I believe the benzoxazines are used in high operating temperature applications where polyimides and BMI's are typically used. Tg on some that I...
What sort of gel time will you be working with? What sort of peak exotherm will the resin have? The dynamic viscosity is on the higher end of...
1708 over Balsa The 1708 biaxial already has a roughly 3/4oz chop attached to it, so as long as you prep the balsa surface, apply the 1708 chop...
Reinforced Thermoplastic Most likely, the board is made out of continuous fiber reinforced thermoplastic tapes or sheets (here is a link to...
In general, the only differences should be that the infusion polyester will have a lower viscosity, have a 0 thix index (no thickeners), and...
Urethane cores Standard urethane foam cores, in high densities, can be used for hard points and transom cores along with sufficient fiberglass...
"Epoxy" Vinyl Esters All these resins are made up of epoxy molecules reacted with adipic acid (I believe) to create vinyl groups on the ends...
aluminum skinned foam sandwich panels I know aluminum skinned PVC foam core sandwich panels have been done before for some modular housing units,...
SP Systems FYI.... SP Systems is now under the Gurit name (www.gurit.com)
Actually, you're a bit off. Below would be the way to get the fiber volume fraction: (1/density of composite) = (0.5/1.73) + (0.5/1.23) =...
Vf of uni composites You will first need to know the densities of both the fiber and resin in order to convert from weight fraction to volume...
Gel coat spraying For a guide on good gel coat spraying, try the CCT guides/manuals from ACMA (www.acmanet.org). They have a "Controlled...
Fiberglass to Steel I've always seen the methylmethacrylate (MMA) adhesives work pretty well for bonding metals to composites. Companies like...
The fiber-resin interface (or adhesion between the two) does play a significant role in compression strength of a carbon fiber composite. Carbon...
Carbon and Polyester The main issue with using polyester with carbon fiber is that the resin does not bond very well to the fiber. In general,...
Pollution, etc. Check out the ACMA (American Composite Manufacturers Association) website for information regarding styrene regulations...
Coremat I believe Alcan Baltek is the main contact for Lantor/Coremat here in the US. They're based out of Northvale, NJ.
Porable foam The first question is: what type of foam are you using (polyurethane, polyiso, syntactic, etc.)? Also, is this intended to be a...
Peel Ply Some composite sandwich panel manufacturers purposely leave peel ply on after manufacture so that the builders will have a clean bonding...
I think what you might be talking about is called "Twintex" (??) which was a thermoplastic fiber/glass fiber fabric (I don't remember if it was...
