Hello everyone I was wondering if anyone can see the difference in shades of grey primer between two brands. Also, I was wondering if this would have a difference in the final top coat which is going to be red. I used one brand over another because of some difficult pinholes in the filler that I was trying to get out. They are both dtm 2k urethane primers just one has more build to it. I am attaching some pics, I would greatly appreciate some help.

zupta82 wrote:Hello everyone I was wondering if anyone can see the difference in shades of grey primer between two brands.

Definitely......I have a gallon of SpeedoKote DTM Epoxy and a gallon of the brand we don't speak of here (Espy). The latter is darker. To me, both sand pretty much the same and I really don't have a preference but, there is a difference in shade. Just my personal experiences--the Pro's may say different.

There are big differences between brands.
And they can effect the final color.
Be sure to put a few more coats of color over it
to achieve final hiding to make it the same

JCCLARK wrote:There are big differences between brands.
And they can effect the final color.
Be sure to put a few more coats of color over it
to achieve final hiding to make it the same

Right or wrong, I always do 3 coats and then really look it over. Having said that, my supplier usually sells PPG Omni in the colors I use. I know it is a bargain brand (and takes more to cover) but I really like to support local and he takes a lot of time to scan and match colors for us. The mail order route of a better brand might save me a few $$ but so far I feel I am turning out acceptable work using what I get from him. Just my thoughts--I'm an armature at best--don't go by me, LOL.

if your spraying a color like red that's a poor hiding color you could spray a sealer down 1st going wet on wet or use a ground coat under the red. for most reds something in the light gray color family would work fine.

The Picture of were your finger is shown.
When I zoom in on it and look closely at the paint It looks to me like you have not sanded it enough regardless of any color miss match from different brands.

I do not what your plans are for Base coat but I would wet sand all of that primer with 400 for solids and 600 for Metal flake.

After sanding you should be able to spray the Primer down with Wax and grease remover and see a nice shinny flat surface, I do this to find imperfections in my body work before Base coat.

JCCLARK wrote:Be sure to put a few more coats of color over it
to achieve final hiding to make it the same

This is not the answer - it just builds paint thickness which wastes money and increases the likelihood of failure.

dkbautosports wrote:if your spraying a color like red that's a poor hiding color you could spray a sealer down 1st going wet on wet or use a ground coat under the red. for most reds something in the light gray color family would work fine.

This is a better solution but while it may work for a full respray, the generality of the ground coat colour probably won't provide an accurate match to existing panels or give the exact colour if that is important.

Reds are notorious for poor hiding and that means that the substrate colour can have a huge impact on the final result.

All the bigger paint companies produce primers/sealers/undercoats in a range of greys. Typically these are numbered from 1 to 7 with 1 being off-white and 7 being very dark grey. Taking a reading of a colour with a spectrophotometer will generally also give you the correct shade that your substrate needs to be. This information is also available in the formulation of the paint colour that you choose.

Also important is the quality of the paint that you use. A top of the range colour may only need 1.5 coats to achieve full coverage. Cheaper paints can need 3, or more, coats. Even if the better paint is double (which it usually isn't) the price of the cheaper one, buying on price is a false economy.

Guys You really need to look at his pics zoom in on them. That Primer has not been sanded.
After he sands out all the Dry spray and runs its gonna be all one color. a sealer coat will make every thing nice for base if their is any color miss match BUT I am sure he will be fine IF he sands it out nice.