Preparing Bay

[Liam1805]

Hello guys im currently preparing my engine bay on my Corsa B, grinding away the rust and treating that with a substance from hammerite, also a few days ago i used hammerite underseal with added waxoil to the crossmember and it still has not dried out which has p*ssed me off a bit, what i want to know is can i use a spray underseal over the top of the underseal on there now, and also when sanding the bay down is it fine to just key the paint up with wire wool

Thanks in advance

[corsadonk]

Hammerite won't go off if it's mixed with anything other than, Hammerite thinners.

[Liam1805]

Hammerite won't go off if it's mixed with anything other than, Hammerite thinners.

stated on the tin leave to dry overnight, i did start removing some of it with white spirit but stressed me right out, can i spray the ''carplan tetroseal'' over the hammerite to save me taking it all off

[mikesmith181]

the tetroseal has strands of i think copper in it, so you cant really spray it, you'll need to thin it down quite alot and slap it on with a brush.

[Liam1805]

the tetroseal has strands of i think copper in it, so you cant really spray it, you'll need to thin it down quite alot and slap it on with a brush.

I have it already it comes in a can form mate, just wondering if it will be fine to spray that over the top of the underseal on there now

[Liam1805]

I am now at the stage for primer, all been sanded down with 120 grit for a good key, rust areas have been treated. I will be spraying those treated areas with etch primer, what colour primer should i use over the etch or will it be fine to just go straight with the actual paint coats, paint colour is star silver btw

[Liam1805]

I am now at the stage for primer, all been sanded down with 120 grit for a good key, rust areas have been treated. I will be spraying those treated areas with etch primer, what colour primer should i use over the etch or will it be fine to just go straight with the actual paint coats, paint colour is star silver btw

Anyone got any info on this for me, what colour primer to be used under silver ?? where best to buy the spray cans from ?? should i primer whole engine bay or just the treated areas and then go straight to paint ??

[beany87]

if your buying your paint from halfords like i did (still not finished it yet) they normally tell you what colour primer to use on the top coat cans i.e i bought vauxhall midnight black and on the top of the can it says for best results use grey primer
i ignored this tho and used primer/filler which is yellow and hasnt made any real difference to the top coat.

[Liam1805]

I heared the halfords paint is quite runny, what experience did you have with them mate, any ideas how much vauxhall sell them at if they do ??

[beany87]

seems ok not had any runs but guess its down to how good you are at spraying ? not sure about vauxhall
in scotland not sure about where you are theres a company called dingbro there paint is really good but you need a trade account to buy from them

[Liam1805]

Yeh suppose so, im pretty handy at spraying. The place i usually get paint from is a bit too expensive for a can of paint, around 3x price of halfords which is not good

[Liam1805]

Should i primer the whole bay or just the areas that have been treated ??

[beany87]

i primered the whole bay prob best to do the whole lot

[Liam1805]

i primered the whole bay prob best to do the whole lot

Well i went and got some stuff today, got myself 2 cans of star silver II and also a can of zinc primer for the treated ares. What im not too sure about is weather i need filler primer or just normal primer

[beany87]

depends on what finish you want if you've keyed the paint if will show through your zinc primer as that's quite thin unless your planing on giving it multiple coats where as if you use the primer/filler its high build (fills any scratches) so would only need 1 or 2 coats so speeds the job up

[Liam1805]

depends on what finish you want if you've keyed the paint if will show through your zinc primer as that's quite thin unless your planing on giving it multiple coats where as if you use the primer/filler its high build (fills any scratches) so would only need 1 or 2 coats so speeds the job up

I am just using the zinc primer for the treated areas as its for bare metal application, will then go over that with a primer but not sure weather to primer the whole bay, i think i will just normal primer it all