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Knowledge about dielectric properties of polyurethane
Views: 75 | Update Date: May 08 , 2019

Polymers have good dielectric properties and are widely used as insulating materials. The physical quantities representing dielectric properties include dielectric constant, dielectric loss (tan_ delta), volume resistivity (p_ v), surface resistivity (p_ s) and breakdown strength (or breakdown voltage)....

What are disadvantages of polyurethane and how Pepsen avoids them?
Views: 75 | Update Date: Apr 29 , 2019

What are disadvantages of polyurethane and how Pepsen avoids them? High Temperature and Build-up heat Normal polyurethane can work long time under temperature 80 degree C, work temporarily under 120 degree C. It will also create a build-up heat easily when it is compressed back and forth...

What is the difference between polyether and polyester urethane?
Views: 93 | Update Date: Apr 18 , 2019

What is the difference between polyether and polyester urethane?   There are many kinds of polyurethane.They can be separated into two main categories as polyester and polyether polyurethane according to variety of polyol. They have their own advantages and disadvantages, so there is no better one...

Knowledge about versatile polyurethane pad
Views: 92 | Update Date: Apr 10 , 2019

Polyurethane is well known for its excellent abrasion and impact resistance, so it is usually chose by engineers to use them to stop, support, bearing load, absorb shock and clamp.   However, they can be classified as many kinds though all of them are called polyurethane pad. Based on different...

10 years Alibaba Golden Membership of Custom Molded Polyurethane
Views: 97 | Update Date: Apr 02 , 2019

Pepsen has been in this industry since 1996 and committed to export business from 2009.   In order to have better communication with International customer, Pepsen joined Alibaba as golden membership since 2009 and it has been 10 years since then. During this time, we are honored to...

Newly equipped with the 3rd polyurethane elastomer casting machine
Views: 95 | Update Date: Mar 28 , 2019

Newly equipped with the 3rd polyurethane elastomer casting machine   Generally there are two ways of casting polyurethane, hand casting and machine casting .They have their own advantages and disadvantages.   Hand casting is more flexible, it is usually used for low volume...

FAQ: Are polyurethanes resistant to heat?
Views: 96 | Update Date: Mar 21 , 2019

FAQ: Are polyurethanes resistant to heat?   Heat resistance is rarely raised for casting polyurethane, because dynamic performance is the only disadvantage of urethane. Especially under the condition of high speed and high load, the build-up heat will destroy urethane quickly, that is...

What's the Difference Between Rubber and Urethane Bushings?
Views: 143 | Update Date: Mar 12 , 2019

What's the difference between rubber and urethane bushings? Urethane is a relatively new material invented by Doctor Bayer around 1935. Urethane bushings are commonly used in car’s suspension, steering, and wheel components to prevent sound and vibrations.   There are many...

FAQ: What is “Cast Urethane Parts”?
Views: 100 | Update Date: Feb 28 , 2019

FAQ: What is “Cast Urethane Parts”?   It always makes people confused about these words even if they have been worked in urethane industry for several years.   There are two meanings of “cast urethane parts”: #1 One always comes up with master...

The Big World of Polyurethane 2: What is hardness of polyurethane?
Views: 142 | Update Date: Feb 21 , 2019

The Big World of Polyurethane 2: What is hardness of polyurethane? The Shore hardness is one of methods used for measuring material properties of elastomers, rubbers and plastics   Hardness is measured by using a instrument called a “durometer.” For testing polyurethane, there are...

Frequently asked questions about custom polyurethane parts
Views: 98 | Update Date: Jan 17 , 2019

Q1: Are you factory or trading company? A1: Yes, we are a factory who have been focusing on standard and custom casting polyurethane parts since 1996.   Q2: How many workers in your factory? A2: We have 85 workers and 80% of them have been working for us over 5 years....

PEPSEN polyurethane is chose to produce thousands of polyurethane rollers for a leading powerful air-powered paper roll movers manufacturer in the USA
Views: 134 | Update Date: Jan 11 , 2019

Shanghai, Jan 7, 2019 —PEPSEN polyurethane is selected to produce thousands of polyurethane rollers for a leading powerful air-powered paper roll mover’s manufacturer in the USA. Our customer had many requirements for these rollers with strangest bonding strength .These rollers are for air-powered paper roll...

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