Blog on the Latest Rubber Topics and Design Technologies

MADE FRONT PAGE ON RUBBER AND PLASTICS NEWS ON JANUARY 25, 2021 - CUSTOM MOLDED RUBBER

Our Blog

Blog on the Latest Rubber Topics
and Design Technologies

The Coi Rubber Blog is where you’ll learn about molded rubber products and more. Topics include molded part design, elastomer selection, and injection, compression, and transfer molding of custom rubber products for OEMs.

COi Rubber Recognizes Napoleon Castillo for Nearly a Decade of Service

21 Oct 2026

David C

Recognizing Napoleon's nearly decade-long service

What to Include in a Custom Rubber Part RFQ

20 Oct 2026

David C

A clear custom rubber part

How to Compare Plastic Tensile Data Before an RFQ

20 Oct 2026

David C

Compare ASTM D638 plastic tensile

ASTM D471: How Oil and Fluids Affect Rubber

18 Oct 2026

David C

ASTM D471 explained: how rubber

EPDM vs Silicone Rubber: Which Should You Choose?

18 Oct 2026

David C

EPDM vs silicone rubber: where

How Rubber Tensile Strength and Elongation Are Tested (ASTM D412)

17 Oct 2026

David C

How ASTM D412 tests rubber

What Is Compression Set in Rubber and Why Do Seals Fail?

17 Oct 2026

David C

Compression set measures how much

Rubber Trade Show

19 Aug 2022

David C

Live list of US shows

KPMG Automotive Related Rubber – COI Review

24 Feb 2021

David C

Automotive rubber industry trends monitor

Rubber and Plastic Containers imported to USA

23 Feb 2021

David C

2021 rubber and plastic imports

Rubber and Plastic News – US Minority Rubber Manufacture

22 Feb 2021

David C

COi Rubber's journey in rubber

Transfer Molded Rubber Parts Market Share

18 Feb 2021

David C

Transfer molded rubber market share

Can rubber conduct electricity?

17 Feb 2021

David C

Is rubber an electrical insulator?

The Trade War Between the U.S. and China (and Its Effect on Rubber)

21 Dec 2018

David C

Tariffs and the rubber market

How To: Get a Quote for Rubber

26 Oct 2018

David C

What a rubber quote needs

Neoprene vs Natural Rubber in Applications

26 Oct 2018

David C

Neoprene versus natural rubber compared

Natural Rubber vs Synthetic Rubber

12 Oct 2018

David C

Natural versus synthetic rubber differences

Can Rubber Freeze in Low Temperature?

12 Oct 2018

David C

How cold affects rubber seals

Where Rubber Comes From

14 Sep 2018

David C

Natural rubber comes from trees

What is Rubber Used For?

31 Aug 2018

David C

Everyday products made from rubber

Sourcing Offshore Manufacturers

10 Aug 2018

David C

Pros and cons of offshoring

NVH Rubber Bumper Design: A Case Study

3 Aug 2018

David C

Fixing a squeaking rubber bumper

Why Rubber Is Used As Vibration Absorbers

2 Aug 2018

David C

Why rubber absorbs vibration well

Which Rubber is Fire Resistant

1 Aug 2018

David C

Fire resistant rubbers compared

Rubber Deterioration in an Air Oven – Test Method

3 Jul 2018

David C

Air oven aging test method

Rubber Property – Effects of Liquids – D471

27 Jun 2018

David C

ASTM D471 liquid immersion testing

ASTM – Rubber Guidelines

26 Jun 2018

David C

ASTM D2000 rubber classification guide

Rubber Durometer of Rubber Hardness

8 Apr 2018

David C

How rubber hardness is measured

Hot Runner vs Cold Runner Molding Systems

13 Jan 2017

David C

Hot runner versus cold runner

Rubber Product Design Guidelines

8 Dec 2016

David C

Design rules for molded rubber

Tolerance Factors for Molded Rubber Products

3 Nov 2016

David C

What affects molded rubber tolerances

Ultra-High MW EPDM as a Replacement for NR

27 Oct 2016

David C

EPDM as natural rubber alternative

Rubber Engineering: Resilience & Hysteresis

13 Oct 2016

David C

How rubber rebounds and heats

Why Custom Molding Works Well in Medical Devices

21 Sep 2016

David C

Why molding suits medical devices

Rubber Molding for Medical Devices

21 Sep 2016

David C

Molded rubber for medical devices

Rubber Grommets for Hoses, Wiring, and Cabling

21 Sep 2016

David C

Grommets protect hoses and wiring

Tight Tolerance for High Quality Molded Products

15 Sep 2016

David C

Choosing the right molding tolerance

Origins of the Rubber Molding Machine

29 Aug 2016

David C

From injection molding to rubber

Get Involved with the Rubber Industry

26 Aug 2016

David C

Choosing a rubber supplier partner

Benefits of Custom Rubber Molding

24 Aug 2016

David C

Why choose custom rubber molding

Custom Rubber & Plastic Grommets

23 Aug 2016

David C

Are custom grommets right for

How To Mold Rubber

15 Aug 2016

David C

How rubber is molded

Why Is Recycling Rubber Necessary?

15 Aug 2016

David C

Why rubber recycling matters

What to Look For in a Rubber Supplier

11 Aug 2016

David C

Checklist for choosing rubber suppliers

Natural and Synthetic Rubber Compounds Used by Rubber Manufacturers

9 Aug 2016

David C

Natural and synthetic rubber types

Compression Molding Defined

27 Jul 2016

David C

Compression molding explained simply

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