John, wow man, thanks for the reply. So let me get this right.....green, sticks harder...blue sticks less.
What I am doing....I am making a two tone scheme. There will be fine line 3M tape for the color line. The paint will be BC/CC, so I want something that won't pull up the paint when I'm done.
welllllll... if you way over simplify things - then yes, sort of
If you're talking about the old standby 'Home Depot' type "Blue" (class 3) house painters tape - then yes, the blue would 'stick' less than the automotive "Green" (class 2)tape
If you are talking about one of the 'High-Temp' type technical automotive 'Blue' (class 1) tapes (like 3M's 4737T or S series)then the answer would be definately be NO!
These 'Blue' colored tapes are some of the best available.
But - the differences are very easy to see
The 4737 series of technical tapes use a Vinyl backing material (as many HP/technical tapes do) vs. the paper (crepe) backing material on the Home Depot type 'Blue' tapes.
Actually, there are several styles of automotive tapes that also have the vinyl backing vs. crepe. Their colors range from Tan(ish) to green(ish) to blue(ish) and even white.
As far as "stick" - there is a lot of differences across tape lines.
Most of the common tapes use a very similar rubber based adhesive system.
The type of backing, the amount of coating and to some extent some slightly different formulas of the adhesive give it it's "stickiness" ...
The type of backing also dictates how resistant it is to light effecting the adhesive over time and causing the tape to be hard to remove - the more the backing restricts the amount of UV energy getting to the adhesive to dry it out (evapoate the needed remaining solvents that keep it plyable) the longer you can leave it on a surface and still remove it easily.
If the adhesive dries out to much the adhesion strength will exceed the backing amterials strength - or - the tape will tear while you try to remove it instead of the adhesive just giving up it's bond to the surface...
All tapes have an initial adhesion rating given in ounces(oz)-of-pull against a given test material - clean steel or SS-steel being a common substrate they are tested on.
Normally you would want a tape in the mid30~upper 40's for best results in an automotive paint application.
I commonly use 3M's #218(green), 226(blue) or #4737 tapes in 18/24/36mm widths. (18 = 1/2"/24= 1"/36 = 1.5")
As stated above - talk to you local paint supplier and get his recommendations and see what he stocks.
You don't go through that much tape for a whole job, so the costs are not very prohibitive.
I second the green stuff.......when I used to do paint & body that was all the shop used. Don't forget there are 2 different kinds of paper also......1 has a wax based back to stop the bleeding of clears.
Yup, there are actually a lot more type, but we only need to worry about a couple for automotive use.
3m" #06736 "ScotchBlock" papers are an excellent choice. They are resin coated to resist the newer Urathane solvents and also will hold up to most 'wet-sanding' activities pretty well - like when sanding for adhesion of striping over the base-coat...
Again, cost isn't a real biggie as you don't use but a roll or so.
And - no, I didn't sleep at a Holiday Inn last night - but, yes, I am an engineer