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Home» News» 3D Printing Industry News»Resin Safety – A potentially hazardous hobby

Resin Safety – A potentially hazardous hobby

Andrew Gott 16 Nov 2019 3D Printing Industry News, 3D Printing Tutorials, Education, News, Resin Tutorials 5 Comments

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Table of Contents

  • The Accident- What happened 
  • The Treatment
  • Why did I share this resin safety article
  • What SHOULD have been done in this situation?

A few weeks ago, I posted a rather gruesome picture on Facebook. It was a picture of my leg, with second-degree chemical burns. Exposure to the resin that I had spilt on myself when I was moving an SLA 3D printer into my new facility. Had caused these nasty, painful burns, and mistakenly continued to work for a while rather than cleaning up my exposed skin.

I posted the photos as a resin safety reminder, but it amazed me at the response to the post. While most people took the post as what I intended it to be- a WARNING about resin safety a genuine threat that many haven’t thought about. Others accused me of fear-mongering, exaggerating, and outright lying. The stories, photos and the danger are real.

My right leg at the burn centre

The Accident- What happened 

First, let me clarify that this isn’t a ‘normal’ injury. There were a set of circumstances and choices that turned what should have been a non-event into a painful wound for me. Had I done what I SHOULD have done, and removed the spilt resin right away, I’d have likely had only some red, irritated skin.

I should have removed the resin vats from all the printers before moving them. And, for the most part, I did. I overlooked this one printer. And it sloshed out of the tank and dripped out of the front of the printer. Some were spilt on my bare arms, and on to my shorts and shirt as well. I was worried that the resin would get down inside the printer and cause problems. So- I cleaned it first. It’s an expensive machine, after all. Besides, I only got a LITTLE resin on me- and I’ve had no actual problems with it. I’ll be fine. Right?

I continued to work that day, after changing to clean clothes. Other than some minor irritation, there was no problem at all. I then worked most of the next day, but then the burning started. I could see the blisters form and enlarge, then I went to the Emergency Room and got immediately sent to a burn centre. 2nd degree burns on about 10% of my body- Legs, Arms, and stomach.

For those who have chosen not to ‘believe’ my story, here is an excerpt from the hospital report from my visit. Be careful with resin # resin safety.


The Treatment

Because of the concerns of developing scar tissue, they needed to scrape the dead skin and blisters off. Because of the extent of the damage, I had to be anaesthetised for the procedure. They scoured the tissue, then applied Cadaver’s skin to it, and then bandaged it up.

The bandages had to stay on, and dry- which meant no showers even though we had a record-breaking heatwave here. The pain wasn’t too bad as long as I didn’t try to move much. Luckily, I had some pretty good pills to help with that. It was a little over two weeks before the bandages could come off. I was fortunate. There was minimal scarring.

But, there is a HUGE financial cost to this whole ordeal as well. I am fortunate to have pretty good insurance, but I’ll still be $3-4k out of pocket. The bills have gone over $30,000.00 already- and not all of them are in yet. The first trip to the burn centre alone was over $25,000.00.

resin safety
The injury at one week

Why did I share this resin safety article

Too many people are too casual when it comes to handling the chemicals involved in SLA printing. I see it all the time in forums- Even in the responses to my post- People who don’t bother for various reasons. I’ve seen people who say if it were hazardous, there would be more warnings. There are even those who brag about how much resin they’ve been exposed to, with no apparent ill effects. One person also felt compelled to make a video to “Debunk” my claims, by doing an incredibly stupid experiment where he poured resin on to his skin to see what it would do.

Throughout this incident, I have fully admitted that I made a dumb mistake. I could EASILY have just done what most people would do in this situation and keep it to myself. But, I feel like people need to take this stuff more seriously. And, the only way they are going to do that is if they see the consequences.

What SHOULD have been done in this situation?

Well- I should have put my health and safety first. I should have put the printer down, and cleaned myself up properly, THEN worried about the printer. By the time this is done, I could have bought a LOT of new printers with just my copays… And the total bills are likely to approach the amount I spent on my house!

