OT: plywood relamination & painting
Kit Wolf
This post is slightly off topic because I'm not building a boat, but
googling around it seems to me that you guys (of both genders) are most
likely to know the answer to my question and I'd be grateful if you can
help me out.
I am trying to repair a plywood seat from a recumbent bicycle. The seat is
made of a single piece of curved plywood that was painted in some unknown
black paint - but this was worn off on the edges. When someone recently
stole my bike and left it out in the rain for several months, water seeped
in and in places the plywood has started to delaminate about an inch
deep. Some bits feel moderately soft but I'm pretty sure the bulk of the
seat is still in good condition and as it would be quite expensive to
replace it, I'm keen to repair it.
I already relaminated the edges by squirting watered-down PVC wood-glue
into them and clamping them together whilst it set. From the outside, it
seems to have worked a treat. Next, I'm planning to sand down the edges of
the seat, and repaint them.
My question is - what should I repaint them with? I already tried to
overpaint the seat with enamel paint, and it flaked off almost immediately
- I don't know what the seat was originally painted with but this sounds
like it might be polyester? Perhaps belatedly, I'm also starting to worry
about what paints are likely to stick to the PVC glue in the plywood.
I'm fairly clueless when it comes to paints & sealants, so If anyone could
suggest what paint I should use, or point me towards an useful webpage,
I'd be very grateful.
Thanks,
Kit
Stephen Baker
<snip bent-rider's woes>
At the risk of being both OT and extremely rude, why not buy a _real_ bike, and
then you can just replace the seat. ;-P
On a practical note, however, to try to reddem myself at least a little bit,
you may find some kind of epoxy paint is the best bet.
Steve "hangs out in alt.mountain-bike when not talking boats"
Brian Whatcott
Wipe with a solvent.
Dry
Rub all over with fine sand paper.
Repeat above.
Paint with your choice
Brian W
Kit Wolf
> The seat was waxed, or much worse waxed with a silicone wax.
Hmm... I didn't think of this but the coating is pretty slippery. Is there
any way to be sure?
> Wipe with a solvent.
> Dry
> Rub all over with fine sand paper.
It all sounds very much like hard work. Maybe I should buy some more wax
(outdoor furniture paint?) to seal the relatively small areas of wood
that I exposed sanding the edges down (without solvent)?
Thanks,
Kit
Backyard Renegade
> On Thu, 04 Mar 2004 02:36:01 +0000, Brian Whatcott wrote:
>
> > The seat was waxed, or much worse waxed with a silicone wax.
>
> Hmm... I didn't think of this but the coating is pretty slippery. Is there
> any way to be sure?
>
> > Wipe with a solvent.
> > Dry
> > Rub all over with fine sand paper.
>
> It all sounds very much like hard work. Maybe I should buy some more wax
> (outdoor furniture paint?) to seal the relatively small areas of wood
> that I exposed sanding the edges down (without solvent)?
>
> Thanks,
>
> Kit
Take an unused green 3M scrub pad, usually associated with dish
washing, and rough up the surface then wipe down with a little solvent
or clean with water and dish soap (weak) and dry thouroughly, then
paint with some good enamal or epoxy re-enforced paint, if you clean
and rough up properly, it should stay on in my opinion.
Scotty
William R. Watt
> My question is - what should I repaint them with? I already tried to
> overpaint the seat with enamel paint, and it flaked off almost immediately
> - I don't know what the seat was originally painted with but this sounds
> like it might be polyester? Perhaps belatedly, I'm also starting to worry
> about what paints are likely to stick to the PVC glue in the plywood.
how dry is the wood now? I'd keep it in a dry atmosphere for a few days,
wipe down the surface with a solvent to remove any dirt and chemicals (wax
was mentioned), rough up teh whole surface with sandpaper or steel wool,
and give the whole seat two coats of whatever colour oil base paint you
want it to be. then to protect the paint, and to keep the paint from
coming off on the seat of your expensive Spandex cycling pants, I'd give
the whole seat two coats of polyurethane varnish. I wrote "oil base paint"
to provide an oil base for an oil base polyurethane. A water base paitn
can be used under a water base polyurehtane. Finally, wait three days to
dry and cure completely in a warm place before riding.
if it were my bike I'd dig around in the basmenet to see what I have in
used paint that would about cover the seat so I could use it up and throw
out the empty can.
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Brian Whatcott
beetle wings. Can't recall the name.....ah yes: shellac.
Paint with this first, then paint with anything.
Brian W
On Thu, 04 Mar 2004 07:11:23 +0000, Kit Wolf