High Impact Polystyrene (HIPS) Dissolvable Filament - 1.75mm 0.6KG (FFFILA-HIPS) HIPS (High Impact Polystyrene) is a dissolve-able filament that is frequently used as support material. It acts as a great support material because it is easily removed with Limonene solution, leaving the clean high-quality print that you want behind. HIPS requires no scraping, cutting, or any other method of removal that may cause damage to your prints. more in-stock