Painting Gourds
for
Purple Martins
Gourds should be painted before using for purple
martin housing. But before painting, the insides of the gourds
should be brushed with a good water sealer such as Thompson's Water
Seal. This will help make them last longer. Also, dipping the gourds
in a copper sulfate solution preserves them and makes them last much
longer.
Here are the two methods in detail.
I do a lot
of gourds, so what I do is pour a gallon of Thompsons in a large
container. I use Thompsons because it is a good sealer and it is
readily available in my area. Then, what I do is dip the gourd right
down in the sealer and roll it around making sure I have good
coverage both inside and out. I leave it sit for at least 5 minutes
rolling it and moving it so the coverage is complete. Then, I remove
it, let it drip dry for about a minute and then hang it somewhere
out of the way. I let them set for at least a week, maybe two. I
want the sealer to totally set in the walls of the gourds. Since
this is part of my hobby and a winter project, I'm not in a hurry.
Once, they are dried, I then proceed with the painting.
As
for Copper Sulfate, it's pretty much the same method. Put one pound
in a 5 gallon bucket, then add water. Don't fill the bucket, or else
it will spill out when you push a gourd down into it. Put about 3 or
4 gallons in the bucket. Then, submerge each gourd for 10-20 minutes
with something heavy like a brick. Remove and drip dry, then let the
gourds sit for about a week to make sure they are fully
dried.
The gourds are now ready to be painted. I suggest
painting them, because it will also help make them last longer. The
out side should be painted either white or a very light pastel.
Again two things. The light color will help repel heat in the summer
time and it will also help attract the martins. They seem to look
for the light colored gourds and are drawn to the dark entrance
holes.
The following is an excerpt from an article written by
Charles Myers in issue 7(1) of the Purple Martin
Update, a magazine published by the Purple Martin
Conservation Association. He describes the proper method for
painting gourds so the maximum life can be obtained from your
gourds. This method uses a rubberlike, weatherproof paint called
Elastomeric Coating. Elastomeric Coating will last 3 to 5
times longer than paint, and will seal any small cracks that appear
in your gourds. It's also known as "Kool Seal". It can be purchased
from just about any major paint store. If they don't have it handy,
they can order it.
One note:
Don't be in a hurry. Be sure
and give all the steps plenty of time to dry
properly.
Step #1
Clean gourds with a bleach
solution to remove dirt and mildew. Mix 1 part bleach to 10 parts
water and use a medium bristled brush. After cleaning, let stand
until fully dry. At this point, you can apply the waterproofing such
as Thompsons or Copper Sulphate. Be sure and let stand until fully
dry again.
Step #2
Sand with medium grit sandpaper
to rough up surfaces. 100 - 150 grit sandpaper works fine. Don't
over do it and break through the hard outter skin of the
gourd.
Step #3
Prime areas to be painted, using a
good quality Exterior Oil Based Primer. Let stand for at
least 24 hours until dry. Clean up with mineral
spirits.
Step #4
Using a nylon brush, apply
1 to 3 coats of white Elastomeric Coating with one
good coating being the absolute minimum. More is better than
less. Apply straight from the can and do not thin. Elastomeric is
easy to apply and will not run. Allow a minimum of 4 hours between
coats.
If you can't find the Elastomeric Coating, then you
can us a high quality, exterior gloss acrylic latex paint.
Just be sure and use an oil based primer and let it fully dry before
painting. If your going to go through all this effort to put up your
gourds, finish the job right so they will last.
Follow these
instructions and you will have a finish on your gourds that will
last for many years to come.
My thanks to Charles
Myers and James R Hill for allowing me to use this
excerpt from The Purple Martin Update.
Email Me
If you have any comments, would like to send me
another Martin site, or just say "Hi", please click on my
mail box to send e-mail to
Chuck Abare
Please note:
If you send me an Email and ask
a question and do not get an answer of some sort from me within a
couple of weeks, it's because your return email is not correct. Find
out what your correct email is, correct the problem and then send
your question to me again.
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This page created
and maintained
by Chuck Abare
Woodside Gardens
The Registry of Nature Habitats
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