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32 thoughts on “1K VS 2K Primer – Which is Better? DIY Auto Body and Paint Q&A

  1. Hi. Donnie, thank you so much for answer me this important question about what primer is better.
    Donnie I feel so glad and excited that you answer my important question and that you take part of your time and make this video for this important paint process step, I do appreciate it a lot.

    After your well explanation I clearly understand what primer is better and I'm very glad to learn about this thanks to you Donnie.
    I told a lot of my friends and family about your great youtube channel.
    And for sure next time I will have other better question about paint for cars and I will share it with you.
    Thanks Donnie I appreciate all your effort.

  2. Hey Donnie can you do a video on what are all the step and in order to do everything in? Priming, painting, filling, prepping, sanding ect. and in the correct order. One list for the most extreme rust, dent, and effect repairs and a second list for a car that has all straight panels and factory original paint but someone is just looking to respray to a new color. This had me confused as a beginner ears ago.Thanks -Andy

  3. Hi, I was wondering what your thoughts were on the different 2k primers, which do you feel is better? polyester, urethane or epoxy? I know polyester is cheaper than the other two, but is it as good?

  4. Thanks for clarifying the 1K/2K difference. I haven't used 2K Primers yet, but it might happen soon. All the best to you guys!

  5. hey donnie. whats a good brand 2k primer to use im trying to find something that good to use and not the cheap stuff that probably no good

  6. Hello Donnie, I have a quick question for you, I am making a street version of a Baja Bug and am using some used fiberglass pieces I picked up for a decent price. However in removing some work that was done previously as well as some stress cracks, I went through the gel coat down to the glass and resin. What is the best way to get this to a printable surface, and do I use the same primer on the metal, down to bare metal in places…no I haven't planed on taking the whole car to bare metal. I know etch primer for the bare metal, but is this good for the whole car? Thank you for the help. Eric P.

  7. Not once did you mention 2K is deadly if breathed in over long periods of time or in high amounts. It contains isocyanates which from what i understand is a close chemical to cyanide!

    2K paints should only be used with a full body suit and a air fed mask and I think you should edit any of your videos which dont mention this, it may save someones life

  8. Hi Donnie just wondering if you can recommend a good spray gun for primer and or epoxy. Home garage 30 gal compressor. Husky 30 Gal. compressor features a high performance pump and motor that delivers 175 max psi along with 5.1 SCFM at 90 psi. The Husky 30 Gal.

  9. For anyone doing garage ghetto body work. Be mindful of 2k products and your safety, my neighbour passed out in his garage and now has respiratory issues due to minimal venting and safety gear used. It has a pretty bad hazardous waste eating for both inhalation and ingestion. Good luck

  10. if you really like this kind of hobby etc… you'll get the hang of the products etc,,, and know which ones to use too, but you only will get good at it by doin lots pf projects etc…… if your not goin to this hobby to often, its goin to be harder for this information to sink in. good video.

  11. Not sure is the red hardner had anything to do with the bleed through. It will happen with the red or the blue when you add to much. I was told its the peroxide in the hardener.

  12. Hello I got 1k primer and its 1:1 ratio with acetone…my question is I go to spray it.. and then when I sand it I get to glaze right away is there something I'm doing wrong with the primer

  13. 1k primer is ok if the car is evenly pre primed. And the 1k is only used to eliminate sand scratches. If you have even small spots with glaze or putty the 1k will allow it to bleed through and will show even in black paint jobs.

  14. Sorry, this video did not give me an answer. 2k is better, but more expencive, but I don't know your circumstances, maybe 1k is better for you…. you are fn genius mate.

  15. DO NOT USE 2K PRIMERS !
    2K primers contain isocyanates that with one exposure can permanently disable you or kill you. You cannot rely on a cartridge mask to save you. You have to have an air supply system whose pump is at an external location away from any fumes to provide any type of safety.
    ALSO: YOU CANNOT DRY SAND THE 2K PRIMER AFTER PRIMER DRIES BECAUSE THE SANDING DUST CONTAINS ACTIVE ISOCYNATES AND WILL RUIN YOUR LUNGS. ALSO: FROM MY OWN PERSONAL EXPERIENCE, EVEN WITH USING AN AIR SUPPLY, THE SANDING DUST GOT ON MY SKIN AND CAUSED A TERRIBLE ALLERGIC REACTION. ENDED UP AT THE HOSPITAL REQUIRED PREDNAZONE SHOTS.
    ONLY WET SAND 2K PRIMER WHEN IT DRIES AND USE AN AIR SUPPLY MASK.
    PLEASE SEE THE FOLLOWING MSDS FOR 2K PRIMER.
    https://multimedia.3m.com/mws/mediawebserver?mwsId=SSSSSuUn...

    THANK YOU

  16. I had no problem with using the 2K primer but the sealer for some reason I just can not get it to lay out.  I am using a Finish Line gun with a 1.3 tip and was told that would be the correct tip for the sealer.  If I get a good wet coat I have to much product and not a good smooth coat.  I am not sure if I would be better off with using the K1 sealer.

  17. Great information I dig it how u break it down. I have a question I have a 48 chevy cab in surface rust I did blast it a couple years ago it stays inside the garage what would be the steps to take to were it's ready to paint thanks for any advice

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