Talk Composites - The Forum for Advanced Composites
Back
Login
Register
Login
Register
Home
»
Advanced Composites Forum
»
Pre-Pregs
»
pre preg curing temps?
pre preg curing temps?
Post Reply
Like
2
pre preg curing temps?
View
Flat Ascending
Flat Descending
Threaded
Options
Subscribe to topic
Print This Topic
Goto Topics Forum
Author
Message
Toffee
Toffee
posted 10 Years Ago
ANSWER
HOT
Topic Details
Group: Forum Members
Posts: 36,
Visits: 118
hi guys, I would like to hear at what temperatures you guys cure your pre preg parts at? I have an oven which I can get up to 70 degrees quite easily, but getting it up to 80 degrees will require some work on my home made oven > can i cure at 70 degrees? if so do i just extend the oven time to say 11hours??
ta
Lee.
Reply
Like
2
Reply
morepower
morepower
posted 10 Years Ago
ANSWER
HOT
Post Details
Group: Forum Members
Posts: 242,
Visits: 1.2K
Fasta (17/02/2015)
Umeco (which was ACG) have a low temp material than can cure from 65 deg C. It will take a long time to cure so the hotter the better and the less time your oven and pump need to run.
Typically for every 10 deg increase in temp your cure time will halve.
http://www.lavender-ce.com/wp-content/uploads/pds1154-vtm260-issue5.pdf
Dont forget that an OOA pre-preg has much less pressure acting on it when the resin begins to flow. The lower temperature gives it more time to flow and speeding up the cure cycle when the resin needs to flow the most may lead to pinholes as the resin has too little time to do its thing.. I do an overnight cure usually from about 6pm through to 10am the following day and get flawless parts. I dont need to speed up the cure as it works out prefectly for me and the heater is quite efficient at the lower temperatures once you get to 85 degrees+ the heater is almost running constantly in my oven which uses a 3kw fan heater and is large enough to do full motorcycle body kits with ease..
Reply
Like
2
GO
Merge Selected
Merge into selected topic...
Merge into merge target...
Merge into a specific topic ID...
Open Merge
Threaded View
Threaded View
pre preg curing temps?
Toffee
-
10 Years Ago
Hi ! Normally, prepreg is curing at 120ºC or 180°C (class 120 / class 180). But you can find "low...
Julien
-
10 Years Ago
^^ cheers fella, I spoke to EC (Matt) today and was told pretty much the same thing, so been and...
Toffee
-
10 Years Ago
Can you post some pics/description of your home made oven ?! I t will interest me !
Julien
-
10 Years Ago
ovens are pretty easy to build, there's loads of threads on here about building them but as a basic...
ChrisR
-
10 Years Ago
I cure at 72 degrees usually with the OOA stuff I use. It is a perfect finish and works really...
morepower
-
10 Years Ago
Umeco (which was ACG) have a low temp material than can cure from 65 deg C. It will take a long time...
Fasta
-
10 Years Ago
[quote][b]Fasta (17/02/2015)[/b][hr]Umeco (which was ACG) have a low temp material than can cure...
morepower
-
10 Years Ago
cheers for the posts and advice guys, some great info here. My oven is simply 100mm thick 8'x4'...
Toffee
-
10 Years Ago
Post Reply
Like
2
Similar Topics
Post Quoted Reply
Reading This Topic
Login
Login
Remember Me
Reset Password
Resend Validation Email
Login
Facebook
Google
Explore
Messages
Mentions
Search