Hi, I recently made a few prints using the sandstone and arrived in perfect condition. I was doing an outside shoot in the snow and after placing the prints on the snow I realize the water from the melting snow made a little damage to the back of the print. My question is to you guys who uses the sandstone color material , what can I use to prevent this from happening giving that I will be selling these to potential customers?
You need to coat the objects with a clear sealant to help protect them form water or handling damage. Spray sealants are great just be careful to give the objects several light coats to avoid drips. There are all sorts of recommendations and examples in the Post Processing section of threads. What to use depends on your application and part. Some coatings are very clear while other coatings can cause yellowing. You might want to experiment with various coatings to see what works best for your application.