I Would Like to use flecks to incorporate color… if I polyurethane along with the flecks, will it's much too slippery for youngsters. It’s a protected walkway but can get moist from blowing rain. Epoxy resists these substances, but extended contact with harsh substances (like battery acid or brake fluid) https://mariotaegh.wikilowdown.com/7743130/how_coating_epoxy_floor_can_save_you_time_stress_and_money