To differentiate between polypropylene (PP) and polyethylene (PE), observe their characteristics and perform simple tests. Firstly, appearance: PE is typically more translucent than PP. In terms of physical properties, PP has a higher melting point (130-171°C) compared to PE which varies (LDPE 105-115°C, HDPE 125-135°C). A floatation test can also be done; both polymers float in water, but PP might feel slightly stiffer. Chemical resistance is another indicator - PP generally has better resistance to chemicals compared to PE. However, the definitive method involves a flame test. PE burns with a blue base and yellow tip, dripping, and smells of paraffin. In contrast, PP burns with a yellowish flame, drips, and has a slight, sweetish odor. Always take safety precautions when performing flame tests.

Don Loomis is not directly associated with a specific resin product or technique commonly recognized in mainstream crafting or industrial resin applications. In the vast field of resin art and manufacturing, names that usually come up are those of artists, companies, or innovators known for creating unique resin formulas, art pieces, or resin application techniques. If Don Loomis is connected to a particular project or product in the resin industry, it might be on a smaller scale or within a niche community not widely reported on. For accurate information, specific details about the context in which Don Loomis is mentioned would be necessary. It's also possible that the inquiry could refer to a relatively obscure or emerging figure in the resin art or manufacturing scene, underlining the importance of supporting and recognizing emerging talents and innovations within the crafts community.

Changing the ink on an Epson WorkForce 2630 is straightforward if you follow these steps: Ensure your printer is powered on. Open the scanner unit to expose the ink cartridge holder. Wait for the cartridge holder to stop moving to the replacement position. Press down on the empty ink cartridge to release it, then remove it from the slot. Take your new ink cartridge, shake it gently (while it's still in the package), then remove it from the package. Remove the yellow tape from the bottom of the cartridge, being careful not to touch the green chip or the ink nozzles. Insert the new cartridge into the slot until it clicks into place. Close the scanner unit. Your printer may take a few minutes to charge the ink. It’s now ready to use. Remember, using genuine Epson cartridges is recommended to avoid potential issues.