Mylar vs Polypropylene Stencils

Mylar and polypropylene are the two most common stencil materials, and both do the job well — but they're not interchangeable. Here's how they actually differ in practice.

Mylar: the industry standard

Mylar is a polyester film prized for its durability and heat resistance. It holds a sharp, clean edge, resists tearing, and stays flat even after repeated use, which is why it's the default choice for signwriters, industrial marking, and detailed artwork. It's also solvent-resistant, so it holds up well against spray paints and stronger cleaning agents used between jobs.

Polypropylene: flexible and budget-friendly

Polypropylene is lighter and more flexible, which makes it easier to wrap around curved or irregular surfaces like pipes, kerbs, or textured walls. It's generally more affordable and well suited to shorter-run or single-event use, though it doesn't match mylar's long-term durability under heavy, repeated use.

Side-by-side comparison

Which should you choose?

If you're stencilling a curved surface once or twice, polypropylene is the practical, cost-effective option. If you're marking crates every week, cutting fine text or logos, or need a stencil that survives dozens of paint jobs without falling apart, mylar earns its higher price.

Still unsure? Tell your supplier what you're stencilling, how often, and on what surface — that's usually enough for them to make the call for you.