I bought some laminate of two layers of 300 with polypropolene core
non-woven synthetic core, stitch-bonded between two layers of binder free chopped fiberglass.The highly conformable needled polypropylene synthetic core
anyone use this and I am thinking about using ccp 8085 it is a real light resin
Can be used without a problem. It is developed for RTM-light, which is a highly used method for producing all kind of parts. These mats accept a wide range of resins, even filled resins up to 1:1 ratio.
Brand names of these mats are Polymat (Scott & Fyfe) or Rovicore (Chomarat). I am sure there are others as well.
confused on what core this is. If it’s open fiber core, then it would just suck up resin and make the part heavy full of resin?
Yes, it is. It is a semi-compressible core with CSM on both sides.
Heavyweight for those used to carbon and glass fabric, but convenient for those working with RTM-light
What’s the target application for these resin heavy parts?
ah. Maybe tubs and the like? where weght isn’t a concern, but high speed and customization is?
Tubs are worse: They are mainly sprayed with a “no roll” system, which is a highly filled resin, applied with (robot)chopper/spray gun. No rolling required. Laminate is cr@p but does the job.
The parts which are made with above mentioned mat:
-air ducts for cooling towers
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-horse trailer roofs and doors
-toadstools (see the sh1tty design, with sharp corners)
-bridges (yes, this bridge is composite. Suitable for 60 tons traffic.)
And many, many more.
Thanks for sharing that. With all the hype on carbon fiber cars and rockets it’s easy to lose sight of the many other applications of fiber reinforced composites.
There are so many applications. Did you know the buttons on your shirt are very probably polyester? Drain gutters are made of polyester (polyester concrete) and composite tabletops and worktops.
Also normal cars sometimes have quite some composite parts, although it is not always seen or reveiled. Probably 99% of composites is in non-weight critical applications. No carbon, no fancy stuff, just speed of production.
Most internet discussions is on that 1% that is left…
water slides, outdoor dinning tables, playground equipment,
FRP molds are also used for casting concrete shapes.