Please read carefully before using the product instruction, Large area before use, please do small area test, Please make sure that the sticking surface cleaning and drying, The best use of temperature should be between 18-32 degrees, The product after opening the cover please timely cover titch removal for the adhesive residue on the cover. These are glue is an excellent glue for multipurpose use, perfect glue for affixing rhinestones. It is industrial strength, permanent bond, washer/dryer & photo safe, waterproof, printable, and non-flammable. It is also flexible, so it's ideal for affixing rhinestone crystals to clothing or costumes (check my store for rhinestones!). It can be used for glue on glass, plastic, metal, and many surfaces.