Does Primer Sealer Have To Be Sprayed Before Base Coat?

Does Primer Sealer Have To Be Sprayed Before Base Coat?


– Hey, this is Donnie
Smith, and I got a question on my YouTube channel and I
wanna make this quick video to answer it. It’s a good question. I think I’d do a much better
job trying to explain this rather than to type a response. It comes from 49S13. Would there be a reason
to use primer sealer after applying and
sanding primer surfacer? I have some Valspar 2K primer
that is both a surfacer and a sealer depending on how much reducer is added to the mix. To answer that question, you
do not have to use sealer. You can spray your base coat,
with most paint systems, base coat can go on top of 2K, you know, two part primer surfacer once it’s sanded. But one of the main reasons
you want to use sealer is really for hiding. You want the right color
underneath that paint, underneath the base coat. For example, if you’re
painting a black car and you’re primer’s light
gray, that gray spot is gonna show through that base coat. So you may wanna come
with a darker sealer, whatever’s recommended by the paint, to help hide that primer. Now, there are some
primer surfacers out there that are tintable and once
sanded, they are close to the color of the car. I don’t know about this specific primer, if it’s like that or not. Now what’ll happen if you
don’t use primer sealer is you’re gonna end up using
more base coat to cover that. And probably your sealer
is gonna be cheaper than your base coat, so
really you’re gonna use less base coat by using primer sealer. So it’s for the hiding. Now, also it does provide some adhesion and it helps chip resistance
and things like that. But to answer your question,
no, you don’t have to seal. Let’s say you’ve got all the base coat and the primer surfacer
and you’re ready to paint. You don’t have to have the sealer. You can put a couple
more coats of base coat, put a couple coats down
and make sure it’s hiding. What I mean by hiding is making sure that that primer spot is covered. What you’ll see whenever
you pull it out in the sun, it may be hard to see
while you’re spraying it, but you pull it out in the
sun and where that primer is it’s gonna look like a stain. And whenever you’re
looking at it in the sun you can kind of see where
that primer spot was. And that’s what you’re trying to avoid. If you’re not gonna use primer sealer, I recommend putting a couple
extra coats of base coat to make sure that doesn’t happen. Anyway, that was a good question. I thought I would do this video response to help answer that. That’d be pretty hard to do by typing. So hope that helps you, thanks
for watching these videos, and we’ll see you in the next one.

31 Replies to “Does Primer Sealer Have To Be Sprayed Before Base Coat?”

  1. Always learning on YouTube 🙂 . I'm in the process of restoring a car at home and and it is a long tern project I'm after information on what would be the best way to preserve raw steel , I am under the opinion that primer hardens after time and paint could flake off and also that primer absorbs moisture

  2. Isn't there primer surfacers that are darker? so if your paint is gonna be black,is it possible for a light grey to show through black tho?

  3. Sealer helps prevent paint cross contamination. If you sand clear coat and bust through to the base, spraying the new base on the old can cause a solvent reaction and lifting that you will see later on when you apply the clear. I just had that happen yesterday. I sprayed some sealer to prevent the new and old base from reacting to each other.

  4. HI I HAVE A BLACK CAR BUT IT DID HAVE DEEP SCRATCHES
    I WAS TOLD TO FILL THE SCRATCHES WITH PAINT WHICH I DID AND FLATTED IT BACK TO A PERFECT FLAT WITH NO SHINY DOTS ETC
    I SPRAYED THE CAR AND IT LOOKED NICE
    I COULDNT GET THE EXACT SPRAY BLACK AGAIN FOE A FINAL COAT
    AND SO BEING THE SAME MAKE AND COLOUR I "PRESSUMED "IT WOULD BE OK
     BUT THE SCRATCHES CAME BACK REAL BAD THE NEW PAINT REACTED WITH THE PAINT IN THE SCRATCHES AND BADLY,,,,,, HELP

  5. ok I have a 2005 civic that had a few rust spots and really bad blur paint and so me and my dad sanded the bad spots and added filler and sealer to it to get rid of the rust anyways I decided to prime the whole car because I thought it would look better them to have bad faded blue paint ..now that I have the whole car primer do I have to put clear coat ?? what happens if i dont ?

  6. Hello Sr. and Thank you for your time and videos. Do yo have any videos about urethane single stage jobs and how to get the best of it? mixing time, sealers or primers needed, do and don't?

  7. im painting a gloss black car matte black but i have a aftermarket hood that is red do i need to prime the hood or can i just paint it black?

  8. This video is very interesting and it provide important information for people that are confused about using primer sealer. See the whole video pay attention to the Master and you will learn a lot just in a few minutes. Thank you so much Mr. Donnie for this great video we appreciate a lot your effort time for us.

  9. Hi, Donnie I need an advise from you about the primer sealer: My important question are: Do I have to use primer sealer on this white door?, I will paint the white Door the same color of my car 92U=POLY SILVER-METALLIC-DAEWOO NUBIRA (J100), 1999 After I remove the white color do I have to primer the whole door? PLEASE SEE THE PICTURE WHAT I WOULD LIKE TO DO EXACTLY AT THE LINK BELOW: https://s5.postimg.org/iaf0td3fr/REPLACING_DOOR.jpg I will appreciate your advise, thanks.

  10. What color primer do I need for a red pant [Base coat] Its dodge "Flame Red" also I'm  only putting primer on one fender and I want to prep the rest of the truck so I can paint and put clear on it. what would you recommend for a sanding grit if I am just painting over the same color. thanks

  11. Hey Love your videos. Just a quick question. Im painting my bonnet black color and was wondering after i have applied primer can i put another brand base coat that is black and that is a similar product but different brand to save on my original paint color and then continue on top of that with my original base coat black color instead of spraying 3 4 coats with my expensive base coat? Thanks.

  12. Thats the prob I'm having is see the repairs through the basecoat. Bare metal I used etch primer but on the repairs later. I didn't fill over etch primer. Should I keep adding base or should I 2k over the base and start again?

  13. Great tips. Lets say you are completely repainting a fender. On this fender you have areas of spot primer as well as areas of good shape base/clear that has been scuffed down and feathered into the spot primer areas. When spraying the new base coat will you paint the spot primed areas first to get color over the primer prior to coating the whole panel? In other words, apply 2-3 coats of base over primer spots then 2-3 coats over the entire panel?

  14. Donnie, great video and very informative. Just a quick question, the truck I am doing has various spot primers all over it. I feathered them all out smooth and also washed the entire truck down with 600 grit wet. The areas where I don't have spot primer are sanded clear coat. There are various small burn throughs through the existing clear that I want to shoot my new base coat over. Is it ok to simply dust these burn throughs very lightly with my new base coat until they are covered and flashed off then paint the entire panel? I know people get worried about the reducer in the new base coat reacting with the edges of the existing base coat but my thoughts are if you lightly dust them and get coverage and you are 100% certain it is flashed correctly you will not get any problems down the line right? In other words, if you can get the base coat down without any reactions the clear coat won't cause any problems down the road right? Thanks!

  15. I'm no professional, but I do my best. anyway when I was 18 years old I repaired a front fender, on a dark blue car. I used gray primer, my dad looked at it and said, better use a darker primer, I asked why. he said go ahead and spray it then walked away. 5 minutes later he came back and said now you know why… paint was light blue and didn't match the original dark blue.

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