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MOLDED DIMENSIONS, LLC
Custom Molder of Rubber and Cast Polyurethane Components.

Door Bumpers: MDI Products in Action

Posted on March 30, 2018 by The Molded Dimensions Team

Often going unnoticed, door bumpers are important at work and in your home to protect your walls from dings and dents caused by doorknobs. Today, we’re talking about the features our door bumpers have that make them stand out from the competition.

  • Material Compound: These bumpers are made with 35 Durometer Shore A grade elastomer. It also features a fastener chemically bonded to the SBR elastomer for easy attachment to equipment.
  • Impact Resistance: The impact or shock resistance of an elastomer is determined by striking a sample with a swinging pendulum (hammer). The sample is placed at the lowest point of the arc traveled by the pendulum head. Measuring the difference in the distance of the upswing of the pendulum after the impact, compared to the same upswing with nothing in its path, determines the energy in breaking the sample which is the measure of impact strength.
  • Non-marking Grey Color: The material and its impact resistance keep the bumper from making any marks on the door or wall, and its grey color keeps it hidden from view.

MDI Products in Action: Elastomer Hoses

Posted on August 3, 2017 by The Molded Dimensions Team

These elastomer hoses are used for marine, recreation vehicle and automobile engine exhaust and can be custom-made when there is limited space in an engine.

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Creep & Stress Relaxation

Posted on November 17, 2016 by Nick Cusatis

compressionfigure5Creep
When subjected to load, all elastomers exhibit an increasing deformation with time, know as creep. This occurs at any stress level and takes place in compression, tension and shear loadings and varies for each type of loading. In service, creep can be minimized by using low working stresses and avoiding high temperatures. No rapid method has been developed for its measurement because there is no know way of accelerating time effects without introducing inaccuracies in predicting rate of creep. Continue reading


Why does Cast Polyurethane (PU) Make Such a Great Roller?

Posted on April 14, 2015 by Nick Cusatis

Cast polyurethane, formulated to have a balance of characteristics associated with premium materials, is a great solution in demanding roller applications.  In addition to its superior material characteristics, urethane can be molded and finished easily.

Material Properties
screen-shot-2015-04-14-at-12-24-51-pmSuperior abrasion resistance
In applications, such as manufacturing diapers, forming food product bags, or cash counting systems, urethane offers the abrasion resistance necessary to reduce wear, thereby reducing the frequency of worn roller replacement. Continue reading

A PEEK AT OUR PARTS

Pentathane Applications - Wipers Wiper used to material handling in food processing equipment. This material is both FDA approvable and abrasion resistant for durability.
Pentathane Applications - Wheels Pentathane® chemically bonded directly onto precision sealed bearing molded to tight concentricity specifications.
Elastomer Applications - Hose Hose configured for limited space in marine engine application.
Elastomer Applications - Tube Oil resistant molded tube used on combustion engine.