Unleash Superior Rebound Performance with IOTA-HTV 318 Series – Engineered for Premium Elasticity
In the competitive world of high-end silicone products, rebound resilience and processing stability define market leaders. The IOTA-HTV 318 Series (including grades 31830 to 31870) is a fumed silica-reinforced high-consistency rubber (HCR) specifically formulated to deliver exceptional spring-back performance, making it the ideal choice for premium seals, heat-resistant placemats, sports cushions, and other demanding resilient components.
What sets this series apart? Its outstanding rebound rates—ranging from 60% down to 50% across hardness grades—ensure that finished products maintain their shape and cushioning even after repeated compression cycles. Whether you need soft flexibility (30 Shore A) or firm support (70 Shore A), the 318 series offers a precise hardness match without compromising elastic recovery. Beyond rebound, it exhibits excellent processing fluidity, allowing smooth extrusion, calendering, or molding with minimal die swell or surface defects.
Certified to meet ROHS, REACH, and LFGB standards, this material guarantees safety for food-contact applications while complying with global environmental regulations. Typical cured properties (tested with 1.0% peroxide at 175°C for 5 minutes) include tensile strengths up to 9 MPa, tear strengths up to 20 kN/m, and elongations from 550% to 200%, balancing toughness with elasticity. With a translucent appearance and consistent plasticity values (140–260), it integrates seamlessly into existing production lines.
Packaged in convenient 20 kg cartons and stable for 18 months when stored below 50°C, the IOTA-HTV 318 Series reduces inventory risks while ensuring batch-to-batch reliability. Upgrade your product line with a silicone that combines high rebound, regulatory peace of mind, and processing ease—contact our technical team today to request samples and tailor grades to your exact application needs.