A kind of processing method of the polyurethane finish paint that is used for chemical storage tank
A technology of polyurethane topcoat and processing method, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of non-foaming, insufficient paint film thickness, poor weather resistance, etc., and achieve good foaming and weather resistance. Effect
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Embodiment 1
[0012] In this embodiment, the weather-resistant polyester resin that can react with -NCO is selected from the special polyester resin (Desmophen 1652) produced by German Bayer company for automotive topcoats, and the vacuum microspheres are 3M vacuum microspheres and 3M hollow glass microspheres, which are weather-resistant Select Ciba 1130 additive produced by Ciba as the anti-pollution additive, BYK 3700 additive of the German BYK brand as the anti-pollution additive, fumed silica as the nano-additive, and propylene glycol as the environmentally friendly organic solvent for the preparation component and curing agent component. Methyl ether acetate, high weather resistance polyurethane curing agent chooses Bayer N3390 curing agent of German Bayer brand, and high flexibility polyurethane curing agent chooses Bayer N75 curing agent of German Bayer brand.
[0013] The processing method of the present embodiment comprises the following steps:
[0014] 1) Take 10 parts of weather...
Embodiment 2
[0019] In this embodiment, the weather-resistant polyester resin that can react with -NCO is selected from the special polyester resin (Desmophen 1652) produced by German Bayer company for automotive topcoats, and the vacuum microspheres are 3M vacuum microspheres and 3M hollow glass microspheres, which are weather-resistant Select Ciba 1130 additive produced by Ciba as the anti-pollution additive, BYK 3700 additive of the German BYK brand as the anti-pollution additive, fumed silica as the nano-additive, and propylene glycol as the environmentally friendly organic solvent for the preparation component and curing agent component. Methyl ether acetate, high weather resistance polyurethane curing agent chooses Bayer N3390 curing agent of German Bayer brand, and high flexibility polyurethane curing agent chooses Bayer N75 curing agent of German Bayer brand.
[0020] The processing method of the present embodiment comprises the following steps:
[0021] 1) Take 60 parts of weather...
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