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Embodiment 1 to 8
[0246] The hardener components for each example were prepared by mixing the ingredients given in Tables 2 and 3 and stored in airtight containers.
[0247] By mixing 3.294 parts by weight (wpt) GY 250, 4.942wpt Epikote TM Resin05447, 0.539wpt DY-E, 0.175wpt emulsifier, and 5.050wpt tap water The resin components for each example were separately prepared and stored in airtight containers.
[0248] A filler component for each example was additionally prepared consisting of quartz sand 0.1 to 0.3 mm and stored in paper bags.
[0249] The resin component, hardener component and filler component were mixed together in the proportions (parts by weight) given in Table 2 and Table 3 by a drilling machine with a stirring bar. The freshly mixed epoxy composition was applied by means of a toothed scraper at a layer thickness of 2 mm to a horizontally placed cement screed slab and allowed to cure for 7 days in normal weather.
[0250] Flow behavior was determined by eye and rated o...
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Abstract
The present invention relates to an epoxy composition including a waterborne hardener component containing an amine functional adduct, which is a reaction product of at least one polyether amine, at least one polyalkylene amine, at least one arylaliphatic or cycloaliphatic amine, at least one polyether epoxy resin and at least one aromatic liquid epoxy resin, a resin component containing at least one liquid epoxy resin and mineral fillers, wherein the composition contains mineral fillers in the range of 85 to 95 weight-% based on the total solids of the composition. The inventive epoxy composition enables floor coatings with low emission, low shrinkage and high impact resistance, which can be applied in a layer thickness of to 3 mm or more in one step, cure to a decorative, faultless and glossy surface without the need to be overcoated and generate a low enough heat upon burning to fulfill the fire classification A2fl according to EN 13501-1.
Description
technical field [0001] Epoxy compositions and their use as floor coatings. current technology [0002] Epoxy floors for decorative purposes are widely used in applications such as industrial floors or parking decks. Such floors are usually produced by mixing the two liquid components, optionally together with the filler component, and then applying the mixed components as a self-leveling coating with a layer thickness of approximately 1 to 3 mm. The finished surface of such floors must be hard, highly resistant to mechanical and chemical attack, and must meet high aesthetic standards, ie a uniform glossy appearance, free from spots, cracks or other defects. If the cured surface does not meet these aesthetic criteria, the floor cannot be used for decorative purposes and must be topcoated with a topcoat, usually applied in a layer thickness of about 0.1 to 0.5 mm. Applying a top coat ensures a high-quality surface, but it also means additional work steps and thus additional ...
Claims
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IPC IPC(8): C08G59/18B32B15/092B32B27/38C07C253/28C08G59/56C08G59/60C08G65/333C08L63/00C09D163/00C09K3/00
CPCC08G59/60C08L63/00C09D163/00C08G59/18C08G59/56C08G65/333C08L2205/035
Inventor A·汤姆森I·马丁L·康拉德D·泰谢特
Owner SIKA TECH AG