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There is no reason to fear the resins- But as with any chemical you work with, you need to have a respect for it. Know how it can harm you and how to protect yourself. And, if you are exposed, know what to do to clean it up. I like to remind those that brag about being able to take the exposure without problems that I, too was once like that. I had never had an adverse reaction to it before this incident. That’s probably what made this incident escalate as it did. I was too complacent.

I hope that seeing what can happen leads others to make better choices in how they handle these chemicals. I’ve prepared a video about what happened, which can be seen. Besides, there are links in the description to more photos.

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3d printer accident burn chemical burn SLA 2019-11-16
Tags 3d printer accident burn chemical burn SLA
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Authors

Posted by : Andrew Gott
Previous Article :

Brozzl All Metal Hotends – Reviewed and Tested!

Next Article :

Artillery Genius 3D Printer Review – Idiot or Savant?

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5 Comments

  1. Bernard MacGregor
    May 31, 20201:31 pm -

    Michael
    Thank you for posting this. It is very important. Especially the part where you explain the cost in medical expenses to the cost of protective equipment and the time and other consequences of what happened to you in comparison to what it might have taken to prevent it.

    I think over time we forget how dangerous resin can be. The longer we are exposed to it the greater the risk of severe reaction like yours.
    Spillage and accidents are part of the process.
    You learn how to decrease spillage over time but as you get more and more comfortable with resin printers you realize things can happen.
    I See posts where a lot of people leave resin in their vats for long periods of time. I never do this primarily because my printer is in an area where animals and other people can go. They usually don’t but the area is not locked.
    When I finish my prints I always clean out my vat, pour all the resin back into its container and clean all my tools completely and put them away. (All my tools are short and small and get dropped into a glass jar with resin cleaner as soon as I am finished with them).
    I put my paper towels, glass wipes, supports, and other contaminated waste in an old empy kitty litter container that has a cover that seals nicely. I also make sure the cover is off before post processing starts and wait to put the cover on until my hands are completely clean.

    I have a 4″ duct fan connected to the exhaust of my resin printer and its vented out a window through a hole in 1″ rigig insulation. I run the duct fan during and after all prints.
    I clean the outside of my resin containers after every use with spillage (after every refill through a screen and occasionally after filling the vat).
    I clean any spillage immediately to prevent it from spreading.
    I use old plastic resteraunt food storage containers under my prints as I pry them from the plate.
    Proper preparation and pre planning antipating spills and accidents is the key to keeping dangerous uncured resin from causing harm or damaging/ soiling things.

    Barry MacGregor

    Reply
  2. Colin Harvey
    June 7, 20201:19 pm -

    So Pleased you posted this and the original it happened to me over the last christmas, got myself a Creality SLA 3d printer that after setting up beside my desk i was less careful than i should have been and ended up with some drips on a blanket that i sat under and slept under during he winter months , so got some through secondary contact onto my arm, and ended up with burns on my arms chest trunk and legs the thing that gets me is folk don’t realise how much care they should take around Photopolymer resin even the vids talking about safety have a disposable face mask and nitrile gloves along with shorts and bare feet , t-shirts and bare arms like their skin is impervious to damage , now i’m not saying cover up in a full hazmat suit but take care and if you get a splash on you wash it immediately. i’d add pics of my burns i i could see how and will happily share them with anyone that wants them but as part of my treatment i went onto to steroids to help heal the damage and like you am left with parts where it doesn’t show much and a few blistery pocks at the contact site ( my arm in my case ) people should treat the resin with care

    Reply
  3. william
    June 7, 20207:47 pm -

    It was so nice of you to share your experience if you would like we could add you to this article also just send us a email at [email protected]

    Reply
  4. Skip
    December 13, 20201:20 pm -

    I’m getting my first Ender3 for Christmas. I thank you for sharing this. I got kids. Now I know. Im sorry but that looked brutal. The pain you went threw must have sucked. Your a professional and we got keyboard warriors who know more than us. They are idiots. Glad you stuck up for yourself.

    Reply
    • william
      December 13, 20201:50 pm -

      welcome to being a 3D printer the ender 3 is not a resin printer but still be safe

      Reply

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