I was currently using huntsman 8604 370 cps but no longer using, to hard to find. I’m now trying resin research 2050 stuff is thinker even heated up my infusions are to slow, parts are pretty big. I heat up all my epoxys to get a lower viscosity but my current one I’m using the 2050 is not very friendly for infusion. Any body have a good low viscosity epoxy with about 1 to 1 1/2 hr work time. I would like to find something in the 200-300 range
Thanks,mike
Proset inf-114 looks like a nice product. Anyone have experience with this stuff or something similar to it.
The Pro Set resin works, I have used it in Florida, so it was quite warm there. The viscosity was good and it worked quite good.
Just from my feeling I would say it needs quite long tempering to get it perfectly cured.
I use the proset daily, it’s good stuff it just doesn’t degas as well as other systems so just make sure you have good vacuum and you’re able to keep your infusion front moving pretty quickly (your workspace is above at least 70f). Otherwise you might run into some cosmetic issues. The problem with it degassing is that, while it does create a nice froth and then collapses nicely even at lower temperatures (70F; most other systems like the Huntsman, in my experience, need to be at 80F for a proper collapse), even after the collapse you will still notice bubbles forming continuously no matter how long you leave it in the pot. I’ve never experienced this in any other system.
Anyways, it’s great for infusion. I take my parts up to 95F for 20 hours to cure them, because yes, an RT cure will result in warping just from that parts own weight if you demold in 24 hrs.
Edit: actually there is one major problem with it, it gives off some pretty significant corrosive odors.
Thanks Craj, thats something I also realized, but I was not sure so I do not want to write it.
I think there are some additives in the resin like solvents etc that start to become a gas in vacuum.
So keep your infusionspeed not to low and everything is fine.
Thanks guys, I like to run my infusions fast Seems to work well as I’m doing racecar parts and we’re building over duratec primer. Only problem I see with pro set is its hard to find. Composite one has it but you have to order bulk from them. I order 5 gallons at time.
You can buy it directly from proset really easily. 5 gallon kit (it’s actually 5.4 gallons!) is like 400 bucks, and then shipping usually comes out to 80
Thanks I’ll give them a call, I like the viscosity of there stuff and there product looks good. Huntsman would be anther choose but don’t know what product would be about the same.
might be worth for you to check out Gurit T-Prime 20ULV infusion epoxy. Works very nicely
My infusion resin of choice is Applied poleramic sc-10 with their slow hardener. It is low viscosity and infuses glass very nicely at room temp and carbon at 85-95 deg f. You get 2 hours work time at room temp and their is no problems with exotherm in your bucket. You can de mold after 12 hours. It is sold direct from the manufacturer in California and has some very knowledgable staff to help you chose the right resin system or custom make a system.
In my experience the Gurit sp systems infusion resin infuses very similarly to the Applied Poleramic resin. It seems to be slightly easier to infuse with although it foams on the resin front and it is harder for me to source.
The proset infusion resin seems to be more temperamental. It exotherms in the pot a lot quicker forcing one to use a very slow hardener system. So much so that it can take a day or more at room temp before it is safe to stop vacuum on the part without spring back of the laminate stack.
I’m not sure but it seems to me that the Applied Poleramic and Gurit sp infusion systems have an inhibitor in them-- they seem to stay at lower viscosity for a long time until suddenly they start to cure after 2 hours. While the proset resin has a very linear cure to viscosity curve-- the moment you mix it it starts to increase in viscosity until eventually it reaches its final cure state.
I have built a lot of race car body parts over Duratec with PTM&W 2712 they have 3 hardeners to chose from. A lead at the Spacex composite shop told me they use PTM&W.
Thanks good info, proest is sending me a gallon free sample to try, I will look into the other products mentioned.
Pro-set is very good stuff I used it for a long time
I just found out about the proset infusion resin that is 180CPS, sounds pretty good…
I have some of the 2717 ptm&w, haven’t used it yet, have an infusion setup at home and will try it next week. 2 hour cure time sounds good. They say it hardens over night and develops very good high strength in a week.
Tom have you had any issues with the 2712?
I really like the stuff it cures overnight and very strong and ridged I use the “B” hardener and have plenty of time for a large infusion. it flows fast, I have also used it when I needed to do a large hand lay up vacuum bag repair. I used it because of the ply schedule was thick.
it’s also friendly to soric
as far as a post cure if I can I age it in the mold. some of the DP02 fenders went straight on the car.
what does your laminate stack look like with the resins you use?