Dispersions - Products and Applications - Bayercoatings.com

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Bayhydrol ® U: Elastic and durable polyurethane dispersions for waterborne 2K & 1K PUR stoving systems BAYHYDROL ® U– AQUEOUS POLYURETHANE-POLYOL DISPERSIONS Non-volat. content Neutral. Organic cosolvent OH content 1K 2K Auto Auto-refinish Industrial Wood, Plastic Parquet Floor Can/Glass Properties approx. [%] agent content [%] in supply form [%] on solids stoving OEM large vehicles metal furniture coatings trade wall coating U 241 41 DMEA NMP 4.5 2.5 l l l l l l Elastic polyurethane-polyol, suited for primers and topcoats, solvent-free version under development U 355 55 DMEA NMP 2* 1.5 l l l Very elastic, for soft-feel coatings U XP 2239 35 DMEA NMP 4.7 4.6 l l l l Good water resistance; in combination with Bayhydur ® BL 5335 for glass coatings with good alkali resistance U XP 2698 52 DMEA 0 1.5 l l l l l l NMP- and solvent-free version of Bayhydrol ® U 355 U XP 2750 43 DMEA 0 3.6 l l l l l l l l For high gloss, clear and pigmented topcoats and primers, outstanding weather resistance, solvent-free marked self-healing effect after scratching U XP 2755 38 DMEA 0 3.0 l l l l l l l Very fast drying, high hardness & chemical resistance. Excellent grain accentuation on wood, solvent-free U XP 2757 52 DMEA 0 1.8 l l l l l l For plastic coatings incl. soft-feel, universal adhesion profile on plastics, solvent-free, good hydrolysis resistance, long potlife U XP 2766 40 DMEA 0 4.0 l l l l l l Very high gloss, especially for pigmented topcoats. Fast drying, chemical resistance and hardness development, low thermoyellowing, solvent-free U 2841 XP 41 DMEA 0 2.7 l l l l l l Solventfree version of U 241 * l l NMP-free alternatives avaiable especially suitable suitable DISPERSIONS 19
BAYHYDROL ® UV – RADIATION CURING POLYURETHANE DISPERSIONS * Flow time (similar to DIN 53211) – 4 mm cup l especially suitable l suitable l WATERBORNE RADIATION CURING RESINS. The most promising technology within the variety of environmentally friendly wood and plastic coating systems are UV curing PU dispersions. Coatings based on these exhibit the highest growth rates in wood coatings markets. The key property of this type of coating is its similarity to conventional PU coatings – similar targets can be reached by similar application methods, at similar or faster drying times. Type Supply form [%] in Flow time at 23 °C (s)* Furniture Plastics Cork Parquet Industrial coatings PVC Properties 2282 PUR Dispersion 39 in water < 50 l l l l l High chemical resistance, good grain wetting, physical drying. For all-around use (multicoat). 2317 PUR Dispersion 37 in water < 80 l l l l l High wet film transparency, good grain wetting, physical drying 2280 PUR Dispersion 39 in water < 90 l l Outstanding physical drying, good standard product for pigmented coatings. XP 2687 PUR Emulsion 49 in water 300 mPas l l l l Grain wetting, high solids, good adhesion; especially as primer on wood 2689/1 XP PUR Dispersion 42 in water < 50 l l l l Highest crosslink density, low physical drying. Especially for clear coats or single layer metallic coats. XP 2690 PUR Dispersion 39 in water < 80 l l l l l Weather-stable, tough; especially suited for wood exterior applications, very fast water release 2720/1 XP PUR Dispersion 40 in water < 70 l l l l l l Combines physical drying and highest crosslink density; especially for pigmented systems; thermoformable before UV XP 2721 PUR Dispersion 38.5 in water 12 - 30 l l l l Tack-free before UV-curing; very good mechanical strength and chemical resistance, easy matting XP 2736 PUR Dispersion 40 in water < 50 l l l l l Flexible and tough, excellent adhesion on plastics and textiles; especially for flexible formulations and base coats XP 2775 PUR Dispersion 40 in water < 80 l l l l l Excellent chemical and stain resistance, in white pigmented topcoats or matt clearcoats 2792 XP PUR Emulsion (cationic) 39 in water < 50 l l Excellent grain wetting and tannin blocking, good adhension; especially suitable as primer for wood 2818 XP PUR Dispersion 37 in water < 50 l l l l l DISPERSIONS 21
Page 1 and 2: Bayer MaterialScience AG 51368 Leve
Page 3 and 4: B U S I N E S S U N I T C A S CLOSE
Page 5 and 6: BAYHYDROL ® A - AQUEOUS ACRYLIC PO
Page 7 and 8: l l especially suitable suitable Ba
Page 9: Bayhydrol ® UH: Fast drying polyur
Page 13 and 14: BAYHYDUR ® BL - BLOCKED POLYISOC Y
Page 15 and 16: DESMODUR ® - LOW VISCOUS POLYISOC
Page 17 and 18: Baybond ® types are generally used
Page 19 and 20: Dispercoll ® U grades are aqueous,
Page 21 and 22: The new Bayer Dispercoll ® S nano
Page 23 and 24: M O R E T H A N J U S T P R O D U C

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