You can't give a single specific gravity value for "polymer" because it's a broad category encompassing many different materials with vastly different densities.

Here's why:

* Polymer Variety: Polymers are huge, and their properties vary greatly depending on:

* Monomer type: The building blocks of polymers (e.g., polyethylene, polypropylene, polystyrene, etc.) each have unique densities.

* Molecular weight: Longer chains generally lead to higher densities.

* Branching: Branched polymers tend to be less dense than linear ones.

* Additives: Fillers, plasticizers, and other additives can significantly alter density.

Finding Specific Gravity:

To find the specific gravity of a particular polymer, you need to:

1. Identify the polymer: What type of polymer are you working with?

2. Check a reference source: Look up the specific gravity in a material properties database, a polymer handbook, or the manufacturer's datasheet.

Example:

* Polyethylene (PE): The specific gravity of polyethylene varies depending on the type (high-density, low-density, etc.). You'll find specific gravity ranges for different PE types in technical data sheets.

* Polypropylene (PP): The specific gravity of polypropylene typically falls between 0.89 and 0.91.

Let me know if you have a specific polymer in mind, and I can help you find its specific gravity!