What Makes It Odor-Proof?

It’s the Rubber.

Polymer47™ is our proprietary rubber blend—and the material behind the truly odor-proof seals used throughout the UNDURCUVUR product line.

Odor is carried by gases, and gases can gradually pass through many common rubber-like materials. This is known as gas permeability. When developing Polymer47, we selected a specialized blend of polymers designed to dramatically reduce that permeability and keep odors contained where they belong.

Why Not Just Use Silicone?

Silicone is flexible, durable, and useful for many applications. It is also naturally highly permeable to gases, which makes it a less effective choice when odor containment is the primary goal.

We use food-grade silicone in certain UNDURCUVUR products where it is the right material for the job. However, the caps, sleeves, and other components responsible for creating our odor-blocking seals are made with Polymer47.

Based on our material comparison, silicone rubber has approximately 450 times the gas permeability of Polymer47. That difference is why our odor-control components are not made from ordinary silicone.

Designed for More Than Odor Protection

Polymer47 also provides the durability and grip needed for products intended to be carried and used every day.

• Creates a tight, odor-blocking seal

• Helps products stay securely in your hand or pocket

• Provides a durable, protective rubber surface

• Resists sticky residue as well as—or better than—silicone

• Used in the caps and sleeves responsible for odor protection

Polymer47 was custom developed and extensively tested to help UNDURCUVUR products deliver the discreet, dependable experience our customers expect.

Try It for Yourself

We think you will notice the difference.

Every purchase includes free U.S. shipping and is backed by our 30-day money-back guarantee. Return an unused product within 30 days of delivery for a full refund of the product purchase price.

Used it and decided it was not right for you? Contact us. Although used products do not qualify under our standard return policy, we may still be able to work something out.

Questions? We are always happy to help.