I have bit of a problem. On my pick-up truck I have a snapless soft
tonneau cover. It has a plastic strip that fits into a groove in the
aluminum rail along the sides and back. The edge of the cover then
bends down and is held by a rubber strip that fits into another groove.
The idea is that the rubber holds the lip of the cover down,
preventing the edge from lifting and releasing the plastic strip from
its groove (as long as the edge is down, the edge can't lift and the
plastic will hold).
On one occasion in high winds I had the cover let go on me. Since then
I constantly check it and on occassion I find it has lifted slightly.
The problem is that the rubber is not holding in the groove in the
aluminum rail as much as it used to.
Is there anything I can treat the rubber with that will make it stick in
the groove - require more lift to pull it out? It can't stick too much
as I have to be able to lift it when I want to. I don't want it to grab
the rubber to the point it tears it off or does other damage. I'm
thnking of something that will increase the friction/provide more
suction to hold it in place better.
Hope I've made this clear.
Rubber Renew is a rubber solvent sold in electronics parts shops to
restore hardenered rubber rollers and platens on office machines. It
may work for you by softening the rubber somewhat.
Two problems. It vaporizes pretty quickly and you will have to figure
out a way how to let the rubber soak in the solvent for a while.
The second problem is the solvent is Carbon Disulphide and doesn't do
your lungs any good to breath it in (carcinogenic.) So use that in a
well ventilated place.
Carbon disulfide destroys nerve tissue in your brain. In the old days it was
used to produce textile fibers and people living in areas around those
plants we substantially dumber than the average population. Use your own
"Klm" < firstname.lastname@example.org> wrote in message
I of wondered about this sort of thing while deciding on how to cover the
back of my pickup. If you don't come up with a solution and decide to get
rid of the soft cover, take a look at this product - it's beautifully made:
As far as the rubber, I don't know how to make it stickier, but you could
make it less slippery by thoroughly cleaning it with rubbing alcohol. Clean
the tracks, too. The only problem with this is that repeated applications of
alcohol will eventually dry out the rubber and make it crack. Honestly, I
think you're up against a design flaw, and a natural product (rubber) which
is really not designed to behave as if it were rigid.
1) It seemed to be the case with regard to pinch rollers in tape recorders,
which is why manufacturers like Revox recommended against it, unless nothing
else was available.
2) You're right. I have no idea what polymer this is. Neither does anyone
else who responds to the original question. Maybe we shouldn't respond at
And I've seem them just as bad when *not* cleaned with alcohol.
Check any chemical compatibility table (http://www.omega.com ) and you'll
see the facts about continuous contact of rubber and alcohol (much less
I don't know for sure if it's real rubber. Seems to be the same
material used on door weather strips, wiper blades, etc. This cover
looks very much like mine: http://www.aztrucks.com/Category.asp?product "0
The cover and main rail system look identical but the inside corner is
different in the bottom pic. That one appears to have a corner support
that mine doesn't. However the plastic strip and rubber seal work
exactly like mine.
I thought there would be some sort of application that would increase
the friction of the rubber/metal contact - something that would not
seize the rubber to the rail but simply make it a tad bit more difficult
to pull out.
If there is nothing to treat the rubber with, any ideas about what I can
put in the groove that would grab the rubber better?
Thanks to all who responded so far.
Richard J Kinch wrote:
Maybe a coating of something like contact adhesive, on ONE SURFACE ONLY and
thoroughly dried, would help. As long as you didn't apply it to the other
surface it might just act to make the seal a little tighter but not make it
stick together permanently You could try it on a few small spots first,
perhaps in the corners or where it tends to pull loose.
In camping supply stores there is a spray that makes vinyl and nylon
material slightly sticky and "grabby." I can't recall the name, but it
is sold to spray on slippery self-inflating sleeping pads so that your
nylon sleeping bag doesn't slide off so easily during the night.
Works, too. I have no idea if this would be sticky enough for your
needs but it might be worth a try if all else fails.
I used it on a slick steering wheel once and it worked pretty well at
keeping my hands from sliding around the wheel on cold days. If you
try this don't spray it on your truck as it may dull finish and cloud
windows and is the devil to get off.
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