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| UWR : Ultra weatherability resin |
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Photo-degradation of polymer is mainly caused by radicals induced by UV
irradiation. Intimate binding to the host polymer of hindered amine,
which can quench radicals and activated oxygen, makes the function of
hindered amine permanently efficient.
Radicals are induced by not only UV irradiation but also water and
oxygen located on the surface of pigments. As illustrated the following
equations, water and oxygen molecules are converted into hydroxyl and
perhydroxyl radicals by TiO2-photo- catalyzed oxidation. Therefore, the exclusion of water from
paint films restrains the Photocatalyzed oxidation and
photo-degradation of polymers.
UWR based paints demonstrated the same level of weatherability as fluorocarbon
based paints due to the synergistic effect of hindered amine binding to the host polymer and hydrophobic properties of UWR.
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| Lineup of UWR |
| - GENERAL TYPES - |
| Water - borne |
UWR E Series (Emulsion) |
| Solvent - based |
UWR S-2000 Series (Ambient cure & Thermosetting) |
| UWR S-5000 Series (Thermoplastic) |
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| - SPECIAL TYPES - |
| Solvent - based |
UWR C-3000 Series (Organic - inorganic hybrid) |
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| UWR C-3000 Series are organic-inorganic hybrid type polymers combined with HALSHYBRID polymer and organo-colloidal silica. These polymers show excellent weatherability and dirt removability. |
| *Solvents for HALSHYBRID POLYMER can be replaced to the other solvents which are not HAPS. |
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| Inquiry of UWR |
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| UWR |
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| Product |
Principal
Component |
Features |
Major
Types |
Example of Application |
| UWR E |
Waterborne |
Excellent weatherability which was previously unattainable with conventional acrylic emulsion can be obtained. |
E-133
E-220
E-771SI |
For topcoat of industrial maintenance, architectural design construction, product refinishing, application and transportation, etc. |
| UWR S |
Solvent-based |
Excellent weatherability and flexibility which was previously unattainable with conventional acrylic resin can be obtained, especially cured by polyisocyanates. |
S-2816
S-2818
S-2983
S-2740 |
For architectural coatings, industrial metal coatings, coil coatings, wood coating, etc. |
| Excellent weatherability and flexibility can be obtained, used for one package coatings |
S-5141 |
For architectural coatings |
| UWR C |
Solvent-based, Organo-colloidal silicas are combined |
In addition of excellent weatherability and flexibility, inorganic characteristics such as hardness, mar resistance and dirt removability can be obtained. |
C-3600 |
For architectural coatings, industrial metal coatings, etc. |
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