THE Best Coroplast For Flat Underbody Panels!

[Blue Bomber]

Originally Posted by TestDrive

A 48"x48" sheet (largest they sell) is $35.52.
McMaster-Carr

For most cars, you're better off getting two 36" x 48" pieces for each section, one for the left side, one for the right. My car is fairly small, and 48" wide still isn't close enough to cover.

Originally Posted by Shawn D.

No, "Coroplast" is a brand name. The sheet you are talking about is not corrugated, but is instead extruded cells. Corrugations are undulating waves/patterns in a single-thickness material, which is often bonded to other materials (i.e. cardboard). It's not the cells that make the cardboard or plastic corrugated, but the manner of making the cells.

But, Coroplast claims they're "The Leading Manufacturer of Corrugated Plastic":

www.coroplast.com

[Shawn D.]

Originally Posted by Blue Bomber

But, Coroplast claims they're "The Leading Manufacturer of Corrugated Plastic":

www.coroplast.com

They're using that term generically to describe it to folks who don't understand what "corrugated" means.

[1.5Ldave]

Originally Posted by Shawn D.

They're using that term generically to describe it to folks who don't understand what "corrugated" means.

If they dont understand what corrugated means.... how would the term "corrugated plastic" help exactly?

[Bicycle Bob]

Even without precise knowledge, people in a hurry can gain useful information from analogies.

[Funny]

Originally Posted by Bicycle Bob

Even without precise knowledge, people in a hurry can gain useful information from analogies.

Right on Bob!

[Bicycle Bob]

Of course, now we have to use "washboard" where "corrugated" is more accurate, and it takes whole sentences to define the difference between coroplast and cardboard. I used to use "Polypropylene, extruded to resemble corrugated cardboard" but the short form has gotten shorter, and the correct form, longer. Perhaps "fluted" will gain currency.

[botsapper]

Find your local plastics distributors and ask for lexan thermoclear, Thermoclear, Verolite, Twinwall or polygal structured polycarbonate sheets. They are typical thermoglazing glazing sheets for lightweight, high impact resistant & formable sheets. They are usually 48"x 96" and could be ordered up to 72"x 144" so you could under-cover in one sheet! They are clear, opal white or solar bronze. No problem with clean steel/carbide-tipped blades. Go slow and it doesn't melt. Minimal tools? Easiest, score & snap break. If anyone is able-$ and technically inclined, precise laser/water cutting is best.

[93Cobra#2771]

Another nice option-"alumacore". You guessed it, a coorugate material made like cardboard, but very stiff and very light. Not inexpensive or flexible but very durable. Sign shops stock it.