Powertex textile hardener has undergone extensive testing and has been awarded the AP Seal. What does that mean? It means that it has been found to be non-toxic for adult and children’s use.
The Art & Creative Materials Institute, Inc. (ACMI) is an international association, composed of a diverse and involved membership, and is recognized as the leading authority on art and creative materials. Founded in 1936, ACMI was organized to assist its members in providing the public with art and creative materials for children and artists that are non-toxic. The Institute’s members are art and creative material manufacturers, and 
currently there are over 210 members. Of the 60,000 art and creative material formulations evaluated to date, 100% of the children’s products and 85% of those meant for the adult artist are certified as non-toxic. All products in the program undergo extensive toxicological evaluation and testing before they are granted the right to bear the ACMI certification seals.
ACMI is dedicated to providing leadership, guidance and education to individuals, organizations, and society in general to achieve greater participation in art and creative related activities.
The new AP (Approved Product) Seal, with or without Performance Certification, identifies art materials that are safe and that are certified in a toxicological evaluation by a medical expert to contain no materials in sufficient quantities to be toxic or injurious to humans, including children, or to cause acute or chronic health problems. This seal is currently replacing the previous non-toxic seals: CP (Certified Product), AP (Approved Product), and HL Health Label (Non-Toxic) over a 10-year phase-in period. Such products are certified by ACMI to be labeled in accordance with the chronic hazard labeling standard, ASTM D 4236, and the U. S. Labeling of Hazardous Art Materials Act (LHAMA). Additionally, products bearing the AP Seal with Performance Certification or the CP Seal are certified to meet specific requirements of material, workmanship, working qualities, and color developed by ACMI and others through recognized standards organizations, such as the American National Standards Institute (ANSI) and the American Society for Testing and Materials (ASTM). Some products cannot attain this performance certification because no quality standard currently exists for certain types of products.
