UHMW-PE For undertray - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 06-20-2008, 11:49 AM   #1
Senior Member
 
Join Date: Aug 2008
Posts: 114
Country: United States
UHMW-PE For undertray

Has anyone looked at using Ultra High Molecular Weight Polyethylene (UHMW-PE) as an undertray material? Its the stuff they use on the hockey rink edges, ..crap its a huge list. It's a very diverse plastic. It's also very slippery (close to teflon), very resistant to abrasion, highest impact strength of any thermoplastic, highly resistant to corrosive chemicals (oxidizing acids excluded), and its used in weeving for bullet proof vests. It's neat stuff. Apparently, its thee plastic to use for skidplates. Comes in very thin sheets (0.125") and is flexible so you could take a sheet and just screw it down to your underbody. It comes in just about whatever color you want too.

It's worth looking at, and installing. at .602lbs/sq. ft at 0.125" its also fairly light. A friend of mine used almost all a 4' x 8' sheet to cover his rally car underside. That's less than 19lbs and will keep your car clear of big rocks, sticks, tire shreds from beating the underside.

It's not terribly cheap. a 4' x 8' sheet of natural color is $190 or so. Might be more if you pick it up locally, that's an online price (+shipping is more!).

I plan to find smaller sheets local and start at the rear of the car and work forward.
__________________

almightybmw is offline   Reply With Quote
Old 06-20-2008, 05:32 PM   #2
Junior Member
 
Join Date: Mar 2012
Posts: 4
Country: United States
Obviously new, admittedly ignorant....

Why would you start at the back of the vehicle and move forward with this?
__________________

d1morgj0 is offline   Reply With Quote
Old 06-21-2008, 11:00 AM   #3
Registered Member
 
Join Date: May 2008
Posts: 21
Country: United States
thats really not a good way to save money. your trying to save money from spending it on gas but youll buy a 190 piece of plastic instead of some cheaper stuff you can find for next to nothing. your friends case is a differnet story. the amount of debris that you will find on the road is 1% of what he will see off road so the abilities that plastic gives your friend, doesnt need to be applied on road.

also, you should really start at the front of the car and work your way back. if air is turbulent in the front of the car, all the smoothing/aero in the world isnt going to help it when it reaches the back of the car.
ophidia31 is offline   Reply With Quote
Old 06-21-2008, 02:50 PM   #4
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
I have some small sheets of something that might be this stuff. It's very slick.
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 06-21-2008, 05:40 PM   #5
Registered Member
 
Join Date: Dec 2007
Posts: 170
Country: United States
Quote:
Originally Posted by 05rolla View Post
Obviously new, admittedly ignorant....

Why would you start at the back of the vehicle and move forward with this?
From the installation point of view:
The idea being the leading edge of each sheet is then set behind the sheet in front so as air travels along it "cascades" over the joins instead of meeting a lip at every joint.

From the aero benefits perspective then yes beginning at the front is the better way to go.

Pete.
GasSavers_Pete is offline   Reply With Quote
Old 06-22-2008, 02:56 PM   #6
Registered Member
 
Join Date: Jan 2008
Posts: 14
Country: United States
uhmw1 is incredibly amazing material. It is the cheapest plastic at least aroud here. My dad is a machinist and it is the plastic he uses in toxic (sewage treatment plants) environments. It is a great plastic but I think it may be more than you need, IMO

But I don't think that it is worth the 190 bucks though. Given that is an election year. I personally would just wait until one of those political reps come rounds asking to put a sign in your yard. But then I like the cheap side of things.
__________________
ajac is offline   Reply With Quote
Old 06-22-2008, 07:16 PM   #7
Registered Member
 
Join Date: Jun 2008
Posts: 123
Country: United States
Quote:
Originally Posted by ajac View Post
uhmw1 is incredibly amazing material. It is the cheapest plastic at least aroud here. My dad is a machinist and it is the plastic he uses in toxic (sewage treatment plants) environments. It is a great plastic but I think it may be more than you need, IMO

But I don't think that it is worth the 190 bucks though. Given that is an election year. I personally would just wait until one of those political reps come rounds asking to put a sign in your yard. But then I like the cheap side of things.
or call them
COMP is offline   Reply With Quote
Old 06-22-2008, 08:55 PM   #8
Senior Member
 
Join Date: Aug 2008
Posts: 114
Country: United States
Ahh, yes for the price, on a pavement road only, not worth the 190 bucks. On the rally car, beyond worth it. If I had a truck, and took it offroading, as well as on road, it'd be worth it. but then maybe I'd use steel and wouldn't care about FE.

Pretty neat plastic despite the price.
__________________

almightybmw is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 11:27 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.