Latest company case about Shenzhen Hanast New Material co.,LTD Certifications

Silicone rubber for cultural stone molds is a liquid silicone rubber used for molding cultural stone. A hardness 30-40 degrees higher is generally recommended. This silicone rubber is suitable for molding and replicating products such as cultural stone, artificial stone, Roman columns, European-style components, and cement. To quickly understand the working time of silicone rubber for cultural stone molds, Hongtu suggests starting with the following key factors and general ranges:

At room temperature (25℃), the working time for silicone rubber for cultural stone molds is typically 20-40 minutes. The specific time is affected by the hardener addition ratio, ambient temperature, and silicone type. For example, when the hardener addition ratio is 2% to 4%, the pouring time is generally 30-40 minutes, while the brushing time is 10-15 minutes. Working time refers to the time from when the hardener is added and stirred until the silicone begins its crosslinking reaction and stops flowing.

The normal addition ratio of hardener is 2%. If the temperature is too high or personal operating habits require adjustment, the hardener ratio can be slightly adjusted. Excessive hardener usage should not exceed 4%, otherwise the mold will become hard and brittle; insufficient hardener usage should not be less than 1.5%, otherwise some silicone will not be fully mixed with the hardener, resulting in no curing.

• Refer to Product Manual: Reputable manufacturers will provide detailed operating time, curing time, and hardener addition ratio.
• Consult Manufacturer Technical Support: Manufacturers can provide customized suggestions for specific needs.
• Small-Scale Testing: Before formal use, conduct small-scale testing to determine the optimal operating time.

The operating time may vary between different brands and models of silicone for cultured stone molds, so each case must be considered individually. HANAST cultured stone mold silicone offers adjustable operating times. Orders can be immediately customized to your product requirements. One-on-one guidance is also provided during silicone application to ensure product safety and quality.