Mykin's Blog of Rubber and Seal Design

Learn how to read SAE J200 material specifications for rubber parts. A practical guide for sourcing custom molded rubber parts in Michigan and across the U.S.

ASTM D2000 material spec explained with a clear chart and examples. Learn how ASTM D2000 defines rubber properties for O-rings, gaskets, and molded rubber parts.

Here you will find a rubber properties chart for all popular rubber materials. This rubber materials comparison chart gives you key factors in your choice of rubber mechanical properties. Use the rubber comparison chart to find the most economical seal.

Understand how rubber material hardness impacts sealing, durability, compression set, and long-term performance in custom molded rubber parts. Learn how to choose the right durometer for your application.

Learn how rubber color impacts performance, strength, and identification. Understand when color is cosmetic—and when it changes how your rubber parts perform.

Seals are mission-critical across industries—automotive, aerospace, food processing, medical gear. When they fail, repairs, downtime, or worse can hit hard. Most seal issues trace back to just a handful of causes. Spot them. Fix them. Save your process and your budget.

Many believe O-rings compress like sponges but they don’t. Learn how O-rings really work and what it means for custom molded rubber seals and applications.

Properties and Comparison Between Viton and Kalrez

Key properties and limitations of Silicone and Fluorosilicone

This is the correct way to size your rubber grommets. Tell us how you will use your grommets and we will size it for you and pick out the right material.