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Re: Carbon fiber grip supplies
Posted by:
Jon Hood
(---.sub-174-228-13.myvzw.com)
Date: March 22, 2019 11:42AM
Tom,
Mike used a silicone tube that was split lengthwise so it could be opened up for the pouring process - then the silicone tube was sandwiched with 2 halves of pvc, capped on the ends and a ring for support in the middle. After it cured - he just pulled the pvc halves away and the silicone tube peeled away like a banana peel - this left a core with the mandrel in the center and an 1.25 in ID core - it looks like a pretty good process - of course looks can be deceiving ! Haha - I want to try both processes and see which one I like the best. As I said above - I think the pvc shell part of the mold is pretty straight forward - just trying to figure out the silicone tube part. I have been thinking about trying to cast the tube with liquid silicone rubber like what is used for mold making. Again I don’t want this to become to complicated but trying different ways to achieve the same result is part of the fun of rod building to me. Jon Hood Re: Carbon fiber grip supplies
Posted by:
Robert A. Guist
(---.triad.rr.com)
Date: March 22, 2019 01:49PM
Hello all.
Yes the mold split down the length and the silicone part wares out after a while (I now use the pan method Tom speaks of). Tight Wraps & Tighter Lines. Bob, New Bern, NC. Re: Carbon fiber grip supplies
Posted by:
Mark Talmo
(71.147.59.---)
Date: March 22, 2019 04:58PM
Rather than pouring your own foam core, why not start with a foam block, bore a hole in the center and turn it to shape / size? I have used Divinycell composite foam cores for numerous projects including an UL (52lb) 8ft CF/Kevlar boat. Aircraft Spruce and Specialty carries thicknesses from .125in to 3in in sheets ranging from 6in X 10in to 48in X 96in in densities of 3lb/cu ft to 6lb/cu ft. As a cost example; 6 X 10 X 1in, 6lb/cu ft = $11.65, that’s less than $1.50 for a 6in grip core. Divinycell was designed for composite sandwich applications and is well suited for epoxy, polyester and vinylester resins and hence will be right at home with a CF skin. Mark Talmo FISHING IS NOT AN ESCAPE FROM LIFE BUT RATHER A DEEPER IMMERSION INTO IT!!! BUILDING YOUR OWN SIMPLY ENHANCES THE EXPERIENCE. Re: Carbon fiber grip supplies
Posted by:
Jon Hood
(---.hsd1.fl.comcast.net)
Date: March 22, 2019 06:02PM
Thanks Mark!
Another option to test! Jon Hood Re: Carbon fiber grip supplies
Posted by:
Dick Ross
(---.sub-174-216-43.myvzw.com)
Date: July 17, 2019 12:23PM
If you are going to pour enough cores,you can mix densities to get what you want. I make my own 6lb density by mixing 8 and 4 together. I have used all 3 methods for cores and have bought mud hole and Pacbay’s cores. I liked using Mike’s mold but the silicone dries out after awhile and tears or pieces tear out inside and I also seemed to get more air bubbles than the pvc or baking pan. I like the pvc but sometimes the cores won’t come out. The baking pan works well if you have multiple mandrels and either a bandsaw or tablesaw to cut down to a square hole centered stock. Mudhole cores are nice but I like mine a larger diameter and Pacbay’s are heavier. Sorry, only registered users may post in this forum.
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