Hello!
Since we were just discussing this, I would also like to hear about your experience (I couldn’t find anything online): What actually happens if you apply the second coat of topcoat too quickly when painting a galvanized metal column (equipment: brush and acrylic-alkyd paint in RAL 7016)? The can states surface dry after 1 hour (at current temperatures) and recoatable after 12 hours. But as I said, what really happens if you repaint over the first coat after only 1 hour?
Best regards,
joho78
Since we were just discussing this, I would also like to hear about your experience (I couldn’t find anything online): What actually happens if you apply the second coat of topcoat too quickly when painting a galvanized metal column (equipment: brush and acrylic-alkyd paint in RAL 7016)? The can states surface dry after 1 hour (at current temperatures) and recoatable after 12 hours. But as I said, what really happens if you repaint over the first coat after only 1 hour?
Best regards,
joho78
Yes.
Do you know how to almost completely avoid them and achieve a surface close to industrial paint quality? Roll the paint on with a roller, then immediately smooth it very lightly with a fine-bristle brush—really very lightly. If necessary, thin the paint slightly; it spreads better that way. It really works. You can almost get piano finish quality. Karsten
Do you know how to almost completely avoid them and achieve a surface close to industrial paint quality? Roll the paint on with a roller, then immediately smooth it very lightly with a fine-bristle brush—really very lightly. If necessary, thin the paint slightly; it spreads better that way. It really works. You can almost get piano finish quality. Karsten
I’m just thinking about how someone in my neighborhood got a new fence made of galvanized metal. There was actually talk that you’re only allowed to paint it after seven years (!). I found that a funny idea: all new Audis would only come in silver.
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A galvanized part can be treated with any surface finish immediately after delivery to the private customer, however you like.
If it was electro-galvanized, it will rust outdoors. If it was hot-dip galvanized, it is directly intended for outdoor use and will last a very long time. It will fail only if the hot-dip galvanizing is damaged in certain spots (e.g., scratched). The surface is brittle and can crack, for example during bending or similar processes.
If you don’t want to deal with rust, buy stainless steel (VA). The funny thing is, stainless steel costs the same (or only slightly more) than steel plus surface treatment when purchased. If I could somehow make a fence from semi-finished products (I can’t weld, and a friend would cost money), I would definitely set up a V4A stainless steel fence and be protected against direct seawater exposure.
Metals are usually not painted with a brush and similar tools, but sprayed. In mechanical engineering, parts are normally powder coated, because this surface finish is very resistant to impact and abrasion. However, it is not exactly cheap.
If it was electro-galvanized, it will rust outdoors. If it was hot-dip galvanized, it is directly intended for outdoor use and will last a very long time. It will fail only if the hot-dip galvanizing is damaged in certain spots (e.g., scratched). The surface is brittle and can crack, for example during bending or similar processes.
If you don’t want to deal with rust, buy stainless steel (VA). The funny thing is, stainless steel costs the same (or only slightly more) than steel plus surface treatment when purchased. If I could somehow make a fence from semi-finished products (I can’t weld, and a friend would cost money), I would definitely set up a V4A stainless steel fence and be protected against direct seawater exposure.
Metals are usually not painted with a brush and similar tools, but sprayed. In mechanical engineering, parts are normally powder coated, because this surface finish is very resistant to impact and abrasion. However, it is not exactly cheap.
M
meister keks16 May 2017 00:13Having it powder coated would have caused me significant extra costs.
I was able to paint it wonderfully with a roller. The appearance is very close to powder coating.
I was able to paint it wonderfully with a roller. The appearance is very close to powder coating.
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