Originally, rhinestones were rock crystals gathered from the Rhine river in Germany hence they are called Rhinestone. Rhinestones can be used as imitations of diamonds, In the 18th century when the Alsatian jeweller Georg Friedrich Strass had the idea to imitate diamonds by coating the lower side of glass with metal powder, which is why rhinestones are called strass in many European countries. (Today most people are familiar with the name rhinestone)
A rhinestone or diamante is a diamond simulant made from rock crystal, glass or acrylic. (The best light effects are Crystals) Crystal rhinestones are produced mainly in Austria by Swarovski and in the Czech Republic by Preciosa and a few other glassworks in northern Bohemia. Swarovski Crystal called Austrian Crystal. Crystal rhinestones have typically been used on costumes and jewellery, today Rhinestone can be used with endless possibility.
Crystal Rhinestones have a Flat bottom, known as Flat back Rhinestones and have 2 types of differences in applying.
1.) Non Hot Fix Rhinestone. Applied with glue, and can be applied to most surfaces where glue can be used.
2.) Hot fix Rhinestones. Applied by using heat, Hot Fix rhinestones, also called heat transfer rhinestones, have a heat-activated adhesive (Glue) coating on the back of the stone, mostly use on fabric. They can be applied either by a regular iron, Hotfix Applicator or a Heat Press temperatures of up to 350–400 °F (150–204 °C)
Rhinestones are sized by [SS] Stone Size. You can see this [SS] in Flatback Crystal Rhinestones SS is more commonly used for apparel [PP] Pearl Plate is used for jewellery
If you want to embellish an object that heats up when in use, or an object that might easily damage from high heat, or cannot be ironed on, you will need to use Non Hot Fix Flatback rhinestones.