[Mk2] [Generic] bomex bonnet vents. ( border not bomex )

[phipck]

thats what i like to see, "why buy it when you can build it!" good man!

[fearless]

my wife laughs at me but my 5 year old daughter tells all her school friends that her daddy makes things, and that he can fix anything she is really proud of her dad and always says dont worry daddy will fix it,

it didnt cost me a bean to make it as i had all old scraps of metal laying around and kept me busy for a while, ive made all sorts of things in the past car ramps, spring compressors all sorts i love it im tight really but the way i see it saves money to go on other things and as the supermarket says every little helps.

phipck im loving your car very nice i so love black 2's i feel a respray maybe comming on if i master this painting lark hmmmm

[phipck]

thanks chap, nice to get a compliment once in a while......i tend to get ripped by the mr2 jap brigade for having a veilside, which must make my mr2 the "black sheep" of the mr2 family lol

i havent got any kids, but your in the possition that i would love to be in when i do. much like my girfriends dad who was called "daddy hero" by my gf and her sisters when they were younger. id imagine its the best feeling in the world

i had a go at forge work the other day, living in herefordshire its a great place to get access to this kind of thing. have to say it was absolutely bloody good fun, far more satisfying than fabrication and welding in my opinion and limitless creativity. add that to your list of skills with painting and you'll have every tool imaginable!

[fearless]

im not a great lover of veilside kits but on a black car i love it and yours looks like a mint example of one in the pic.

being a dad is great you have a nasty day at work and your 5 year daughter meets you on the drive ripping the door off to see you and it all disappears, she also loves daddys car she loves going out in it and also helps when i work on it and is always in my shed helping not when im welding of course dont want a 5 year old with arc eyes.

wish i could have stayed with the metal working trade must admit i did like it and do miss it , after making a few bits in my time prison beds, cats, exhausts now i wear a suit i so miss the getting dirty part aswell im a hands on man without a doubt.

[redmr89]

id agree . im not a fan of the veilside kit. but on a black car it looks mint. i really like it..

on another note. mr madbiker. ive been following this thread for a while as you know. and im keen to see this on your car.... youve done some good work mate. and i like your self made kit..

can you weld me a forged 400bhp engine from the parts i have in my garage?? lol

[fearless]

id agree . im not a fan of the veilside kit. but on a black car it looks mint. i really like it..

on another note. mr madbiker. ive been following this thread for a while as you know. and im keen to see this on your car.... youve done some good work mate. and i like your self made kit..

can you weld me a forged 400bhp engine from the parts i have in my garage?? lol

i wish i could im a bit handy but not that handy im afraid, your not the only one wanting to see it on the car ive been walking past it in my shed for what seems like years im fed up with looking at it, i love making things always have done i love scrapheap challenge one of my fave programs hopefully not long now fingers crossed.

[craig]

Nice work mate, and an interesting read. Should look good when sprayed/fitted

[fearless]

i sure hope so its taken me long enough still it was buying the bits to paint it that have cost the money and taken time , still i see it more of an investment to be honest, i now have the tools to paint anything i wish if i get bored with something i can change it and any little projects that might arise.

[fearless]

look what came today


si i thought i would make a makeshift spray booth out of my gazebo, went to mix up the high build primer 4-1 ratio put it in the gun through 2 paint strainers fine ones set up the gun and started spraying,
the finish was really rough it was like sandpaper so i put some thinners in it to make it thinner thinking it might be having trouble getting out of the gun no joy their,
checked again gun preassure jewel states a max of 50 psi i was running 40 i have regulator on my gun so i know thats correct so i thought thats ok i will just flatten it with the 400 grit paper and go from there,
sadly the 400 didnt even touch it tried some more aggressive paper still rough,
i just could not get it smooth in the end i rubbed down to metal in places and had lumps and bumps, in the end i rubbed all the primer off and will start again tomorrow dont know if anyone has any ideas why this happened it would be appreciated im bricking it now if i cant get the primer right what hope have i got with the paint,
did have one idea i have cellulose primer on bonnet dont know maybe if its reacted to it hmmmmm

[jimjams]

Spraying at 40 psi? :O No wonder its coming out like harling! You should be spraying at 2 bar, around 29 psi, 40 is far too much, what size fluid tip are you using?

