Earlier last week I wrote about one lacquer paint option for restoring the BRIO yellow finish, using the Testors Model Masters paint line. I contacted Testors, who is owned by Rust-Oleum, and asked about the child safety of their paint line. Their response is below.
The short of it is, the paints are safe once they have cured. You should wait for 30 days before selling a toy that has been repainted or allowing a toddler to play with it.
Subject: Re: Paint [#91058]
Date: Wed, 10 Sep 2014 15:02:07 +0000 (GMT)
From: ROProductSupport firstname.lastname@example.org
Thank you for contacting Rust-Oleum Product Support.
Rust-Oleum® paints are unleaded and safe for use on toys and furniture. The cautions on the cans refer to the liquid form of the paint and are driven by the solvents in the paint. Once the paint is fully cured, the solvents have evaporated and are no longer in the coating; the remaining coating is a combination of solids made of pigments and additives bound by the resin and can be considered non-hazardous.