Is this product suitable for pewter casting?

Hi, It can be used for casting pewter.

Is this suitable for making linings for cold processed soap making- some soaps get very hot during curing? Is there another silicone more suitable?

This material will withstand 200 deg. C. I would be very surprised if soap making would achieve this temperature. Other than this comment I have no experience in soap making.

What is maximum temerature suitable,and can it be used wilt molten metal?

Used it for mouldy to do some pewter casting and it worked very well. Mould was used a number of times with no degradation. White metal should work just as well. Dust the mould with graphite before use and it will help the metal flow

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🔥 Mold your masterpiece without melting your patience!

ROOM TEMP MAGIC - Cures perfectly at room temperature, no special equipment required.
HEATPROOF MASTERY - Handles extreme heat so your art stays flawless.
PRECISION PERFECT - Captures every fine detail for museum-quality moulds.
EFFORTLESS CRAFTING - Mix and pour with ease—no stress, just creativity.
VERSATILE PERFORMANCE - Wide temperature range fits all your casting needs.

Polycraft HT-3120 is a 550g kit of high-temperature RTV silicone rubber with Shore A 60 hardness, designed for precise moulding of figurines and art objects. It cures at room temperature, withstands heat up to 300°C, and offers easy mixing and pouring for professional-grade results.

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