High temperature tooling system

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#1

Hello,

Im struggling to find a tooling “wetlay” system (resin and gel) to handle 200 degreesC. The main issue is i need a system i can do an initial cure at 40-70 degrees as the customers pattern wont handle much more safely. I can find good prepreg systems but i cant autoclave the pattern incase it becomes unstable and the oven cured systems are a little hit or miss. The last thing i want to do is damage the pattern and also risk alot of expensive materials as the prepregs i have found have MOQ’s of 50m!!

If anyone knows a good epoxy system or similar in the UK that can achieve a TG of 200 (min 190 - 210) after post cure then i would love to hear from you…

cheers

Clavemonkey

#2

I would recommend Huntsman LY8615 with curing agent XB5173 (for infusion) or Aradur 8615 (for wet layup) which has a Tg of around 200-210 degrees C.

Can be postcured freestanding, after an initial cure of 40 degrees C.

I would need to ask on monday to see if we have it in stock or not. (probably not, but you never know)

#3

For such temperatures I use with good results the Axson Epolam 2090.
Fairly expensive, but it works.

#4

Brilliant lads, Thankyou! I have been looking at Crestapol 1234 from Scott Bader which will be a good product but unfortunately due to a chemical they are not allowed to sell it yet… i will check these items out and see if there is data sheets floating around for them…

I have come across the LY 8615, but if i can find another system as this is expensive but, then again if its fit for the job then thats whats needed. There is a good gel system "RenGel SW5200 that has a 200TG. Bit on the limit but should work with a good post cure and some care… :slight_smile:

Your help has been much appreciated and il dig a little deeper into these products.

cheers
Clavemonkey

#5

I know an epoxy system for high temperature(200°C) and chemical resistance, is called HT Epoxy from www.schaller-compositi.it

If you don’t have high temperature resistant or metallic molds, this system must be cured 5-6 hours at 50-60 °C, then the part must be removed with care from mold and placed in an oven, increasing the temperature slowly 20°C / hour up to 200°C , this system costs about $40 for total 46oz (resin+hardener)

#6

try snooping around here

http://www.resinservices.com/custom.asp?CustomID=14