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Alfa Romeo 145 - 146 Forum > Technical > FAQ
laaf
I'm about to paint the black parts of the bumpers on my pre-facelift 145.gif as they're a little bit scuffed and faded but don't remember what colour the plastic of the bumpers was any more. blush.gif

I think it was dark grey but most people's bumpers look black in the photos. unsure.gif

Does anyone know?
hazeyblue
They should be a dark grey - if left alone they can fade much lighter... I use a 'back to black' bumper wax, which adds a nice lustre and makes 'em look new.

HTH
laaf
Thanks Hazey, Dark grey it is then.

Yours shows it quite clearly. I got a bit confused by this brochure shot but I guess it was a prototype.

I just scrubbed all the Back to Black off my bumpers ready for the paint- they look absolutely terrible now.

[attachment=3158:littlebrochureshot.jpg]
hazeyblue
My signature pic shows a bumper in need of waxing... and having a black car makes it look lighter too.

The photo attached was shot just after it was done, looks much darker.

[attachment=3159:attachment]

I'm sure 145 in the publicity photo will have had the same bumper as ours, just with lots of dark wax and a nice moody location.
Dodger
I agree. Don't paint them it will just crack and look sh1t. Try some black in flash or the like and see how they look then. You might need to give them a couple of coats, but some say they hide the scuffing.
paulcanning69
why dont you colour code them to the car
laaf
QUOTE(paulcanning69 @ May 22 2006, 08:43 AM)
why dont you colour code them to the car
*


I have a 130 Rosso red car. Getting a colour match might be a struggle.
I am also trying to keep it as original as I can and quite like the original look.

Is the cracking problem common to all bumper paints? The stuff I have says it can be sprayed directly onto the plastic.

Has anyone tried Vinylkote yet on bumpers? I used it on a vinyl sunroof and it worked extremely well.

I have been over it with all manner of scouring powders and detergents to get every last trace of wax or silicone off.
jamesgrrr
My car's bumpers have at some point been colour coded to the car. the front bumper is fine (no signs of cracking etc) but everytime i wash the back bumper under the numberplate more flakes come off blink.gif i assume that is because all the water settles there and helps dissolve the paint?

i'd reccomend colour coding though, it just makes it look like a facelift and for the price it lasts quite well - i suppose it depends on the colour of car and how well black bumpers go in the first place.
GialloEvo94
QUOTE(laaf @ May 22 2006, 09:54 AM)
Is the cracking problem common to all bumper paints?  The stuff I have says it can be sprayed directly onto the plastic. 

Has anyone tried Vinylkote yet on bumpers?  I used it on a vinyl sunroof and it worked extremely well.
*

Try Krylon Fusion which is specifically designed to be sprayed onto plastic without cracking or flaking. It isn't available off the shelf in the UK (I think due to the type of hazardous solvent used in the paint) but you can get it imported from the US through Caswell Europe. The page with the Krylon Fusion paint is HERE. They do black in both gloss and satin. Quite expensive at 10 a can with import charges (not sure if this also includes delivery) but if it does the job properly then it will be worth the money smile.gif
laaf
QUOTE(GialloEvo94 @ May 22 2006, 09:46 AM)
QUOTE(laaf @ May 22 2006, 09:54 AM)
Is the cracking problem common to all bumper paints?  The stuff I have says it can be sprayed directly onto the plastic. 

Has anyone tried Vinylkote yet on bumpers?  I used it on a vinyl sunroof and it worked extremely well.
*

Try Krylon Fusion which is specifically designed to be sprayed onto plastic without cracking or flaking. It isn't available off the shelf in the UK (I think due to the type of hazardous solvent used in the paint) but you can get it imported from the US through Caswell Europe. The page with the Krylon Fusion paint is HERE. They do black in both gloss and satin. Quite expensive at 10 a can with import charges (not sure if this also includes delivery) but if it does the job properly then it will be worth the money smile.gif
*



I might try that as the paint I bought is too light and has already scratched off the lid of the can which isn't a good sign.

Have you used this or seen the result?

