Tylac® 7506

Tylac 7506 is a vinyl-acetate ethylene copolymer powder that is readily dispersible in water and forms a stable emulsion. This resin is soft and flexible, because of its relatively high ethylene content. Its glass transition temperature is below freezing point. This redispersible powder is especially recommended for blending with inorganic binders such as cement, gypsum, and hydrated lime, or as a sole binder for making construction adhesives and seals.

Tylac 7506 is recommended for use in tile adhesives, plasters, and thermal insulation systems. It enhances the adhesion, flexural strength, plasticity, workability of modified compounds without appreciably affecting flow, thixotropy or water retention. It is therefore compatible with mortar additives used to achieve special processing characteristics. The water repellency of construction materials enhanced with Tylac 7506 depends on the formulation. Additives such as antifoam agents, thickeners, anti-flow additives, flow improvers, superplasticizer agents, retarders, water retention agents or general surfactants can significantly affect the water repellency. The water-repellent properties are much more pronounced with silicate fillers than with carbonates. Because of its low glass-transition temperature, Tylac 7506, if added in sufficient amounts, imparts excellent plasticity to building materials, even at low temperatures. If added in very high amounts, Tylac 7506 prevents the penetration of water. However, higher plasticity of compositions enhanced with Tylac 7506 is only observed when the redispersible powder is added in amounts over 5%, based on total weight.

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Tylac® 7506

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