Most macromolecules, such as proteins, nucleic acids, and polysaccharides, are polymers composed of simpler building blocks linked covalently. However, lipids stand out as the major class of macromolecules that are not considered polymers. Unlike proteins, which are long chains of amino acids, or nucleic acids, which are sequences of nucleotides, lipids are generally formed by the attachment of fatty acids to a backbone, like glycerol in triglycerides but are not formed by repetitive monomeric units linked in long chains. Lipids are critical for various functions, including energy storage, cell membrane structure, and signaling, highlighting their importance despite their non-polymeric nature.

Yes, Speedball Permanent Acrylic Screen Printing Ink can be heat set to ensure durability and washfastness on fabric. Heat setting is a process where ink is applied to fabric and then exposed to heat for a certain period, typically using an iron or a heat press. For Speedball inks, it's recommended to use a household iron at a medium to high setting for 3-5 minutes on the reverse side of the printed fabric. Ensure continuous movement of the iron to prevent scorching. This process cures the ink, making the print more resistant to washing and handling. It’s crucial not to skip this step if you want your prints to last on fabric items. Always check the specific instructions on your ink to achieve the best results.

Before installing self-adhesive flooring, ensure the subfloor is clean, dry, and even. Remove all dirt and debris with a thorough vacuuming and mopping. For concrete floors, check for moisture levels; they should not exceed 4%. Use a self-leveling compound to fix any unevenness. If laying over existing floors, ensure they are in good condition and firmly adhered. Fill in any cracks or holes. Additionally, acclimatize the flooring in the room for at least 48 hours. Measure the space correctly for a precise fit, keeping in mind to leave a slight expansion gap around the edges to accommodate for temperature and humidity changes. Finally, plan your layout, starting from the longest wall and proceeding towards the opposite end, ensuring the tiles or planks are aligned correctly for a professional finish.