I like the idea of hazardous solvents bonding it to the plastic properly.
GialloEvo94
QUOTE(laaf @ May 22 2006, 11:38 AM)
I might try that as the paint I bought is too light and has already scratched off the lid of the can which isn't a good sign.

Have you used this or seen the result?

I like the idea of hazardous solvents bonding it to the plastic properly.
*

Not personally used it myself, just heard other people recommend it elsewhere. There's some more information HERE and a review HERE.
Dogbreath
i got some stuff from my neighbour, the back to black stuff that he uses at the garage to sell second hand cars, it works very well although does benefit from a weekly dose to keep eveything in pretty condition.

It's crazy sometimes, he brings his homework home with him, on a sunny evening he waxes, sprays wipers, polishes, hoovers etc and can turn a car around from looking a bit ropey to A1 condition, guess thats how they make their money, bit of spit and polish.
laaf
QUOTE(Dogbreath @ May 22 2006, 11:16 AM)
i got some stuff from my neighbour, the back to black stuff that he uses at the garage to sell second hand cars, it works very well although does benefit from a weekly dose to keep eveything in pretty condition.

It's crazy sometimes, he brings his homework home with him, on a sunny evening he waxes, sprays wipers, polishes, hoovers etc and can turn a car around from looking a bit ropey to A1 condition, guess thats how they make their money, bit of spit and polish.
*


I'm a big fan of Back to Black but the colour of my bumper is patchy and almost white where I have tried to even up some scratches it has.

It will need some colour. I just tried a light coat of the Hycote dark grey bumper paint I bought on a plastic wheelie bin and it seems to have bonded really well. Just a shame it's the wrong colour.
laaf
Here's the sh*gged bumper and I've got a can of black bumper paint (dark grey is too light and they're almost black when back to blacked properly).
I'll give it a quick run over with acetone, then 2 light coats and see what happens. unsure.gif

[attachment=3204:knackeredbumpersml.jpg]
laaf
Done. smile.gif

[attachment=3215:rear_wip.jpg][attachment=3216:rear_done.jpg]
[attachment=3217:front_bumper.jpg]
GialloEvo94
Fantastic job...looks like brand new biggrin.gif

Out of interest, what did you use in the end? Is it some stuff which adheres properly to plastic and is guaranteed not start to cracking or peeling off?
laaf
QUOTE(GialloEvo94 @ May 27 2006, 09:46 PM)
Fantastic job...looks like brand new biggrin.gif

Out of interest, what did you use in the end? Is it some stuff which adheres properly to plastic and is guaranteed not start to cracking or peeling off?
*


2 tins of Halfrauds black plastic bumper paint (about 10 for 2). No guarantees. sad.gif
It sprays differently to paint where you let it flow. With this stuff you dust over in about 3 or 4 very light coats. Too thick and it goes white.
It's meant to be black but this photo shows that it appears dark grey when sprayed onto the textured bumper even though the smooth lid is black.

I am hoping that the cracking would be down to coats that are too thick and the peeling might be a result of not getting all the old Back to Black off. unsure.gif

[attachment=3222:Bumper_colour.jpg]
Jim145
Great job mate! Looks fantastic, fingers crossed it stays that way! smile.gif
F355
That looks very good cool.gif I might have to do the same myself over summer because I have a few scuffs that need sorting.
Junior145
Hi laaf, the bumpers do look awesome, just wondering how theyve lasted ? any sign of cracking/peeling/fading etc. ?

cheers, tom.
laaf
QUOTE(Junior145 @ Oct 5 2006, 05:36 PM) *
Hi laaf, the bumpers do look awesome, just wondering how theyve lasted ? any sign of cracking/peeling/fading etc. ?

cheers, tom.

No problems yet except I scuffed one a bit the other day.
I forgot to mention what was used to prepare them.
I think it was scouring cream, then white spirit to get them looking like they do in the before photos.
langers
For a top up on the bumpers, i rub mine down with the same stuff that i use for the tyres. Turtle Wax stuff, OR the meguires equivilant.

[attachment=9375:DSCF4417.JPG]
Davztyr
ok...dont laugh.. on other cars for fading plastics i swear by morrisons own brew liquid scuff coat polish.after 3 or 4 applications it looks really good and lasts for months-it doesnt go streaky with rain or even when you wash your car.
Tifosi1976
best i've used for a long lasting finish (one treatment lasted a whole summer)


Peanut Butter.


