WHAT IS (ARE) THE BEST MODEL / PATTERN MATERIAL(S) TO USE WHEN PREPARING TEKSIL MOLDS?
The best material to use for models / patterns when making a conventional heat vulcanized TEKSIL mold is definitely metal. Any metal or modeling material can be used as long as it can withstand a temperature of 375o F (190o C) plus up to several thousand pounds of pressure without distorting, melting, breaking or outgassing.