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Sheri,

we've used this on a few exhibit parts. the stuff we use -which is what I think your using - is pretty tough - its a polyurethane  and might tear or wear through eventually, but won't chip. if it tears it can be peeled off by small fingers.
I think the bigger issue is the coatings are very grippy and so might not slide over the model very smoothly.

not possible to remove the stiff bristles and reload with some softer fibres?

good luck
Stuart kohlhagen
Manager Research and Development
Questacon




-----Original Message-----
From: Informal Science Education Network on behalf of Sheri Cifaldi-Morrill
Sent: Wed 25/11/2009 10:55 AM
To: [log in to unmask]
Subject: anyone ever use Plasti Dip?
 
ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

We are experimenting with a product called Plasti Dip (a synthentic rubber coating) on oversized toothbrushes that children use to practice brushing on an oversized mouth.
The current toothbrushes we use are very hard plastic and are damaging the mouth (chipped teeth and all!). 
The toothbrushes we have are great, just really hard. The idea is that if the brush has a softer rubber coating, it most likely won't damage the mouth when children hit the mouth with the brush.

Anyone use this product (or a similar one) in an exhibit setting? I'm curious the longevity and am concerned about chipping of rubber (which then creates another whole host of issues).

Many thanks in advance,
Sheri


Sheri Cifaldi-Morrill
Director of Exhibit Design
Stepping Stones Museum for Children
Mathews Park, 303 West Avenue
Norwalk, CT 06850
203 899 0606 ext. 234
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