Product Overview
50 Durometer Commercial Grade Solid Silicone — Technical Overview & FAQs
Product Overview
50 Durometer Commercial Grade Solid Silicone Rubber is a medium-firm silicone elastomer engineered for applications requiring a balance of flexibility, durability, and mechanical support.
At 50 Shore A, this material offers greater structural integrity than soft silicone grades (30A–40A) while retaining the elasticity and temperature stability that silicone is known for.
This grade is ideal for environmental gaskets, industrial seals, electrical enclosure barriers, and high-temperature components that demand dependable sealing under moderate compression loads.
Its inherent UV, ozone, and weathering resistance ensures long service life in both indoor and outdoor environments.
Applications
Medium-compression gaskets and environmental seals
Industrial machinery and equipment sealing
LED lighting housings and lens gaskets
Transportation, automotive, and aerospace components
Electrical and electronic enclosure sealing
Die-cut parts, strips, pads, and formed components
Key Properties
Durometer: 50 Shore A (medium firmness)
Tensile Strength: Stronger mechanical strength than softer grades
Elongation: Moderate to high; maintains flexibility under load
Compression Set: Excellent long-term sealing performance
Temperature Range: –80 °F to +450 °F (–62 °C to +232 °C)
Environmental Resistance: Outstanding resistance to UV, ozone, and weathering
Chemical Resistance: Resists water, many oils, cleaning agents, and oxidation
Electrical Performance: Good dielectric insulation properties
Available Formats: Sheets, rolls, strips, extrusions, die-cut gaskets, PSA-backed parts
Compliance: RoHS | REACH
FAQs
What is 50 Durometer Solid Silicone typically used for?
It is used for medium-compression sealing, environmental gaskets, industrial equipment seals, and electrical enclosure components where strength and durability are required.
How firm is 50 durometer silicone compared to other grades?
50A silicone is a true medium-firm rubber—firmer than 30–40A grades but more flexible than 60–70A grades.
It provides structural stability, good sealing pressure, and long-term mechanical support.
Is 50 durometer silicone suitable for outdoor or harsh conditions?
Yes — silicone rubber naturally resists UV, ozone, moisture, and weathering, making it ideal for outdoor and long-duration applications.
How does this material perform under high temperatures?
It remains flexible and reliable from –80 °F to +450 °F, making it suitable for high-temperature machinery, electronics, and lighting systems.
Can this material be die-cut or manufactured with adhesive backing?
Absolutely — H-O Products supplies die-cut gaskets, PSA-backed tapes, strips, pads, and custom-fabricated silicone components for OEM integration.
Contact H-O Products today for 50 Durometer Commercial Grade Solid Silicone samples, technical data, or custom-engineered gasket solutions - contact us.
