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It kind of looks like your fabric is not coming into contact with the mold in the corners. You def need to press those corners in before infusion. Squeegee the excess resin out of the corners, because it will puddle up in 90 degree corners if you use stretchlon. I also think that the three...

You should consider using texalium fabric. Aluminized glass in a twill weave. And try annodizing some, or a tint added to your epoxy.

Aren't nanotubes like $100 an ounce or some insane amount?

Anti Intrusion bar? You mean like a side impact beam that comes into the door cavity and close to the door skin? Is this a part of your roll cage?

Wax paper over my thick sheet glass work table did the trick. I was looking for a consistent surface texture. Thanks again for the suggestions!

Thank you both. : )

That makes perfect sense actually. I have seen PVA sheet at my local Home Depot. And the thickness i need so it wont fold over and crease on me. Many thank yous! Sometimes i get a brain fart. : )

How can i get a smooth consistent finish on a carbon panel surface without the odd pits and squigles i get using celophane? I have also use Air Tech's Strechlon as a barrier between my bagging layer and the glass panel i use for tooling, however pulling that off the cured panel before heat...

Yes, saran wrap is excellent and we use it everyday actually. But Mike is right, it depends on what your shape is. It does not do well in compound curves using CF because the saran has a tendency to crease in curves and this creates actual creases in the finished surface of CF that really cannot...

No you do not want foam coming in contact with your epoxy or carbon/glass etc. Your mold should be smooth so your part comes out smooth. And you should consider making your mold with modelling clay and or quick setting cement like "cement all". But there are variables i don't know about your...

Soller Composites has white carbon fiber for about $6 a yd. sollercomposites.com

http://www.exitengineering.com/ Basically they expand cf within a mold by use of a bladder like an inner tube. But the bladder i think remains in the part permanently so they must be making low cost bladders out of plastic or something.

We do use vacuum pumps from mini fridges. You can buy a new mini fridge for about $60. We make alot of small cf parts and have 10 mold tables with dedicated mini vacuum pumps mounted underneath each wood table. These tables are on wheels as well. If you need more info on constructing your own...

Yes you do get expulsion in between the seems. However, if your mold rubber is at least 1" in thickness all around, you wont get any weird things happenning to your shape (assuming you are working under a vacuum bag). The seam acts as a vent for excess epoxy. And aids in removing any hidden air...

As an afterthought, If you are new to composites, it really has nothing to do with mold making. Both are completely different realms. But wanting to learn one, will force you to learn the other eventually. But once you get the basics down for both, you are really only limited by your...

Anthony, It does take a little getting your mind around it, but if you are new to composites... i suggest getting to know the materials first so you get a handle on it. Making tubes is indeed a task for those with experience. I for one do not post images of our manufacturing processes (and most...

Right, well.... its just an idea that i am wondering about. If you think about what an annodized finish looks like, very brilliant and has a good ability to catch light well off the surface. Then annodizing alluminum coated glass might be considered ie: Texallium. From a purely cosmetic POV. I...

Are you talking about Texallium? The alluminum coated glass? Also, i was wondering if anyone has knowledge about what can be done to annodize texallium? I recently had some kevlar custom dyed for me and it SUCKED! It started coming off in the epoxy as i was wetting the fabric.

White CF? I don't know anything about it, but it doesn't sound like a logical product to manufacture. White pigment can be used in your epoxy to make your work come out opaque or white. But the white CF i have never seen nor heard about.

From my experience using urethane rubber for a mold, you really always need a mold release which almost always messes up your surface finish. I switched to RTV silicone rubber 2 part mix and have never looked back. No mold release is needed for RTV silicone, and as long as you are careful when...