15 replies to this topic

[leepol83]

Can you gravitex over this or is there a better way ?
What’s people’s advice on painting the underside of there cars, I always worry about reactions in the paint!!!!!
Cheers all

[leepol83]

Been reading some more on this and Epoxy primer seems to be the way forward.
So my plan is

.scuff up the black paint that comes on heritage panels
.Epoxy prime the whole floor over the black
.seam seal any joints
.Gravitex the whole floor
.Epoxy prime over the Gravitex
.top coat in car colour

That’s my plan from the info I have gathered up please tell me if it’s wrong!!!!

[myredmini]

Remove all the black panel coating, sometimes rust can be under it, made sure it's well abraded.

Panel wipe it all.

Epoxy prime it.

Red scotch it all throughly.

Clean again

Upol gravitex it.

Once it's dry, you can overcoat in body colour.

If you leave it overnight or more give it a red scotch, clean then paint. No need to Epoxy over the gravitex.

Another option is Epoxy it, then instead of gravitex use tintable upol raptor 2k stonechip. Pour the hardener in, some body colour then apply.

[leepol83]

R right that’s a good idea putting the colour in that’ll save time won’t it, is the stuff any good ?

[leepol83]

On my last mini I had a tin of brushsble top coat mixed up so that I could brush it strait onto the Gravitex it was in snowberry white and was really shiny, would I be able to have Tahiti blue mixed up to brush paint on or would it need laquring afterwards ? Just a thought because it’s metallic that’s all,
If not and I try the raptor stuff what paint is it I need to get to put in it ?
Cheers

[sonikk4]

As per myredmini's post, i would remove the Ecoat, had too many panels from Heritage with spider tracks of rust. Its not worth the grief of painting over this possibility only for rust to come through under the Gravitex.

 

Also Epoxy primer is water resistant so adding another measure of protection in the event of any scraping etc. But whatever its epoxy first, then Gravitex or Raptor.

 

Now as for the seam sealant be wary that is does not react with the primer, do a test piece first.

 

Now if its a metallic paint you are using then there is no reason why you cannot lacquer afterwards.  

[leepol83]

Thank you, the only reason I ask about brush painting is I don’t have any spraying equotment that’s all so brushing would be easer if it’s possible.

[Verderad]

Agree with the removal of black paint on heritage panels. I’ve picked up a full front end for my clubby, been in storage for a while before I got it and it’s covered in rust spiders.

[NDT]

Easiest way to remove it? Wire brush on a grinder?

[leepol83]

Cheers chaps.
Can I get a brushsble metallic paint ( Thahiti Blue)

[sonikk4]

Easiest way to remove it? Wire brush on a grinder?

 

I normally use a DA with a reasonably coarse grit disc Twisted wire cup will do it as well.. 

[jonjosar]

The only problem i forsee using a brush only, is that every coat will need to be well dried before attempting another coat. It will take ages for any coating to go off properly in this weather (unless you have a heated garage)If you could beg , borrow etc a compressor, it would make life a lot easier for you.

I tried Upol gravitex and found it OK but there is a Sikkens body coating available and it seemed a nicer finish. ( sprayed with a schutz gun)

As for seam sealer, Wurth acrylic sealer is fantastic. Very easy to brush a nice factory finish in it with a seam sealer brush. My only gripe is that there isnt much body to it so its difficult if you want to try and hide any imperfections. 

One of the other posters talked about using Raptor. I havent used it myself but have seen it used a couple of times with the vehicle coloured paint in it. Its an amazingly hard finish. My brother used it on a rally car that he was preparing for forestry stages so its going to get some abuse. 

[leepol83]

Brilliant thank you for taking the time to writer this I’ll look into the raptor stuff, I’m sure I could get a small compressor if needed and just add the colour, I just always worry about it reacting and crazing!!! ?
Lee

[CBJ805T]

Is Epoxy primer only available in 2K or can you get rattle cans? If so where from?

 

Chris 

[pete l]

You can even get 2K rattle cans