| Designed by Hundert Wassar |
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LUMIFLON® was developed and commercialized in 1982 by Asahi Glass as the first solvent-soluble fluoropolymer for coatings that can be cured under room temperature conditions. During this 20 years period, fluoropolymer coatings based on LUMIFLON® have been produced by many coating manufactures worldwide.
LUMIFLON® based coatings maintain excellent appearances (gloss, color) of buildings and other structures for over 20 years, and also protects steel and concrete from sunshine, wind, rain and corrosion. Therefore, LUMIFLON® based coatings reduce the total maintenance cost such as repainting or cleaning. Recently, Asahi Glass has developed environmentally friendly LUMIFLON® grades, such as emulsion and powder grades. |
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Excellent
Weatherability |
LUMIFLON® has good chemical stability as fluoropolymer and shows excellent weatherability compared to other traditional top coatings. |
Soluble in many
common solvents |
LUMIFLON® polymer can be dissolved in various organic solvents. |
| Curable under room temperature |
LUMIFLON® gives you a choice of curing conditions from ambient to high temperatures. (5°C/41F to 230°C/446F) |
| Superior appearance |
LUMIFLON® is a transparent fluoro resin, therefore both clear and enamel coatings are possible. LUMIFLON® also can attain gloss retention over 80%. |
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| FEVE(Fluoroethylene-Alkyl Vinyl Ether)alternative copolymer |
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 : FE |
 : VE |
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Durability |
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R1=Transparency,Gloss,Hardness |
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R2=Flexibility |
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R3=Crosslinkability |
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| R4= |
Pigment compatibility |
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Adhesiveness |
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High durability of the fluoropolymer is based on its C-F bond energy. The C-F bond energy is much larger than the energy of UV rays in sunlight. The C-F bond is capable to strengthen neighbor C-C main chan bond.
*The graphics on the left: The size of a sphere reflects the size of bond energy.
*The graphics on the right: The adult and child figures show each monomer. |
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Fluoroethylene/vinyl ether copolymer (FEVE) comprises alternating sequence of fluoroethylene and several specific vinyl ether units and it is completely amorphous.
This alternating sequence is responsible for the extremely high weather resistance of the resultant paint finishes.The chemically stable fluoroethylene unit protects the neighbor vinyl ether unit, which can be easily attacked by UV rays and other corrosive factors. |
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The weatherability of PVdF itself is high; on the other hand, it is necessary to add acrylic resin in order to formulate PVdF into coatings.
Because acrylic resin is easily attacked by UV rays, the amount of acrylic resin added to PVdF resin is very important. |
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| Florida exposure test on LF-200 |
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| Radiant exposure: |
N/A |
| Test Method: |
ASTM G |
| Type of test: |
DIRECT 30 , DEG SOUTH , OPEN BACK |
| Location: |
Exposed in Miami , Florida |
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| UV: Mj/m2 (295-385nm) |
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Inside of spotted area of the film was shot and upside is surface.
The picture shows that the acryllic melamine film was found to be porous, and thicker than the initial film, about 34µm. On the contrary, there were no significant changes on LUMIFLON® film. |
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