Customer

UV-curing unsaturated polyesters and urethane acrylates (Desmolux®)

For non-waterbased parquet coating systems Bayer MaterialScience offers a series of unsaturated polyesters and urethane acrylates.


Desmolux® polyester acrylates

Type
Supply form in %
Viscosity
mPas
at 23°C
Characteristics
Desmolux® XP 2732
Polyester acrylate
100
2500
Low-viscosity, clear and pigmented UV coatings without monomers or reactive thinners
Desmolux® XP 2733
Polyester acrylate
100
18000
High reactivity and crosslinking density for highly resistant coatings
Desmolux® XP 2744
Polyester acrylate
100
5500
Good combination of elasticity and resistance to household chemicals



Desmolux® resins based on unsaturated polyesters (UP) in reactive diluents

Type
Supply form in %
Viscosity
mPas
at 23°C
Characteristics
Desmolux®
P 175 D
Hard, gloss polyester
70 in DPGDA*
17000
For clear and pigmented primers and topcoats; good sandability, adhesion and intercoat adhesion; improves scratch resistance of UV topcoats
Desmolux®
VP LS 2381
Hard, unsaturated polyester
70 in DPGDA*
12000
For clear and pigmented primers and topcoats; improved reactivity, good adhesion and sandability
Desmolux®
XP 2490
Tough, gloss polyester
76 in DPGDA*
13000
For clear and pigmented primers and topcoats with high gloss or
matt coatings, excellent sandability
*) DPGDA = Dipropylenglycoldiacrylat
    Reactive diluents are solvent-like substances that reduce the viscosity of the formulation and are polymerised by high-intensity UV-light. The coating formulations can be applied and cured without any solvent evaporation and with the highest line speeds exceeding 20 meters per minute in some cases. Unsaturated polyesters diluted with an acrylic monomer provide additional benefits to traditional unsaturated Polyesters, while maintaining their advantages such as thick layer application, mattability, outstanding sandability and very good adhesion.

    Select starting formulations:

    RR 6696A pigmented sealer, applied by a curtain coater, shows excellent adhesion and a very good sandability (Desmolux® P 175 D)

    RR 6697Sealer with high reactivity, good sandability and transparency
    (Desmolux® VP LS 2381)

    RR 6695Matte top coat for roller application with excellent balance of properties
    (UV-reactivity / price) (Desmolux® VP LS 2381)



    Desmolux® resins based on unsaturated polyesters (UP) in reactive diluents

    Type
    Supply form
    in %
    Viscosity
    mPas
    at 23°C
    Characteristics
    Desmolux® U 100
    Unsaturated aliphatic urethane acrylate
    100 % (free of reactive monomers)
    7500
    Good chemical and mechanical resistance, high elasticity
    Desmolux® U 200
    Unsaturated aliphatic urethane acrylate
    100 % (free of reactive monomers)
    8000
    Good chemical and mechanical resistance, high elasticity.
    Desmolux® XP 2587
    Aliphatic urethane polyester
    100 %
    1500
    Yields hard films with good sandability, brilliance, good mechanical, chemical and yellowing resistance
    Desmolux® U 500
    Unsaturated urethane acrylate
    100 %
    6000
    High flexibility, good coin test behavior and good abrasion resistance
    *) DPGDA = Dipropylenglycoldiacrylat

    Recommendation for formulations please find at this page


    Technical data and application information in this product overview and brochure

    Raw materials for Wood and Furniture Coatings

    Produktbroschüre - UV-Systeme
    UV-Systems: Products and Applications

    Präsentation: How to decide on the right primer for wood RadTech 2011

    Share this site:
    Delicious Digg Facebook Google LinkedIn Mister Wong MySpace StudiVZ Stumpleupon Twitter Yahoo