I kid you not.


Gotta be crunchy, not smooth. smear it on liberally, leave for a few hrs

wipe off.


The natural oils in the peanuts soak in and last for AGES leaving a lovely shiny black bumper. AND as a bonus with what you scrape off ya could, in theory, make some sarnies.
addamski1980
QUOTE(Tifosi1976 @ 26th January 2011 21:31) *
The natural oils in the peanuts soak in and last for AGES leaving a lovely shiny black bumper. AND as a bonus with what you scrape off ya could, in theory, make some sarnies.


roflmao.gif roflmao.gif roflmao.gif
NaanBread
QUOTE(Tifosi1976 @ 26th January 2011 21:31) *
best i've used for a long lasting finish (one treatment lasted a whole summer)
Peanut Butter.
I kid you not.
Gotta be crunchy, not smooth. smear it on liberally, leave for a few hrs

wipe off.
The natural oils in the peanuts soak in and last for AGES leaving a lovely shiny black bumper. AND as a bonus with what you scrape off ya could, in theory, make some sarnies.


Ive heard of that before, but I cannot use such a way due to the fact Peanuts kill me laugh.gif

Auto Glym bumper polish is green and awesome!
purple
this looks even easier and no mess

http://www.youtube.com/watch?v=Q-dtbBzky-s...C8&index=37

HTH
kirk46
i was gonna say used a heat gun then clicked your link lol
Davztyr
my sphincter was goin like a rabbits nose watching that.. the only problem doing it that way is that heat guns tend to strip paint tongue.gif
fine if you wanna take off trims,but wouldnt recomend for a half body coded bumper smile.gif
chardy146Ti
Tried the peanut butter yesterday (smooth) and it works a treat. thumbup.gif Acts as a water repellent too so the rain just runs off so no spotting on drying.
All I have to do now is get the damn lacquer off the paint so I can polish it up ! laughbounce2.gif
pixxypip
heat gun doesnt work on all bumber plastics!! does a phase 2 bumper fit a ph1? mines tired and gray back to black just seems to attract dust i remember every time i used to hide the car seat in the boot ;0 i used to get covered in greesey soot of the bumper..... soz bout old thread but i spotted this and i want it!!!!

http://cgi.ebay.co.uk/Alfa-Romeo-145-Face-...=item4158d9c5a3
GTV sean
Hello gents ! My bumpers arent too faded but I'd like to give them some rejuvenation.. I'm in South africa so I'm not really sure what kinds of bumper treatments we get here but I've been using Wynns Back to Black? It gives a nice shine but doesnt last long in our hot sun rant.gif

Any suggestions?
kirk46
QUOTE(GTV sean @ 10th April 2013 07:32) *
Hello gents ! My bumpers arent too faded but I'd like to give them some rejuvenation.. I'm in South africa so I'm not really sure what kinds of bumper treatments we get here but I've been using Wynns Back to Black? It gives a nice shine but doesnt last long in our hot sun rant.gif

Any suggestions?



use a heat gun

and dont be afraid of heating up the paint to much...

i use a heat gun on paint at work to remove contam and bird s**t biggrin.gif
GTV sean
Haha gents I tried the heat gun method and it didn't seem to make much difference? I must admit the my bumper isn't too bad and having a black car just makes it worse.. biggrin.gif

Maybe it's time to use some meguiars!
black 146
QUOTE(GTV sean @ 28th May 2013 21:27) *
Haha gents I tried the heat gun method and it didn't seem to make much difference? I must admit the my bumper isn't too bad and having a black car just makes it worse.. biggrin.gif

Maybe it's time to use some meguiars!




did you not give it a go what i said to'do onyour bumpers?
GTV sean
Not yet mate but thankfully as it is my day off, best I try it!
black 146
QUOTE(GTV sean @ 29th May 2013 05:40) *
Not yet mate but thankfully as it is my day off, best I try it!





if your not happy doing it! just try a small bit some were it don't show so much
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