FT-PVDF spray series fluorocarbon coating

This series of fluorocarbon coatings are mainly used for coating of aluminum alloy, galvanized steel, stainless steel and other substrates. Such as aluminum alloy curtain wall panels, aluminum profiles and stainless steel plates, etc., are widely used in shopping malls, stadiums, airports, television towers, office buildings, shopping malls and other outdoor decoration, to protect and beautify the building, while maintaining long-lasting, bright colors .

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A detailed description

Product description

This series of fluorocarbon coatings are made of polyvinylidene fluoride (PVDF) as the main raw material. The largest electronegativity of fluorine atoms in polyvinylidene fluoride (PVDF) resin forms an abnormally stable CF bond, plus symmetry The molecular structure of PVDF makes PVDF have extraordinary chemical stability, resistance to UV photolysis and worrying insulation, so PVDF polymer alloy coatings show excellent weather resistance, acid and alkali resistance, and chemical resistance. Antifouling.

This series of fluorocarbon coatings include supporting primers, topcoats, varnishes, thinners, etc. Depending on the color, gloss, pigments used, and application requirements of the topcoat, three-layer paint and two-layer paint without varnish are available.

Process flow

Substrate --- Degreasing --- Washing ... Alkali etching --- Washing ... Neutralization-Washing-Chemical conversion-Washing-Drying

Primer coating --- drying and leveling ---- coating topcoat --- drying and leveling ... (coating varnish --- drying and leveling) ---- drying --- inspection- -Cover with protective film ---- packaging

Process parameters

Product name	Primer	Finish	Varnish
Product ID	FT—H100	FT—A、B、H	FT—H300
Exterior	Light yellow or off-white dispersion	Various color dispersions	Milky white transparent dispersion
Fineness	〈25UM	〈20UM	〈20UM
Viscosity（Tu 4 # cup）	50-70S,25℃	40-60S,25℃	55-65S,25℃
Solid content（WT%）	48±2	43±2	38±2
Coverage	30㎡/KG Dry film6.5UM	11：5㎡/KG Dry film25UM	17.5㎡/KG Dry film12.5UM
Thinner	Xylene / Western Ketone / Butyl Cellosolve	Xylene / butyl cellosolve	Xylene / butyl cellosolve
Dilution ratio	80/20or blend	90/10或80/20 blend	80/20or blend
Spray viscosity (coated 4 # cup)	16-18 seconds at 25 ℃	18-18 seconds at 25 ℃	15-16 seconds at 25 ℃
Curing temperature	PMT210—230℃	PMT230—235℃ *10—12MN	PMT230—235℃

Note: * refers to the time required for three coatings, one baking or two coatings and one baking on the production line.