POLYMER, is any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, that are multiples of simpler chemical units called monomers. Polymers make up many of the materials in living organisms, including, for example, proteins, cellulose, and nucleic acids.                                                                         

TWO TYPES OF POLYMERS                           

Organic polymers play a crucial role in living things, providing basic structural materials and participating in vital life processes. For example, the solid parts of all plants are composed of polymers. These include cellulose, lignin, and various resins.                                         

Natural polymers include proteins, which are polymers of amino acids, and nucleic acids, which are polymers of nucleotides—complex molecules composed of nitrogen-containing bases, sugars, and phosphoric acid. Starches, an important source of food energy derived from plants, are natural polymers composed of glucose.                                                                                             

The types of Polymer that we are primarily interested in are:                                                                                                                 

Polystyrene: Available in both a rigid form and foam, it’s widely used for insulation purposes.

Polyethylene: Applied in vapor barriers and as panels for reducing moisture penetration.

Polyurethane: Known for its excellent insulation capabilities, it’s often used in spray foams for thermal efficiency.   

The world of Polymer Technology is very complex and involved. For now, I am satisfied to know that the scientists and researchers “know”. We at Lakes Area Spray Foam have confidence in the companies we use based on our ‘due diligence’ and experience. If you would like to research it further:  https://www.britannica.com/science/polymer .