I'm planning to do a project involving the use of different sand grains to create different surface roughness on several models. Can PVA be used effectively to securely bond the sand grains on the model surface? The models will be exposed to high wind speeds (via wind tunnel test). The surface of the model has smooth finishing (as it's created using Rapid Prototyping).
If PVA can be applied in this case, which type? Unibond? Thanks
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