Chemist help needed - comparison of wood stabilizing resin contents VacuSeal vs SK Resin 1505

FredyCro

FredyCro

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Unfortunately CJ can only be imported from UK/USA to EU, shipping and import taxes are really a deal killer for a small time maker like me. Some of you might remember my trials with ImpResin90 and with a 2K-epoxy. Next I would like to try out VacuSeal and/or SK Resin 1505. I read good stuff on both of them, but when I went through data sheets I realized the contents (acrylics) are not the same.

Is it possible to say which mix could work better or have better properties for wood stabilizing (in terms of final hardness, finishing, resistance to other chemicals, temp stability)?

SK Resin 1505 is the third variation of the formula, VacuSeal is a relatively new product. SK also cures at a higher temp (105 degrees C). I would like to buy a 5l to save some money and do larger wood pieces/batches at once. I will mainly do open pores woods which are easy to stabilize to ensure full saturation of the pieces.
 
One has mostly hydroxypropylmethacrylate (three-carbon chains) with a little phenolated thinner, and the other has a mix of three different acrylates (two-carbon. twelve-carbon, and six-carbon chains). No way to say which will work better from the makeup, but I suspect they will polymerize similarly. My gut says the simpler one will be the one to try first.
 
Stacy E. Apelt - Bladesmith said:
One has mostly hydroxypropylmethacrylate (three-carbon chains) with a little phenolated thinner, and the other has a mix of three different acrylates (two-carbon. twelve-carbon, and six-carbon chains). No way to say which will work better from the makeup, but I suspect they will polymerize similarly. My gut says the simpler one will be the one to try first.
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Thanks, another interesting thing. VS dynamic viscosity according to the sheet is 32-34 mPas, while SK is 1000-1300 mPas. That seems like an awfully lot difference to me?
 
I will bump this in case someone else might have an opinion on the topic. Maybe C Cushing H. ?

Is it possible at all to tell the properties of the resin based on the contents?
 
FredyCro said:
I will bump this in case someone else might have an opinion on the topic. Maybe C Cushing H. ?

Is it possible at all to tell the properties of the resin based on the contents?
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Hi Freddy. When you first posted I sat back and tried to reconcile the viscosities against that of cactus juice, but the different units made my head swim … and decided I had to sit down with paper and pen and a unit converter to do a real comparison. Unfortunately I am dealing with a death in the family, and I am executor… so I will be really occupied for quite a while and won’t be able to look at this for quite a while. I’m sorry about that Freddy :-(.

I do agree with Stacy that it would be really hard to predict performance just from the composition. Usually people vary composition slightly to avoid infringing on a patent of a competitor, then they just test to see if it works. I also agree with Stacy that the less viscous liquid should penetrate better … but the risk is liquid flowing out of larger pores when you remove it from the soak tank. You probably just need to try it … and move quickly from the tank to wrapping in foil and then into the curing oven.

Again, apologies I can’t put more time into this right now..
 
Cushing H. said:
Hi Freddy. When you first posted I sat back and tried to reconcile the viscosities against that of cactus juice, but the different units made my head swim … and decided I had to sit down with paper and pen and a unit converter to do a real comparison. Unfortunately I am dealing with a death in the family, and I am executor… so I will be really occupied for quite a while and won’t be able to look at this for quite a while. I’m sorry about that Freddy :-(.

I do agree with Stacy that it would be really hard to predict performance just from the composition. Usually people vary composition slightly to avoid infringing on a patent of a competitor, then they just test to see if it works. I also agree with Stacy that the less viscous liquid should penetrate better … but the risk is liquid flowing out of larger pores when you remove it from the soak tank. You probably just need to try it … and move quickly from the tank to wrapping in foil and then into the curing oven.

Again, apologies I can’t put more time into this right now..
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Sorry to hear about that, my condolences. Please forget about tagging you here.
 
12345678910 said:
Can you get some samples pro stabilized, analyze them and work backwards ?
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I imagine that would involve serious lab work and a chemicist. Another problem is that professional service (like K&G) use 2 different formulas depending on the wood and equipment (high pressure chambers) that is not available to a hobbyist.

I heard good reviews on SKResin, it is also the third variation of the formula of the German company specialized on resin products, which makes me think that they improved upon they first two itiretations of the product.

Vacuseal should be similiar to, but not as good as CJ.
 
FredyCro said:
Sorry to hear about that, my condolences. Please forget about tagging you here.
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That’s ok, and thank you. Not totally unexpected, but things are a mess, and will take time and work to untangle…

It seems like organizations seriously want to avoid actually talking to you on the phone. I’m spending most of my time negotiating through a “convenient automated voice based system” and then sitting on hold for a loooooong time (often to then just be disconnected) . Most frustrating…
 
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