How to properly apply vinyl stickers to a car

J.G.
Update by J.G. Pasterjak to the BMW 435i project car
Jul 6, 2024 | BMW, BMW 435i, Vinyl Stickers

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Photography by J.G. Pasterjak

Our BMW 435i is a race car, right? Therefore it needs some stickers.

We thought this would be a nice chance to review some best practices for applying vinyl, since it’s something we’ll all have to do at some point.

Start with a clean surface. And by clean we don’t just mean free of dirt but also free of chemical contaminants that …

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Comments
mikerunt
mikerunt GRM+ Memberand New Reader
7/6/24 10:27 a.m.

How much horsepower does this mod add?

Floating Doc (Forum Supporter)
Floating Doc (Forum Supporter) GRM+ Memberand UltimaDork
7/6/24 12:22 p.m.

Good article. I had to figure all of this out on my own. Nice to see that I (mostly) had it right. 
 

The 91% isopropyl alcohol is my go to degreaser and solvent for a lot of things. When removing stickers, it's really useful for cleaning the melted adhesive/citrus solvent (goo gone) slurry. 

flyin_viata
flyin_viata GRM+ Memberand New Reader
7/6/24 4:15 p.m.
mikerunt said:

How much horsepower does this mod add?

Good for at least three tenths.

docwyte
docwyte UltimaDork
7/7/24 10:03 a.m.

What are the chances of the stickers "ghosting" the paint underneath if they're left on for awhile?  Like months/years?

theruleslawyer
theruleslawyer Reader
7/7/24 10:26 p.m.

Even with pressure decals ive had a lot more luck getting them flat with soap and water. This is especially true with decals with a lot of surface area. part of the issue is decals are flat and your car isn't. 

Also temperature matters. Warming them up with a heat gun makes them a lot more pliable. this makes matching curves a lot easier, especially wrapping edges. 

Floating Doc (Forum Supporter)
Floating Doc (Forum Supporter) GRM+ Memberand UltimaDork
7/8/24 12:22 a.m.
docwyte said:

What are the chances of the stickers "ghosting" the paint underneath if they're left on for awhile?  Like months/years?

It happens. There's multiple factors in the degree of fading of the surrounding paint. 
 

I got lucky, removed some letters after at least five years. The paint didn't fade much as the car was covered when not in use.

JG Pasterjak
JG Pasterjak Production/Art Director
7/8/24 5:25 p.m.
docwyte said:

What are the chances of the stickers "ghosting" the paint underneath if they're left on for awhile?  Like months/years?

About 100% given enough time and not enough UV protection on the uncovered parts. Also, different types of vinyl are going to allow different levels of UV to pass through. Bottom line here is it's probbaly best to peel every season and make sure the whole surface is properly cleaned if it's a car whose paint you care about long term.

A few weeks ago I had to put a bunch of stickers on my race car after I got it through tech.  A guy next to me had a spray bottle of vinyl application fluid and loaned it to me.  After cleaning the paint, you put down a spray or two of the application fluid then put the sticker onto it.  Man, I'm never going back to dry!  It made it super easy to position the sticker and squeegee the air bubbles out, even with very large stickers.  Game changer.

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