When I built a mold and a CF hood for my car
I painted but if you want the CF look and its
in the sun all the time.. shoot it with a
quality clear coat.. I used PPG.. its made to
be in the sun light

I guess it's whatever the market will bear I'm willing to pay the price if it's something that I need and something that will work the way it's supposed to..

Mr P ..... I totally agree ! .... NO sarcasm meant here ! .... I in fact have some OEM CF radio panel trim in my 05 CarrotVan and it sure looks good.

NO guessing about it WD ..... and I truly meant GOOD FOR THEM ! .... honestly - I’ve never done any CF work and based on my few convos with people who have - THEY CAN HAVE IT ! .... it’s a PITA to work with ... the cost of materials, the minimal weight saving for the huge dollars spent AND from what I’ve heard reports of - other than SOME of the funny car bodies and a select few drag-race parts - It’s not laid up or vacuum bagged correctly for the maximum weight saving.

Stuff done 110% right ? Contact any F1 team.

Looks good Shiloh!

I have a glass one in the Duster (real light) I love it because it covers all the bars and junk next to the fire wall.

Have you fit it in the car yet?

Unlimited used to be junk. Not any longer. Most of their stuff is high quality.

not yet but it will be fine..I'm sure

I have made carbon parts for airplanes that doubled in weight when I painted them. If you bag them right and get good vacuum, they are uber light. 3 layers of carbon, part weighed 7 oz, painted was over a pound, good for 200 MPH...

ast .... so how do well made CF aircraft parts compare - weight wise - to nicely made FRP parts ? How about the diff in cost ? ...

Cost of materials is 30-50% more than pure bidirectional e-glass if I use the minimum layers of carbon and have double the glass layers, biggest thing is building molds...I found that weight was double or more with straight glass just because I could use way less material with carbon. I used an e-glass cloth layer between the layers of carbon which helped save cost and the carbon was so much stiffer than glass when it is separated with layers glass, glass parts were .040-.125 thick, carbon .020-.030 with a layer of glass in between the carbon. These were not overly large parts, just farings but weight adds up quickly on an aircraft. Tim

Bagging made a huge difference in weight vs just a gel coated wet layup with chopped matt or heavy glass cloth to get the same stiffness.

Speculation or truth?
I picked up a couple glass ones when he was selling them.

Also, its listed as 67-69, but should fit 70-72 as well, no?

be interested to see how it fits up

My 62 Lancer hood, CF/Kevlar/epoxy, with a 1/4" DivinyCell Core weighs 11 lbs. A first run of same hood had a vacuum pump failure during lay up, ended up weighing approx 14 lbs. Guy who bought it as a "second" was happy.

http://www.diabgroup.com/en-GB/Products-and-services/Core-Material/Divinycell-H

. I just seen one that was put into a 69 Dodge Dart it was fiberglass but the same mode. It fit nicely

I saw the same one when I went out to the garage. I got mine from
Chris.

So ast ... jsta as a comparision - what should a FRP one weigh if built with the same craftsmanship as this CF one?

very nice piece !!!

If one is marketing a CF hybrid item , for cost saving, I understand the E glass internal layer, but the cost saving IMO for a personal use item, in the big picture, is not significant. I use Kevlar as a bulk internal layer in addition to its other well known attributes.

It wont be as stiff...and therefore would require more structure and thus more weight to be equivalent to a carbon/epoxy based matrix. Testing is the only way to make a legitimate comparison. Stiffness is the key with carbon, kevlar resists penetration, glass cloth is strong but lacks stiffness compared to the other 2 fibers. 100% of the load in a composite structure goes through the stiffest fiber until it fails, then the load transfers to the next stiffest fiber type. So carbon is the stiffest, then aramids like kevlar, then glass. If you layup just carbon, you are wasting material, you create a box beam like structure if you fill with glass or Kevlar. The separation of layers allows the structure to maintain sufficient stiffness with reduced costs vs. pure carbon.

Unidirectional fibers also lose about 95% of their stiffness when you get 3-4 degrees away from perpendicular to the fiber flow, that is one reason to use a multi directional cloth and layer in 90/60/45/30 degree increments or some variation, meaning don't layup everything in the same direction.

Excess resin also adds weight but doesn't add anything significant to the structure, that is why they vacuum bag, to get rid of excess resin and VOC's. Autoclaves, do more of the same as bagging.

When using Kevlar, it makes it very hard to cut the matrix, that is why i use glass. Kevlar is terrible on scissors and saws. If you throw titanium fibers into the matrix, it is even worse, you will need to cut with a water jet or laser.

Doing some test fitting and trimming so far seems to fit fairly nice