[Steve-O 2007]

you want to be spraying the High Build primer on at Low Low pressure, They spray it on at about 0.8 - 1bar (about 12 - 15psi) where I work and they put it on thick as well. Usually they put 2 - 3 coats on. You want it going on so low that theres hardly any overspray.

Once dry dust over it all with some dark spray paint (eg black) from a spray can. Let that dry and then start flatting it down. The black paint will sit in all the areas that need more attention / more flatting (Eg prep marks). If you see black marks left dont worry it just means keep flatting untill all the black is gone and your just left with a super smooth primed bonnet with zero prep marks You will see what I mean when you do it

[jimjams]

you want to be spraying the High Build primer on at Low Low pressure, They spray it on at about 0.8 - 1bar (about 12 - 15psi) where I work and they put it on thick as well. Usually they put 2 - 3 coats on. You want it going on so low that theres hardly any overspray.

Once dry dust over it all with some dark spray paint (eg black) from a spray can. Let that dry and then start flatting it down. The black paint will sit in all the areas that need more attention / more flatting (Eg prep marks). If you see black marks left dont worry it just means keep flatting untill all the black is gone and your just left with a super smooth primed bonnet with zero prep marks You will see what I mean when you do it

Yeha use a guide coat when flatting, but in all my years of painting cars, ive never heard anyone spraying at as low a pressure as that! It'll just go on dry as hell unless you're giving very slow strokes with you're gun!

[fearless]

Spraying at 40 psi? :O No wonder its coming out like harling! You should be spraying at 2 bar, around 29 psi, 40 is far too much, what size fluid tip are you using?

im using a 1.4 tip i was just going on the spec sheet it says 1.4 tip is fine and has preassure listed as that, oh well maybe another go tomorrow then at 29 psi do i put thinners in the primer or does it stay thick spec sheet says nothing about thinners.

what about the paint what preassure for that then, bloody complecated this spraying bussiness, i knew something was wrong when i started it didnt look wet, oh well learn by my mistakes at least my bonnet is a lot smoother now not so many sanding marks as before must admit the high build does cover them well anyway.

cheers guys

[jimjams]

Spraying at 40 psi? :O No wonder its coming out like harling! You should be spraying at 2 bar, around 29 psi, 40 is far too much, what size fluid tip are you using?

im using a 1.4 tip i was just going on the spec sheet it says 1.4 tip is fine and has preassure listed as that, oh well maybe another go tomorrow then at 29 psi do i put thinners in the primer or does it stay thick spec sheet says nothing about thinners.

what about the paint what preassure for that then, bloody complecated this spraying bussiness, i knew something was wrong when i started it didnt look wet, oh well learn by my mistakes at least my bonnet is a lot smoother now not so many sanding marks as before must admit the high build does cover them well anyway.

cheers guys

1.4 tip is fine, what kind of primer is it? In the highbuild i use, its mixed at 3:1:1 with hardener and sanding activator, i can almost bet your's will be a 2:1 ratio with the primer and thinners, look around the tin and see if you can see any ratio marks, paints the same pressure and increase it a couple of marks on you're regulator for you're lacquer, i dont mean by a bar, but just a few psi. I must admit you're not painting in a booth either which i just realised so decrease you're pressure a little, but if the bonnets layed flat it wont really matter.

