EPDM, TPE, and Silicone Rubber Edge Trim

EPDM, TPE, and silicone are three commonly-used compounds for rubber edge trim. Which elastomer is right for your sealing and insulation application?

Rubber Edge TrimRubber edge trim is used to finish and protect exposed metal edges on vehicle and machine doors, kitchen equipment, and other sheet metal surfaces. Typically, these industrial rubber products are U-shaped so that the retainer section can be pressed over the metal edge. Materials of construction include solid, sponge, or dual durometer rubber. Durometer, a measure of hardness, describes a material’s resistance to compression or pressure. The higher the durometer, the harder the rubber.

Elasto Proxy keeps standard edge trims in stock, and can custom-fabricate rubber edge trim that meets your precise specifications. We can also supply edge trim where the retainer contains either a wire core or a segmented steel core to help absorb impact. For design engineers and technical buyers, choosing the right product often begins with compound selection. In this technical article from Elasto Proxy, we examine three common compounds for edge trims: EPDM, TPE, and silicone. Continue reading EPDM, TPE, and Silicone Rubber Edge Trim

How to Choose Bulb Trim Seals

Bulb Trim SealsBulb trim seals provide sealing and insulation for doors, hatches, and enclosures. These industrial rubber products have bulb and retainer sections that are made of different materials. The bulb section provides sealing and insulation under compressive force. The trim or retainer presses onto a flange or substrate.  Each section of the seal also has a different durometer or hardness to support proper compression.

This technical article from Elasto Proxy is designed to help you choose the right bulb trim seals for your application. In addition to compound selection and part dimensions, product designers and technical buyers need to consider color, texture, internal supports, and exterior finishes. Your application may also require flame-resistant compounds or rubber that meets specific industry standards. Continue reading How to Choose Bulb Trim Seals

RoHS Compliance and Rubber Products

RoHS ComplianceRestriction of Hazardous Substances (RoHS) isn’t just about wires, chips, switches, and circuit boards. RoHS compliance involves component-level rubber parts, too.

Companies that do business in European Union (EU) member states need to comply with RoHS, an EU directive that restricts the use of hazardous substances in electrical and electronic products and equipment. RoHS compliance won’t ensure your success in Europe, but non-compliance can have serious consequences. In addition to fines, penalties, and lost sales, businesses that violate RoHS requirements may have their products returned by customs officials.

To avoid RoHS violations, product designers and material buyers need to understand current and future EU requirements. Because RoHS is a series of directives rather than a single directive, designers and buyers need to account for the original RoHS directive (2002/95/EC), RoHS 2 (2011/65/EU), and RoHS requirements that will take effect in July 2019. As a global provider of sealing and insulation solutions, Elasto Proxy can help you to achieve and maintain RoHS compliance at the component level. Continue reading RoHS Compliance and Rubber Products