What polymer is this (or anything close)?

[bcavender]

These material samples exhibit really high stiffness with just a smidge of flexibility to take a hit w/o fracturing. The product is a composite construction siding described as a "proprietary polymeric resin and granular stone" (called C Core - Chelsea Building products) probably targeted as a competitor to HardyBoard, etc mostly for its non-flammability/strength. After a lot of searching for an alt to brick, I bought this siding for our home and was really pleased. The sider had never seen it, but after a few layups ... he told me this kills the Hardy product simply because you can't damage it as it's so tough.

My interest here is to come up with a resin that performs close to this in stiffness w impact resistance for an internal structural stiffener I am trying to design. Don't need fireproof, color, surface quality, UVsafe, etc ... just economical strength. Using a low cost filler that is masonry related would help the compressive strength as well as economics. Getting the elastic modulus above 1-20GPa would help.

Any thoughts and suggestions?

Thank you!
Bruce

 

[Pud]

These material samples exhibit really high stiffness with just a smidge of flexibility to take a hit w/o fracturing. The product is a composite construction siding described as a "proprietary polymeric resin and granular stone" (called C Core - Chelsea Building products) probably targeted as a competitor to HardyBoard, etc mostly for its non-flammability/strength. After a lot of searching for an alt to brick, I bought this siding for our home and was really pleased. The sider had never seen it, but after a few layups ... he told me this kills the Hardy product simply because you can't damage it as it's so tough.

My interest here is to come up with a resin that performs close to this in stiffness w impact resistance for an internal structural stiffener I am trying to design. Don't need fireproof, color, surface quality, UVsafe, etc ... just economical strength. Using a low cost filler that is masonry related would help the compressive strength as well as economics. Getting the elastic modulus above 1-20GPa would help.

Any thoughts and suggestions?

Thank you!
Bruce
View attachment 354View attachment 355

How many of your items to you envisage making?

 

[bcavender]

1000-2000 per month to begin with if strength and economics line up.

What are your thoughts?

 

[MintJulep]

 

[bcavender]

Hmmm … that’s news. Interesting.

I face the typical independent Engineer’s problem.

Once I explain the solution and the niche market it works in … neither party has any use for me further. Getting some kind of legal agreement up front is expensive/wasteful. I’ve seen a couple ‘good intentions’ situations go south when the solution to the unsolvable problem looks so simple afterwards and real money gets involved.

I would really like to get a resin that works, develop a proprietary product, build it w my own company and get into the value add chain rather getting a slap on the back and an Outback Gift card.