Nuvis FX 1100

Hydrofobic urethane polymer

Condea Servo

Á÷±äµ÷ÕûÆ÷/Ôö³í >> ÁªºÏ >> ÊèË®ÒÒÑõ¾Û°·Ö¬ (HEUR) Rheology Modifier/ Thickener >> Associative >> Hydrophobically modified ethoxylate urethane (HEUR) ±ûÏ©Ëá/±ûÏ©ËáÑÎÊ÷Ö¬ Acrylic/Acrylate Resins ÒÒÏ©»ù Vinyl Í¿²ã >> ÎÞÈÜ¼Á/ ¸ß¹ÌÌå Coatings >> Solvent-Free/ High-Solids Í¿²ã >> Ë®Éú Coatings >> Waterborne NUVIS Thickening Agents, Rheology Modifiers NUVIS FX 1100 PUR Thickener for Aqueous Systems, Powder GENERAL INFORMATION NUVIS FX 1100 is a high efficiency polyurethane thickener developed for use in aqueous systems. The product is supplied as a white free-flowing powder and enables formulations of odourless paints free of organic solvent APPLICATION AND PROPERTIES NUVIS FX 1100 is readily dissoluble in water and water/organic solvent mixtures. It has been especially designed for use in powdered formulations, such as adhesives and in aqueous coatings. The unique composition of NUVIS FX 1100 allows its use in formulations for odourless aqueous coatings free of organic solvents. Although NUVIS FX 1100 may be used in pure aqueous systems without any organic solvent it is compatible with glycols, glycol derivatives and various coalescing agents that may be used in the coating formulation. As a rule, water-soluble organic solvents reduce the low-shear viscosity and non-soluble organic solvents and coalescing agents (e.g., SER-AD FX 511) will increase the low- and high-shear viscosity. Nonionic thickeners such as NUVIS FX 1100 play a significant role in controlling rheology before, during and after the application of dispersion paints. Compared to conventional thickeners. NUVIS FX 1100 increases the high shear viscosity which means: ? improved brushability ? higher film build ? improved edge covering ? alkyd-like appearance Low shear viscosity is reduced, resulting in: ? improved flow and levelling ? improved appearance NUVIS FX 1100 is a hard urethane-based polymer. The hardness as well as the water resistance of the dry coating may be positively influenced when using NUVIS FX 1100 instead of cellulosic, polyacrylic or other urethane thickeners. NUVIS FX 1100 reduces the roller spattering properties of the paint, even when the product is used in combination with cellulosic thickeners. NUVIS FX 1100 can absorb moisture from the atmosphere, as do other water-soluble materials. Therefore it is necessary to store NUVIS FX 1100 dry. NUVIS FX 1100 is applicable to many aqueous systems or water dispersable powders. It is compatible with most dispersion paints based on polyacrylic-, polyvinylacetate homopolymers, polystrene acrylic-, polystrene butadiene copolymers and most terpolymers. The product may be used in combination with cellulosic thickeners however, the effect on paint stability should be thoroughly checked. The product is also totally compatible with pigment dispersing agents NUOSPERSE FX 504 and NUOSPERSE FX 605. FEATURE -> CONSEQUENCE Based on a poly-ether polyurethane -> provides longterm viscosity stability -> improves weathering -> less sensitive to hydrolysis -> decreased water sensitivity Increases mid and high shear viscosity -> more alkyd like rheology -> higher film build and opacity -> improved flow and levelling characteristics 100% active powder -> can be used in NO-VOC, low odour systems -> frost proof DOSAGE Usually, NUVIS FX 1100 is added as an aqueous pre-gel or is added to the milling paste prior to the addition of the pigments and extenders. However, in some cases it will be possible to add NUVIS FX 1100 as a powder under careful mixing. In formulations where it is added as a dry powder, NUVIS FX 1100 is just mixed with the various other components. This procedure enables the formulation of coatings with high solids contents. NUVIS FX 1100 dissolves quickly in water or in water/organic solvent mixtures. We suggest the following pre-gel: 97% water 3% NUVIS FX 1100 Add NUVIS FX 1100 carefully under mixing 100% NUVIS FX 1100-gel The viscosity of the aqueous solution increases rapidly with concentration. In dispersion paints a concentration between 0.2 and 1.0% NUVIS FX 1100 will generally be sufficient when used as the sole thickening agent. However, it is recommended to determine the optimum dosage for each case individually High efficiency polyurethane thickener for use in aqueous coatings based on polyacrylic, polyvinylacetate homopolymers, polystyrene acrylic, polystyrene butadiene copolymers and most terpolymers or in water dispersable powders. Compatible with glycols and various coalescing agents. May be used in combination with cellulosic thickeners. Provides longterm viscosity stability, improves weathering, less sensitive to hydrolysis, decreases water sensitivity. Increases mid and high shear viscosity, provides more alkyd like rheology, improves film build and opacity, improves flow and levelling characteristics. Can be used in NO-VOC, low odour and frost proof aqueous coatings free of organic solvents . Added as an aqueous pre-gel or added to the milling paste prior to the addition of the pigments and extenders. Dissolves quickly in water or in water/organic solvent mixtures. Recommended usage level: pre-gel, 3% in 97% water. The viscosity of the aqueous solution increases rapidly with concentration. In dispersion paints, 0.2 - 1.0% when used as the sole thickening agent.