www.industrialpolymers.com 713-943-8451. Industrial Polymers Corporation USA manufacturer of Styrospray which can be spray applied to any inflated balloon shape. StyroSpray creates a hard plastic shell over foam paper and balloon shapes. Visit our web site for more information or call 800-766-3832 for technical advice. This product can be used for hard coating carved foam shapes, paper mache, wood and inflated balloons.