Import Addition Molding Silicone — Buy in Bulk from Supplier in China

Addition molding silicone from Hong Kong Hong Ye Jie Technology Co., Ltd. is a two-part, platinum-catalysed silicone designed for producing highly detailed molds and precision parts. The material captures fine surface textures down to sub-millimetre resolution, making it suitable for concrete stone reproduction, PU mold making, and intricate design applications. Its Shore A hardness typically falls in the 20 to 40 range, providing flexibility for demolding without tearing, while its tear resistance exceeds 20 N/mm for industrial durability.

The silicone uses a 1:1 mix ratio by weight or volume, with a working time of 15 to 25 minutes at 25°C and a full cure in 24 hours at room temperature. It is formulated for low shrinkage, usually under 0.1%, to maintain dimensional accuracy in repeated casts. As an addition-cure system, it does not release by-products during curing, which reduces the risk of bubbles or voids in the final mold. Standard industry grades for such silicones include food-safe variants for indirect contact, though buyers should confirm compliance for their specific application.

This material is widely adopted in construction for decorative concrete molds, in automotive prototyping for short-run parts, and in art studios for sculptural reproductions. It is supplied in 20 kg or 200 kg pails, with packaging tailored to protect against moisture and contamination during transit. Buyers typically request FOB Shenzhen terms, with lead times of 10 to 15 days after order confirmation. Its chemical stability allows storage for up to 12 months in unopened containers at temperatures below 27°C.

Hong Kong Hong Ye Jie Technology Co., Ltd. operates from Building A, No.3, Hongling First Road in Shenzhen, Guangdong, China. The company is classified as an imported-tier supplier with a harbor trust tier, indicating it meets baseline verification standards for export capability. Its address places it in a key manufacturing hub for silicone materials, with proximity to major ports for international shipping.

The supplier’s profile does not list active response metrics, so buyers are advised to contact them directly for technical data sheets or custom formulation requests. The company specialises in silicone products for industrial molding applications, with its addition molding silicone positioned for precision uses. No additional certifications, client lists, or production capacity figures are provided in the available data.