A custom made polystyrene/quikrete background, which sealer would be better, as in, lasts longer, is less toxic, and looks less glossy...
http://www.lowes.com/pd/Ghostshield-Clear-Natural-Finish-Penetrating-Concrete-Masonry-Brick-Sealer-Water-and-Salt-Repellent/999911195
http://www.lowes.com/pd/Ghostshield-Clear-Natural-Finish-Penetrating-Concentrated-Concrete-Sealer-Waterproofer-Densifier/999911193
http://ghostshield.com/shop/siloxa-tek-8500/
http://www.lowes.com/pd/Thompson-s-WaterSeal-Clear-Multi-Surface-Waterproofer-Low-Voc/3027004
Or, can you suggest a better one?
http://www.lowes.com/pd/Ghostshield-Clear-Natural-Finish-Penetrating-Concrete-Masonry-Brick-Sealer-Water-and-Salt-Repellent/999911195
http://www.lowes.com/pd/Ghostshield-Clear-Natural-Finish-Penetrating-Concentrated-Concrete-Sealer-Waterproofer-Densifier/999911193
http://ghostshield.com/shop/siloxa-tek-8500/
http://www.lowes.com/pd/Thompson-s-WaterSeal-Clear-Multi-Surface-Waterproofer-Low-Voc/3027004
Or, can you suggest a better one?