Stewarts System durability and longivity

bob turner said:

Popcorn, anyone?

if it is non-toxic, how come my buddy wore a full body suit and face mask? You ought to be able to spray it with a bandanna around your nose.

Is there absolutely nothing in that finish coat that can hurt your lungs except for particulate matter?

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andy@stewartsystems.aero said:

I cannot speak to why you friend felt the need to wear that gear. What we recommend is simply a charcoal or organic vapor respirator. If you breath paint you are painting your lungs. It should be common sense that this would not be a good idea. Stewart systems is by far the safest conventional covering system on the market, that is indisputable. That being said, we would not recommend drinking it, with the exception of the thinner, I drink that daily. If anyone would like the SDS sheets, please email us and we will send them. That being said, I generally do wear a paint suit when I spray for two reasons, one it mitigates dust, and two, I like to keep my natural color. The overspray does stick…. As far as it being hazardous, all of my kids spray all of our products. As the owner, I am keenly aware of every raw material that goes into our products and I rest easy knowing that myself and my family use them. As far as any issues with blisters and such, I have seen these issues a few times. Nearly all, if not all of them have been in Alaska. It is still a small minority of the aircraft using our products in Alaska. The fact that we do not see this issue in the lower 48 leads me to believe that environment is the key factor. The fact that it happens on a small minority of aircraft indicates that is not an overall issue with the system but that there is unique circumstances to the ones that have experienced it. We did update the manual in 2017 and again in 2019 making it mandatory to seal the weave of the fabric with Ekobond to eliminate moisture exposure to Ekofill on the inside. As far as I can tell that seems to have mostly if not entirely eliminated it. It is also possible that a key factor is applying the products in an environment that is too cold beyond our temperature range, or not allowing EkoFill to fully dry before applying topcoat. EkoFill needs to be warm and dry before painting. I would like to hear feedback if anyone has experienced blisters with the Ekobond sealed weave. We have several shops in Alaska that we communicate with regularly use our products on many aircraft one after another and are not having any issues, so we know there is not an issue with the products or process if done correctly. If there are any issues that any of you experience with our system we certainly would like to be aware of it right away so we can isolate what factors may be involved. We have never been able to duplicate this issue in Ohio. If you have any questions, please feel free to email me at andy at stewartsystem dot com. (forum doesn’t allow me to post email…)

Andy

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Marty57 said:

Your above comments, Sir, show me that you have no real knowledge of Stewart Systems and are simply out to bash the product. Our system is not a resin; where do you get that idea? Fiberglass resin is not even remotely similar to a our paint. Waterborne systems are highly toxic you say ..... how is that even possible? You admit above that you have no idea of the makeup of the product but make claims about its chemistry. As an STC'd finishing system, it passes or exceeded all FAA certification for adhesion, flexibility, and longevity. Your above comments are simply incorrect and false.
Marty57

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Formandfunction said:

Waterborne paint is more than 50% polyester resin,every single one made and nobody denied it. Poly is a mechanical bond,not chemical. I suspect that's the root of the adhesion problems. If your products are different I would love to see your data sheet and I honestly hope your stuff gets better and better with time.

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bcone1381 said:

Seal the weave of the fabric with diluted Ekobond Cement. Some of there old videos have excellent content but shows a process that does not. I recommend Stewarts put effort to modifying these videos with the updated sealing process.

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Dan Gervae said:

Around 2019 I think Stewart’s added the step Marty mentioned with the 3:1 glue/water mix to fill the weave. Do this before the UV coats and you get excellent adhesion. If anyone on here knows if a situation where this new step was done and still had trouble, I’d be interested to know about it.

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