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It did not change at all. It is such a small percentage so I would be surprised if it did. There are many great polymers on the market. There are also some ok ones and off course some not so good ones. Different jobs dictate different types. One of the biggest mistakes and a catalyst in failing...

Good to know. None are natively black, or at least not that I'm familiar with. You just add what ever color pigment you want post mixing.

Thank you kindly. Laughter is such an important part of life. At least to me it is, but I'm a silly Dane. Perhaps not during or after you complete the before landing checklist....:unsure:, but other why, smiles and laughter is good. The links to the major material is in thread #5. The second...

Und zeeeeen vie getz to make ze koooorners und edgez..... Jaaa..... :ROFLMAO::sneaky::rolleyes::sleep: Traced the outline of the main door, and trimmed 4 edge flange mathingies. Taped the 4 strips in place and added ....... wait for it......... Waaaaait...... THIXOTROPIC......:geek: Then...

There is nothing like breaking a mold, uncovering a bond job or other ways unmask a layup the next day. It is just so rewarding. It is also important to realize this on a big build like this where it certainly is easy to get lost in a row boat on the ocean. These small steps, achievements is...

Once you begin mixing composites with different torsional stiffness the box, in this case, will not flex evenly. One of the benefits to Thixotropic (THIX) is that it actually stays somewhat flexible as a joint and still hold on to what ever you bond with it. In the aerospace industry it is...

I will disagree on the flex Glass vs Carbon, but that's ok, as this It is just my opinion, and there are plenty room for both of us.....;) I dont recall the exact numbers for the CTE for both glass vs Carbon. I just remember they are different. It has been a looooong while since I did anything...

The strip was trimmed in 1 inch with and two is needed to facilitate the flange for the weather strip. Then I am dapping my hands in dangerous waters. This is perhaps not for the novice, so perhaps try this on a small piece before full scale. If you bend composites sharply after curing it...

No fiber glass. There are no advantages glass will offer over carbon, only disatvantages..... well perhaps exept for the cost.... :) Bonding diferent materials with different coeficient of thermal expansion can creat stres over time with heat cycles of the matrix. That is just one of a few...

I could. Adding carbon bi-directional tape is not easy to make looking pretty. It is a lot of work whereas unidirectional tape would be asthetically prettier and easier. Bottom line, I am certain that I have the strength I need, and then some. Truth be told if I do anything it would be...

The edges on the bottom are now trimmed and the small void due to the angle has been filled with Thixotropic. Now just finishing up the other edges as they cure. In the mean time I am casting the plate that will hold the main rear door/window seal. A bit of release agent..... 3 strips of the...

Time for a bit of filler material.....Pun intended.....and make the flanges that will bolt to the truck bed. As forementioned there are several great ways to join edges and corners. Non necessarily better than others. What matters is what works for you. Mixed a bunch of Thixotropic and then I...

Yeppers. I was a bit surprised myself as I did not have good coverage of the thixotropic. There are so many great ways to join edges and corners and as long as you use the right bonding agent they are all good, and some stronger than others. Were I to lay down a few layers of Carbon tape on top...

Destructive testing is indeed fun. I find it interesting but not just for the purpose of reaching the breaking point, but very much so past its breaking point see what failed and how it failed. When I made my first bash plate many moons ago I used a small throw away piece, went to the wall...

You are quite welcome. Yeah, there are books written on how to best join corners and more or less they all work. The main thing to focus on is what works for you. If you have experienced Carbon Fiber cracking at levels higher than Fiberglass I would tend to say that every thing being equal you...

We got to blow stuff apart.... Bwaaaamuuuuhahahahaha. I bonded two pieces of the layup just like I did on the box. Then covered it with Thoxotropic. Essentially same joint as on the box. The piece is 1.5 wide but as the thixotropic hardened it sorta ran away and only covered half of the 1.5...

Time to work the rear.....ehhh....uhhmmm aft part of the camper shell. First we will cut and bond the top cross brace. That will be the anchor point for the Stainless continuous hinge that will pivot the rear do.... Ok... I gotta quite this.... Uhmmm aft swing flapamadoor plate thing. Note the...

Alright for all of you mayhem, madness and destruction aficionados....... Destructive testing video coming up this afternoon. I managed to blow somming up. It was however intentional and fabricated by a few left over scraps. Stay tuned.

Masked off the edges and corners. I find it best to use the yellow paint tape. It has better adhesive than the blue. If you use the blue the epoxy tend to find itself into and under the masking tape. Then you mix the Thixotropic first, then add the pigment and begin build the void. It is...

It's quite OK Tony. I am actually surprised not more have raised that as a concern. It is such a discussed subject..... how to join the pieces. We're I to build a full size box I would reinforce the edges with a few layers of tape both inside and outside. After I built the front box on my then...