To make papier mâché first add 2 cups 240 grams of flour and 1 cup 240 milliliters of water to a large bowl.
Waterproof paper mache.
Steer clear of traditional water and flour mixtures.
However i have always been curious as to just what is the best.
Then apply at least two layers of the mortar paper mache mix directly to the foam.
Next tear or cut enough 1 inch wide strips of newspaper to cover the object you re papier mâchéing 3 times.
Stir the flour and water together until a paste forms then set the paste aside.
Aug 05 2005 papier mâché is not waterproof or water resistant unless you seal it or use an additive in the mix.
This forms a hard exterior shell.
There is paverplast powder that is mixed with a textile hardener but either can be used by themselves it is waterproof and can be used for outdoor projects.
It is a non toxic line of products used for sculpting with fabric and paper among other things.
Here s an easter island head i made.
Some other tips that can improve your prop s chances of surviving the winds and rains of october.
The basic concept was to use a variety of easily available products and use them together to create waterproof outdoor sculptures.
9 1 2 plastic plate i bought at a thrift store you could also use a plastic bowl of the size you choose water bottle you could substitute a pringles can etc plaster plaster cloth masking tape newspapers paper pulp rust oleum leakseal acrylic paint.
Fear of losing it after all that hard work just seems to be too great a risk to me.
Another option is to use thin set mortar in your top layer of paper mache and paint with exterior house paint.
The downside is that you lose a lot of detail and it makes for a pretty grainy rough surface but it will be waterproof.
Our easy outdoor paper mache recipe starts with flexbond mortar.
When i have spent hours and hours creating a piece of artwork usually the very last thing on my mind is sticking it out in the garden.