Problem with Zincosil (zinc spray paint) !

[Ady_Sandor]

Hello,
I had covered yesterday afternoon a new metal cabinet for my tools.
The steel used is new without any rust and before painting was cleaned and degreased with solvent.
For painting I said I use ZINCOSIL for better protect against rust and especially as it is based on zinc.
This Zincosil has a silver-shiny, but I have never used zinc spray before.
The problem is: I went today (after ~24 hours) to see if it's dry, but surprise - I got in touch with "glitter" or tiny silver dots on the fingers (it disappear if wash with soap and water) and don't know what is the cause for that. In theory must have been already dry (outside was more than 20 degrees celsius).
Someone told me that those are actually glitter in zinc content.
I do not know what to think, is still fresh paint zinc or film?
Annoying is the fact their are to imagine that anything I put in the closet will make silver.
Here are some product specifications:
Cold Zinc spray suitable for retouches on welded or previously galvanized parts (railings, galvanized structures, parts of bodywork, iron parts exposed to atmospheric agents).

- Elevated covering power, it forms a film of about 30 microns with one spray
- Good resistance to oxidation. (it resists for a lot of time to salty fog test)
- It forms an elastic film that sticks on any surface protecting it from oxidation
- It has a clear tonality very similar to heat galvanization
- It dries quickly (3 minutes in surface) and it does not drip
- It can be overpainted or left as a final protection
- High resistance to abrasion

I'm asking those who have used Zincosil before to give me an opinion / advice and what should I do?
Thank you.

 

[brightspark]

its not the best of stuff to coat things with on its own it realy needs a good enamel topcoat on top.i painted some sheets with it and still get metal flakes of it years later its allright for gates and exposed metal ect but not the best for tools

 

[tlovatt]

Zinc sprays are a waste of time, there is not enough zinc in them. Products such as galvafroid are reasonably effective, not as good as proper hot dip galvanising, but often good enough.

As a general rule, if it comes out of a nozzle its only paint as there will be a very low zinc content. Try picking up a tin of Galvafroid and you will realise how heavy it is due to the zinc content.

 

[Nick Jackson]

I sprayed a test piece of metal with Bilt-Hamber's Electrox (Zinc Spray) and left it on the garden wall nearly 2 years ago. To date there hasn't been a single speckle of rust appearing so I'm inclined to believe them when they say it contains 90% zinc. I've also used a similar Mipa zinc spray more recently with similar results so far.

I use zinc spray mostly for immediate application after doing any welding/metal work.

 

[tlovatt]

It may have 90% zinc by weight in the final dried product, but zinc is heavy - you should look at zinc by volume. Go and pick a tin of Galvafroid up and you will see the difference, if the test piece was just left alone on a wall then any paint finish should provent rust, the idea of zinc coatings is that they have some self healing properties in the event of minor damage.