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Subject: Paint Hardener

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JR in AR    Posted 02-10-2020 at 12:46:09 [URL] [DELETE]        [Reply] [Email]  
  • Paint Hardener
  • I posted about Painting a Jubilee. I have a couple of new questions for you guys.

    Does the hardener make the finish more durable, or does it just dry faster?

    After you add the hardener, does it cut down on how long your unused paint lasts in a sealed container?

    As always, thanks for your shared knowledge!!!

    Bruce(OR)    Posted 02-12-2020 at 00:27:54 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • isocyanates are great for causing death. Hardens the lungs and you stop breathing.
    In as little as 30 minutes.
    That is why there are SCBA systems. If you have a SCBA then isocyanates are not a problem unless your mask does not fit.

    Bruce(OR)    Posted 02-12-2020 at 00:30:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • IF, IF you do get a mask, READ the part where it says "Safe to use for isocyanates"
    I bet you won't find one unless it is a SCBA system.

    Then again, if you paint real fast, you can enjoy the pretty paint before you kick off 30 minutes later.

    TheOldHokie    Posted 02-12-2020 at 11:10:29 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • I am not one to minimize the risks posed by isocyanates but this is utter nonsense.


    Bruce(OR)    Posted 02-13-2020 at 05:44:03 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • Yeah, I thought so also until I read a story or two.
    Better safe than sorry. . .
    Your mileage may vary.

    TheOldHokie    Posted 02-13-2020 at 07:13:24 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • The people in those stories are the rate exception and should never be exposed to isocyanates under any conditions. They are hyper-allergenic and even the slightest exposure can be fatal. Just like bee stings and food allergies for other people.

    Over dramatizing the hazard only encourages the use of unsafe practices. For the vast majority of people protection commensurate with their exposure level is all that is needed to work safe. Unless you are working a job spraying or handling this stuff on a daily basis you dont need SCBA equipment to be safe. Spray in a well ventilated space using a good fitting half or full face respirator equipped with an organic gas and vapor filter. Wear goggles, a bunny suit or coveralls and rubber gloves to prevent contact with your skin. After spraying dont re-enter the area without PPE until enough time has passed for the vapors to dissipate. I leave the doors and windows open over night and dont re-enter until the next day. These sorts of safegaurds have been time proven to be safe and effective for intermittent use. If they were not you can rest assured these isocyanate products would not be on the shelves of retail stores.


    Bruce(OR)    Posted 02-13-2020 at 12:38:37 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • Hey! Is it true that engineers don't say the glass is either 1/2 full or 1/2 empty?
    They just say it's the wrong size container.

    And now from the razz section. . . .

    "Just like bee stings and food allergies for other people."

    So I suppose the best way to find out is to. . . (hit the link)

    TheOldHokie    Posted 02-13-2020 at 15:27:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • Hey! Is it true that engineers don't say the glass is either 1/2 full or 1/2 empty?
    They just say it's the wrong size container.

    No it is not true. No competent engineer would make such an ill-controlled and absolute assessment without a lot more information. They would want to know things like:

    1. Is that the maximum volume you will ever want to put in that glass?
    2. Are you going to use that glass to take your coffee with you on the morning commute?
    3. If yes does the glass have a lid?
    4. Will it fit in your cup holder?
    5. What is the potential for expensive vehicle damage if the contents spill out on the car interior when you are driving?
    6. If it has hot coffee in it and it spills on your person what are the chances you will crash and kill or injure yourself or someone else?

    Once they have collected that sort of information an assessment of the suitability of the size can be made on a probabilistic basis involving function, risk, and safety. That is also how the public health safety engineers and doctors have assessed the dangers of allowing essentially uncontrolled sale of isocyanate paint hardners. They have determined that with proper labeling and cautions they can be used safely by exercising good judgement and the sorts of PPE that are readily available to the general public.


    Bruce(OR)    Posted 02-13-2020 at 21:12:12 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • # 6 was worth a million bucks once at McDonald's.

    When the implanted defibrillator first came out it was causing injuries from people falling down from the sudden jolt.
    The engineers figured they would get the defibrillator to emit an audible alarm.
    This would give a warning to the patient 30 seconds prior to going off in order to allow the patient enough time to get down on hands and knees to brace for the impact.
    After my wife stopped laughing, she offered the advice to simply lower the kick start voltage.

    TheOldHokie    Posted 02-14-2020 at 07:06:01 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • OMG!!! I will immediately ditch the worthless PPE I have been using and invest in a full scale level III biosuit with SCBA before I play spray gun Russian roulette again.

    And while I am at the safety store I'll be sure and pick up a good quality tin foil hat to prevent those know nothing engineers fron getting inside my head again.

    Thank you for opening my eyes to both the leathality of spraying products containing isocyanates and the dangers of listening to the bumbling scientists, doctors, and engineers posing as workplace safety experts.


    Bruce(OR)    Posted 02-14-2020 at 10:27:04 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • You can afford it. The aluminum foil that is. At least with that aluminum hat, your point might not show up so much.

    Ultradog MN    Posted 02-11-2020 at 06:41:51 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • I always use the hardener when I spray. Always.
    Biggest difference is a hardener really increases the shine on the paint. A lot!
    An enamel paint will never be as shiney as a lacquer with clear coat but enamel with hardener is quick, easy, cheap and long lasting.
    I always use it when spraying.
    It also makes the paint "flash" easier without using so much paint that you get runs.
    Lable on the can of hardener I have says use within 2-4 hours.
    As said, mix in small batches - no more than a quart at a time.
    I always use lacquer thinner instead of enamel reducer. Lacquer thinner dries more quickly, lets you second coat without a wait.
    Caveat: I don't do jewlery!
    I do put on half decent, long lasting finishes on old Ford tractors.
    That's my great tractor pal Kenny in the photos.

    lonestarjeff    Posted 02-10-2020 at 15:57:05 [URL] [DELETE]        [Reply] [Email]  
  • Re: Paint Hardener
  • If you haven't used hardener before, be very careful of your exposure. Some people have a severe reaction to isocyanates.

    TheOldHokie    Posted 02-10-2020 at 13:56:04 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Paint Hardener
  • Does the hardener make the finish more durable, or does it just dry faster?

    This depends on the type of paint and hardner you are using. In general it makes the paint harder. Drying time is controlled by the use of a reducer.

    After you add the hardener, does it cut down on how long your unused paint lasts in a sealed container?

    Do not add hardner to the full can of paint. You mix spray batches in a mixing cup and put the mix in your sprayer. Pot life of the mixed paint and hardner is relatively short - matter of an hour or less depending on the paint and temperature. Discard any unsprayed mix and thoroughly clean the spray gun as soon as you finish spraying.


    BRUCE    Posted 02-11-2020 at 09:43:05 [URL] [DELETE]        [Reply] [Email]  
  • Re: Paint Hardener
  • The main thing to remember about hardener/activator is that it is "LETHAL".. It can affect your lungs that you may not recover from... the paper dust/particle mask are just what they say..They do not stop fumes--which can be deadly with paint additives.. GET A REAL RESPIRATOR/PAINT MASK FROM AN AUTOMOTIVE PAINT STORE ,,IT COULD SAVE YOU A LOT OF PROBLEMS AND WORTH EVERY PENNEY IT COST.. I HOPE YOU WILL AT LEAST CHECK THIS OUT BEFORE USING ANY HARDENER/ADDITIVE..

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