[fearless]

its grey high build primer spec sheet just says 4-1 ratio 4 parts primer 1 part activator does not mention thinners aswell, with preasure at 50 psi which is all what i followed as it came out crap i added some thinners to try but didnt help to be honest tomorrow is another day so have another try then with what ive been told.

heres my primer looks like i havent put enough thinners in it to be honest but read spec sheet.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0315977703

[fen666]

MIXING
Mix by volume 4 parts 2K 4:1 HS HIGH BUILD PRIMER: 1 part 2K PRIMER HARDENER.
Up to 30% by volume of 2K FAST thinner may be added as required. The recommended
spray viscosity is 18 sec. DIN 4 @ 200C.
The mixing ratio by weight is 7 parts 2K 4:1 HS HIGH BUILD PRIMER : 1 part 2K
PRIMER HARDENER. Up to 20% by weight of 2K FAST THINNER may be added as
required.
SPRAY PRESSURE 50
60
PSI (34
bar) at gun.
GUN SET UP 1.4 1.7
mav nozzle e.g. SATA MSH, MSB or DEVILBISS JGA FW/86
APPLICATION
1: As a high build primer use minimum amount of thinner and apply 23
coats with 10 mins. flash
off between coats to give 100150
microns dry film thickness.
2: As a conventional primerfiller
add up to 30% thinner and apply 2 coats to give approx. 50
microns dry film thickness.
POT LIFE Approximately 2 hrs. at 200C depending upon the amount of thinner used.

[splashnatz]

don't know if you're already on this US forum, but it's quite informative :

http://www.autobody101.com/forums/

[fearless]

had a better day today lowered gun preassure added a bit of thinners not to much and away i went,
this time i left it i sprayed an old bit of metal i had and rubbed it down with 400 some 7 hours later and its now smooth, i also think i never gave it enough time to dry before sanding and it was still tacky hence why it wouldnt go smooth.

heres bonnet in high build primer ready to flat sand tomorrow and then the dreaded colour which im not looking forward to, in saying that you learn by your mistakes.

and heres my makeshift spray booth oh and diesel my dog he cant resist a picture poser.

oh splashnatz thats a good website thanks.

[Steve-O 2007]

Wow, that looks great What pressure did you use in the end? Give it a black guide coat and it will look even more professional Did you get the washer jet holes done?

but in all my years of painting cars, ive never heard anyone spraying at as low a pressure as that! It'll just go on dry as hell unless you're giving very slow strokes with you're gun!

I didnt mean to paint at that pressure, I meant to apply the High build primer at that pressure.

Maybe its a different type of high build primer they are using to what you use. Its a BMW Bodyshop I work at and they use BMW stuff and Spies Hecker. They have a range of coloured high build primers which is handy

When I used it to do my repaired border bumper they told me to turn the pressure right down (Not so its spitting ) and apply it thick and heavy covering all the prep marks / filler.

This is how they apply it and it allows them to apply it next to other cars with no chance of overspray . If they are using High build on a large area they would take it into a booth and spray it just incase they got overspray on another car but for small areas like doors its fine

[jimjams]

but in all my years of painting cars, ive never heard anyone spraying at as low a pressure as that! It'll just go on dry as hell unless you're giving very slow strokes with you're gun!

I didnt mean to paint at that pressure, I meant to apply the High build primer at that pressure.

Maybe its a different type of high build primer they are using to what you use. Its a BMW Bodyshop I work at and they use BMW stuff and Spies Hecker. They have a range of coloured high build primers which is handy

When I used it to do my repaired border bumper they told me to turn the pressure right down (Not so its spitting ) and apply it thick and heavy covering all the prep marks / filler.

This is how they apply it and it allows them to apply it next to other cars with no chance of overspray . If they are using High build on a large area they would take it into a booth and spray it just incase they got overspray on another car but for small areas like doors its fine

Ah i misunderstood mate! i assumed you meant spraying in the booth, not on the shop floor. Yeah if you're highbuilding on the shop floor by all means use a low pressure! Even if were doing small areas its always a booth job, unless all 3 are full. We use sikkens as opposed too spies hecker, but we have every coloured primer aswell which is handy from the usual grey and washprimer yellow!