A single-component epoxy is an adhesive that requires no mixing and is engineered to cure when exposed to a specific condition, typically heat. Unlike traditional two-component epoxies that require combining a resin and a hardener, single-component epoxies are premixed, offering ease of use and efficient application. These epoxies are designed to provide strong, durable bonds to a variety of surfaces including metals, plastics, and ceramics. They are widely used in manufacturing, electronics, and aerospace industries due to their robust bonding capabilities and resistance to chemicals, heat, and other environmental factors. The curing process is initiated by applying heat, which allows for controlled curing and strong adhesion. Their no-mix nature simplifies the application process, reducing errors and waste, although it requires equipment capable of reaching the necessary curing temperatures.

Cellulose acetate is a man-made polymer derived from cellulose, which is the primary component of plant cell walls, most commonly sourced from wood pulp or cotton. This material is produced through an esterification process where acetic anhydride replaces hydroxyl groups in the cellulose molecule. This replacement makes cellulose acetate more soluble and thermoplastic, rendering it suitable for various applications. Its versatility stems from its ability to be molded into different forms and its resistance to water, chemicals, and solvents. Common uses include fibers for textiles, film bases, and plastic parts in eyeglasses and other products. Despite being synthetic, cellulose acetate is considered more environmentally friendly than many other plastics due to its biodegradable properties.

Krylon does offer a repositionable spray adhesive among its range of adhesive products. This particular adhesive is designed to provide a temporary bond, allowing materials to be adjusted, removed, and re-applied multiple times without leaving residue or losing stickiness. It's ideal for projects requiring a forgiving application, such as positioning stencils, layouts for presentations, or even in crafting and scrapbooking where placement might need to be tweaked. However, it's important to note that while repositionable for a certain period, the bond strength might decrease over time and with multiple repositions. Always ensure to follow the manufacturer's instructions for the best results, and test it on a small area first if possible to ensure it meets the project's requirements.