This post from another RV forum might be another idea too.
"I was looking for a way to keep bug splatters, road
tar and rock chips from nailing the front. Even though I've got good sized
rubber mud flaps on my van - and a long overhang - a lot of stuff still gets
through. Small rocks are a big culprit here in the desert southwest.
I bought a 4X8 sheet of white, 4mm thick Coroplast, then trimmed it to cover the
entire frontal area. If you've never seen Coroplast it looks exactly like
corrugated cardboard - but is made from plastic. Check out www.Coroplast
more details. It is commonly used in the sign business.
I chose Coroplast for several reasons:
1. It gives on impact, effectively spreading out the force from a stone hit.
While it will leave a mark on the surface of the Coroplast it will completely
protect what's underneath it.
2. Inert - no worries about water.
3. You can wash it.
4. Its highly flexible so it can follow the curve of the front.
5. Easy to cut with a utility knife.
6. CHEAP! A 4X8 sheet was $20.00...
7. Easy to install with small squares of 3M OUTSIDE double sided tape cut from
a roll. I installed them about 18" apart around the entire perimeter, and put a
few in the middle as well. Did I mention use OUTSIDE double sided tape?
8. Easy to remove - just heat up the tape with a hair dryer and pull hard.
9. Extremely light - I would bet the entire piece I used weighs maybe a pound.
When and if I ever sell my trailer that shiny new front - free of stone hits and
bug splatters - is sure to increase the value. ;-)
It took me about an hour from start to finish, make sure you clean the mounting
surface thoroughly from any wax or grime. I used a strong solution of Dawn
dish-washing liquid to strip it, followed by a wipe down with alcohol and a new