When it comes to the safety of our children it is crucial to chose a finish that is not toxic and remains durable. NanoTech is a great product to put over linseed for a washable film. This dries fast, clear and very low odor. This product works well over cribs and children's toys. The other recommendation is Mountain which is all natural, smells like oranges and dries slower than NanoTech. Mountain can be wiped on and wiped off to create a more durable, washable surface with more sheen than linseed. It can also be brushed to form a film. You can have the peace of mind knowing your child's safety comes first all the while not compromising the look and durability of your child's finished project!