First Infusion with core material

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#1

Im infusing a large panel using fiberglass with a Soric XF core.
This is my first time infusing using a core and I had a question about how much resin to use.
When I normally infuse a part without a core, I weigh my cloth out and mix up the same amount of resin by weight. This usually results in having more resin then I need, so I then adjust the amount of resin that I use down as I make more pieces and can accurately see how much resin my part uses.

Now my question is regarding core material. Should I treat the weight of the core material the same as standard cloth? If I weight out all my cloth and core material and mix up an equivalent amount of resin, would that be a good starting point?

Im just worried that I will either mix up way too much resin or too little for the infusion. Any help is appreciated!

#2

that core consumes a lot of resin. Best thing to do is make a small test panel, like 12"x12" and you can calculate the additional resin consumption from that.

#3

That information is in the spec sheet. Just google Soric XF spec.

#4

Thanks for the tips. I found the tech sheet as a PDF on their website.

Anyone have experience with any other cores for infusion? I’ve also been told the divinymat would be good to use in my application.

#5

I’ve used Soric Core in a test panel once in lieu of infusion mesh. Kinda freaked me out when I was infusing it since I couldn’t see the flow front on top, but instead I saw it wet out from the middle. The infusion went well though and I made the test panel into a clipboard which I gave to my brother.

#6

Was chatting to a sailplane repairer the other day and he reckons that Rohasell seems up to the job, link here http://rohasell-on-line.com/

#7

Rohacell is quite different from Soric. Both in price and performance.

As for resin usage, it is in their spec sheet, and is some 500-600 grams per m2 per mm thickness.

When using Soric, make sure your resin feed line is in contact with the Soric. And indeed, it infuses from the middle outwards.

I infused a 23mm (almost 1") thick vinylester / glass / Soric XF (3x6mm) laminate, which infused nicely. I made it into a floorboard which provides access to the crawlspace under my house. The wooden one started to rot.