Question regarding some infusion resins

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#1

Hi:

I am just newbie on infusion. I have read a lot. I have gattered several supplies from recomended stores. But I still dobuious about which resin could work the best for my application. My starting proyect is to build a hood for a car, using CF & infusion epoxy, me and my bussines partner are very exited about this proyect. I will do some small trials on smaller pieces firt.

From my readings, I think I can go with Infures from MAS epoxies, but I am doubious about mixing rate, the page indicates to use 100 parts of infures (resin), 30 parts of infucure as a hardener (utilizing MAS fast as an acelerator), then my question is how much acelerator I need to use?

Also, another option I like, is the uscomposites 635 thin epoxy resin system, but I do not know if this is suitable for infusion.

I thinks there are other options, but I think they ask to buy a big qty of material.

Antonio

#2

anybody???

#3

Since you are just learning you can go with.

http://host0140.csmhosting.com/iwwida.pvx?;products?comp=FS1
http://www.fiberglasssupply.com/pdf/polyester/Infusion%20Resin%20040-8085.pdf

Very low viscosity, and is a good cheap resin to test and learn with.

#4

We have a good Resin Infustion Resin system PCR-3121 resin333@aol.com

#5

I would say stick with a polyester or vinylester infusion specific resin, OR use a two component epoxy system that is under 500 centipoise. CPS is a form of measuring the viscocity ( thickness ) of resin. Remember some epoxies even have centipoise measurements for each component, you need the mixed/combined centipoise. Also keep a very close eye on your room temperature… this is critical. keep it as close to 70-77F as possible as this is how most resins are tested for end use. too hot cures too fast and doesn’t release all the trapped air bubbles. too cold the resin thickens and same problem, bubbles and also a longer cure time.

#6

My experience is that most epoxy resins perform well at temperatures high in the 70’s up to 100 F (that is 25-40 degrees C)

Geltime can be dealt with by choosing the right hardener, or amount of accelerant.

#7

If you are going to use Epoxy or Vinyl with fast harder you have to be very expert because the time to wet all the cloths are too small. So use harder to cure not less than 40 minutes. The expert shop can show you the right harder for you. My opinion? use Vinyl with 1 or 1:30 cure.