This supplement provides an explanation of the
waterproof coating that I use to waterproof cardboard boats. I have 2 boats that
are over 23 years old that are still used to this day due to the excellent
waterproofing properties of the coatings discussed here.
Acrylic Elastomeric Roof Coating
The recommended waterproofing material for cardboard
boats is an acrylic base elastomeric
roof coating. Elastomeric coatings can also be purchased with solvent
bases. The acrylic base coating is the most desirable for waterproofing
cardboard boats as this type of coating is environmentally-friendly. There
are numerous manufacturers of acrylic elastomeric roof coatings. Elastomeric
coatings can be purchased from local home improvement stores as well as
Due to the number of acrylic elastomeric roof coatings
available on the market today, and the fact that new products are constantly
being developed, I have chosen not to specify any particular manufacturer.
Instead I am providing a definition of the product, the properties that make
it superior for waterproofing cardboard boats, and suggestions for how to
find these products.
An acrylic base elastomeric roof coating is a
“rubber-like” coating that provides the following
benefits/properties for waterproofing
Dries to a
10 times the
thickness of paint.
Won’t crack, peel,
flake, chip or blister.
Long term exterior
Fungus and mildew
Easy to use,
non-toxic, and low VOC content.
Superior adhesion to
Available in a wide range of colors and can be custom tinted with
acrylic coloring agents.
Purchasing an Elastomeric Roof Coating
elastomeric roof coatings online by searching with the following search
- Elastomeric roof coating.
- Acrylic elastomeric roof coating.
Decide on a few
products that interest you.
Ask yourself some of
the following questions to help make a decision.
- Does the product come in a color or colors I want to use?
- Acrylic elastomeric coatings can be colored with the color of your
choice at a paint store that has the ability to color acrylic paint.
- Is the product within budget?
- Is the product available through a local reseller?
Ask your local home improvement store if they carry elastomeric
If you cannot find the product you are interested in at a local
merchant then contact the manufacturer and find out where you can
purchase the product online.
Purchasing locally will save shipping costs.