FREQUENTLY ASKED QUESTIONS

Bymer Elastomers manufactures five main product categories: custom molded rubber components (by compression, transfer, and injection molding); rubber-to-metal bonded products; extruded rubber profiles; low-pressure industrial hoses; and custom rubber compounds. Products are manufactured for automotive OEMs, Tier-1, Tier-2, industrial equipment manufacturers, electrical system integrators, and engineering companies across domestic and international markets.

Bymer formulates and manufactures compounds in Natural Rubber (NR), Nitrile (NBR), Chloroprene (CR), EPDM, Silicone (VMQ), FKM/Viton, Polyacrylate (ACM), Ethylene Acrylic (AEM), HNBR, Butyl (IIR), and Epichlorohydrin (ECO). Material selection is based on the application's operating temperature, fluid exposure, mechanical requirements, and regulatory constraints—not substituted from general-purpose grades.

Yes. Our manufacturing infrastructure supports prototype and development programs, specialized small-volume production runs, and scalable high-volume manufacturing programs. We work with customers at every lifecycle stage — from initial compound development through long-term series production supply.

Bymer Elastomers is an IATF 16949:2016, ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certified precision manufacturer of rubber and elastomer products based in Nashik, Maharashtra, India. Established in 1978, the company manufactures custom molded rubber components, rubber-to-metal bonded products, extruded rubber profiles, industrial hoses, and custom elastomer compounds for OEMs, Tier 1 and Tier 2 suppliers, automotive manufacturers, industrial equipment manufacturers, electrical and switchgear companies, and engineering companies across India and international markets.

Bymer Elastomers operates two manufacturing facilities in Nashik, Maharashtra, India — with a combined manufacturing area of 45,000 sq. ft. Nashik is an established industrial manufacturing centre in Maharashtra. The company was founded in 1978 and supplies customers across India and international markets from its Nashik manufacturing base.

Yes. Bymer Elastomers is certified to IATF 16949:2016—the international quality management system standard for automotive production and service parts suppliers. Bymer also holds ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 certifications. IATF 16949 confirms that Bymer's manufacturing processes, documentation, and quality controls meet automotive OEM supply chain requirements globally.

EPDM (Ethylene Propylene Diene Monomer) offers excellent resistance to ozone, weathering, steam, and hot water — but is not compatible with petroleum oils or fuels. NBR (Nitrile Butadiene Rubber) provides excellent resistance to petroleum oils, fuels, and hydraulic fluids — but degrades under ozone and outdoor weathering. EPDM is used in automotive weatherseals, cooling hoses, and outdoor infrastructure. NBR is used in engine oil seals, fuel system components, and hydraulic seals.

Silicone rubber (VMQ) is the primary material for EV busbar seals due to its wide operating temperature range (−60°C to +200°C), high dielectric strength, high volume resistivity, long service life, and compatibility with thermal management fluids in EV battery systems. EPDM is an alternative for lower-voltage applications at moderate operating temperatures.

Rubber-to-metal bonding is a manufacturing process where rubber compound is chemically bonded to a metal insert during vulcanization in a mold. Metal inserts are surface-treated and coated with bonding adhesive before being positioned in the mold. Under heat and pressure, the rubber vulcanizes and simultaneously forms a chemical bond with the metal. The result is a structural composite combining the load-bearing rigidity of metal with the vibration-isolating, elastic, or sealing properties of rubber. Engine mounts, suspension bushings, and industrial vibration isolators are common applications.

In compression molding, a preformed rubber charge is placed in an open mold cavity, which is then closed and heated to vulcanize the rubber. In injection molding, heated compound is injected under pressure into closed mold cavities. Injection molding produces tighter dimensional tolerances, minimal flash, shorter cycle times, and better cavity-to-cavity consistency — but requires higher tooling investment. Compression molding is more economical for lower volumes and simpler geometries. Transfer molding sits between the two in precision and complexity.

Bymer Elastomers operates compression molding, transfer molding, injection molding, rubber extrusion, rubber-to-metal bonding, industrial hose production, and in-house elastomer compound development and mixing — all within IATF 16949:2016 certified manufacturing systems at two facilities in Nashik, India, with a combined area of 45,000 sq. ft.

IATF 16949:2016 is the international QMS standard for automotive production and service parts suppliers. For a rubber manufacturer, it confirms documented process controls, production planning, non-conformance management, traceability systems, and continuous improvement programs meeting automotive OEM requirements. It is required or strongly preferred by most automotive OEM procurement teams globally and provides deeper manufacturing system assurance than ISO 9001 alone.

Bymer Elastomers conducts in-house testing covering rheological analysis, Mooney viscosity testing, tensile strength and elongation testing, Shore A hardness testing, compression set testing, accelerated heat aging testing, ozone resistance testing, low-temperature performance testing (up to −60°C), abrasion resistance testing, specific gravity testing, and electrical properties testing.

Compression set is the permanent deformation a rubber component retains after being compressed under a defined load, temperature, and time. Expressed as a percentage of the original deflection not recovered after load removal. For sealing applications, low compression set is critical — a seal with high compression set loses contact force over time, leading to leakage. Compression set testing (ASTM D 2000 and as per customer specification) validates long-term sealing performance of compounds for static and dynamic seal applications.