Fiberglass epoxy resin and hardener can be purchased at various locations, both online and in physical stores. For online purchases, websites like Amazon, eBay, and specialized stores like West Marine offer a wide range of options catering to different projects. These online platforms provide convenience and often a broader selection than physical stores. For in-person shopping, hardware stores like Home Depot, Lowes, and specialized boating or marine supply shops are likely to stock these materials. It's essential to select the right type of epoxy and hardener for your specific project, as they come in different formulations for tasks like laminating, coating, or bonding. Consulting with experts in forums or stores can help guide your decision.

The letter that represents a carbohydrate polymer is "C." Carbohydrate polymers are large, complex molecules composed of long chains of monosaccharide units. These include substances such as starches, cellulose, and glycogen, which play critical roles in biological processes and as energy stores in organisms. Polysaccharides, as they're scientifically known, are integral to both plant and animal life, serving structural functions in plants and energy storage in animals.

To properly prep metal for epoxy primer, start by cleaning the surface with a solvent-based cleaner to remove any oil, grease, or dirt. Follow up by sanding the metal with a medium-grit sandpaper, such as 180-220 grit, to create a surface that allows better adhesion of the primer. Ensure that all rust and corrosion are removed during this process, using a rust remover or converter as necessary. After sanding, thoroughly wipe down the metal with a tack cloth to remove all dust and debris. If you're working with bare metal, applying a metal etch product before the primer can enhance adhesion and corrosion resistance. Finally, apply the epoxy primer in a well-ventilated area, following the manufacturer’s instructions for the best results.