Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-29-2013, 05:24 AM   #11 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,307

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 30.49 mpg (US)
Thanks: 7,309
Thanked 2,246 Times in 1,733 Posts
I thought that I had read that it was expensive at Home Depot, although I imagine they give a bulk discount. How much have you guys paid at sign wholesalers?

I may have mentioned somewhere, an old teacher ran for election and posted pictures on Facebook of his campaign signs. I thought that I could have put them to good use and I do not know who else would, besides an Ecomodder, I just felt bad that he lost the election.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-29-2013, 06:02 AM   #12 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,307

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 30.49 mpg (US)
Thanks: 7,309
Thanked 2,246 Times in 1,733 Posts
Thanks for sharing this! I bookmarked it!

How many of you guys prototype with cardboard and how many with coroplast? I just wonder if it would be worth trying out cardboard before using coroplast. I found five 48"x96" sheets for $16.25 and $2.76 each for ten or more at Double Faced Corrugated, so if you could actually ever use ten sheets of coroplast, it might be worth going through cardboard first.
  Reply With Quote
Old 04-29-2013, 03:20 PM   #13 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 29,357
Thanks: 8,351
Thanked 9,117 Times in 7,527 Posts
My last post was from a tablet, so I didn't give the full URL.
PolyMetal—High-density polyethylene (HDPE) with aluminum face and back.
PolyMetal Lite—High-density polyethylene (HDPE) with aluminum face.

I've experimented with rolling/braking/shearing samples; it's really stout. My local supplier is Multicraft Plastics. They quote $110 for a 4x8 sheet. It also come in 4x10 and 5x10' which might save buying a extra sheet for any given size project. So, 10 times as expensive as coroplat that's out of stock. Nudo have other products that might be of interest:

Basically aluminum skinned coroplast,I haven't got pricing:
AlumaCorr—Corrugated/fluted polypropylene copolymer with aluminum on both sides.
Quote:
Features and Benefits

Innovative white or black corrugated polypropylene core provides a lightweight, durable panel.

Finished with aluminum on both sides.

Excellent panel for exterior use as it will not corrode nor rust.

UL - Listed.
1/4, 1/2 or 3/4" plywood skinned with vinyl:
WhiteWood—Smooth vinyl face laminated to exterior grade plywood (one or two sided.)
  Reply With Quote
Old 04-09-2025, 02:39 AM   #14 (permalink)
EcoModding Lurker
 
Join Date: Apr 2025
Location: USA
Posts: 1
Thanks: 0
Thanked 1 Time in 1 Post
Appreciate you sharing this—definitely bookmarked

Do you usually start prototyping with cardboard or jump straight to coroplast? I'm thinking of testing with double-faced corrugated cardboard sheets first. Found a deal on Ucanpack: five 48"x96" sheets for $18.50, and if you grab ten or more, it's just $3.25 each. Might be smarter to experiment with cardboard before committing to a full coroplast setup
  Reply With Quote
The Following User Says Thank You to peterlopez For This Useful Post:
freebeard (04-09-2025)
Old 04-09-2025, 05:41 AM   #15 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,211
Thanks: 141
Thanked 2,825 Times in 1,982 Posts
Use what ever you can find, stiff paper, cardboard, corrugated cardboard whatever.

Use the paper products as templates for the plastic, wood and or metal finals.
__________________
George
Architect, Artist and Designer of Objects

2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

You cannot sell aerodynamics in a can............
  Reply With Quote
Old 04-10-2025, 03:33 AM   #16 (permalink)
Master EcoModder
 
Join Date: Aug 2022
Location: South Africa
Posts: 839
Thanks: 334
Thanked 339 Times in 295 Posts
Quote:
Originally Posted by kach22i View Post
$11 a sheet beats the heck out of $25 a sheet I paid.

I didn't need nor want 10 sheets though.

This is strange.



I still cannot find the all black stuff on their website.
Group Buys aren't big on this forum, but definitely an option.

ie: You get say 4-5 (or more = cheaper) close-by guys together that each want 2-3 sheets and just send the sheets on to them.

I have done/run a good number of group buys on other forums.
They saved everyone a ton of money and it's basically tradition that the organizer gets to add 10-20% for his trouble.

  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com