7 replies to this topic

[Curley]

I've had my rear subframe galvanised in a hot zinc dip and looking for a advise on how to apply a black top coat. Is there any special steps I need to take before applying a top coat? 

[ukcooper]

any paint you want I guess , how did you stop the frame twisting we tried one time  and it was out by miles...…...if you not tried it on the car I would to see if it fits any more as that's y most people don't do it   ?????????????

Edited by ukcooper, 26 June 2019 - 05:04 PM.

[Daz1968]

The is a special product called t wash, this is applied to the galvanised coating and left approx 1 hour, then washed down with water and dried off. It turns the zinc black and it can then be painted. We use it at work and it is effective.

[DeadSquare]

May suggest that you reconsider painting it black.

 

It is dark under there, and if you ever want to do something, I have found it much more useful to have a lighter colour.

 

I actually paint mine white, but it very soon becomes the colour of the local mud, so my next one will be a sandy colour.

 

I will continue to paint the front subframe and the lower engine bay, white.

[Spider]

Usually with anything that's been Galvanized, you'll have better success in having paint stay put the longer you leave it, with a month being the minimum that's usually recommended.

 

De-gassing it can also help a lot. This is easiest done if you can get it in to an oven at around 120 - 150 Degrees C for about 2 - 8 hours.

[onefastmoke]

Buzzweld "Galv in one" can be painted straight onto galvanised metal   http://www.buzzweld....in-one-gio.html

[Daz1968]

this is the product I was referring to


https://rover.ebay.c...tm/161195724751

[Curley]

ordered 

Edited by Curley, 01 July 2019 - 08:04 PM.