Silicone O-Ring for LED Lighting and Driver Sealing YUNZORI | Direct factory price | OEM & ODM supported | ISO 9001:2015 FDA 21 CFR 177.2600 LFGB RoHS REACH Product Overview Engineered and moulded in-house by Dongguan Yunze Silicone Products Co., Ltd., this silicone O-ring is manufactured from 100% platinum-cured silicone rubber (60°A Shore A, -40°C to +250°C / -40°F to +482°F). Designed for demanding industrial applications where heat, chemical exposure and repeated assembly