Chrome-free sealing agent
A technology of sealing agent and wetting agent, applied in the direction of metal material coating process, etc., can solve the problems that can not be used for zirconium treatment, cannot be treated with zirconium, and the anti-corrosion ability is reduced, so as to achieve low cost, protection of metal corrosion, The effect of reducing surface tension
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Embodiment 1
[0036] A chrome-free sealer consisting of the following components by weight percentage:
[0037] Sodium silicate 22%;
[0038]Sodium nitrite 6%;
[0039] Potassium fluozirconate 1%;
[0040] Benzotriazole 0.1%;
[0041] Lauryl dimethyl benzyl ammonium chloride 0.5%;
[0042] Hydroquinone 0.1%;
[0043] wetter8030 0.1%
[0044] Lauryl alcohol ester 0.001%
[0045] Deionized water balance
[0046] The pH value was adjusted to 7.0 with citric acid, and the test results are shown in Table 1 and Table 2.
Embodiment 2
[0048] A chrome-free sealer consisting of the following components by weight percentage:
[0049] Sodium silicate 25%;
[0050] Sodium nitrite 7.0%;
[0051] Potassium fluozirconate 1.5%;
[0052] Benzotriazole 0.7%;
[0053] Lauryl dimethyl benzyl ammonium chloride 0.8%;
[0054] Hydroquinone 0.2%;
[0055] wetter8030 0.1%
[0056] Lauryl alcohol ester 0.004%
[0057] Deionized water balance
[0058] The pH value was adjusted to 7.5 with citric acid, and the test results are shown in Table 1 and Table 2.
Embodiment 3
[0060] A chrome-free sealer consisting of the following components by weight percentage:
[0061] Potassium silicate 28%;
[0062] Sodium nitrite 8.0%;
[0063] Ammonium Fluozirconate 2.0%;
[0064] Herotropine 0.7%;
[0065] Cetyl Octyl Dimethyl Ammonium Bromide 0.8%;
[0066] Catechol 0.2%;
[0067] wetter8030 0.2%
[0068] Lauryl alcohol ester 0.004%
[0069] Deionized water balance
[0070] The pH value was adjusted to 8.0 with citric acid, and the test results are shown in Table 1 and Table 2.
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