The Polyurethane Expanding Foam system of 9703 (PART A) / 9704 (PART B) has been formulated to produce a free rise core density of 3.0 pcf.
While designed for the marine industry, this foam can be used for sculpting or casting applications in a limited capacity.
Per the manufacturer, the thinnest pour of correctly mixed chemicals to get a good foam reaction is 1” of material; on the thickest side, it is not recommended to exceed 6” of material. Anything within that range should provide a good reaction of the two components if they are properly mixed in the correct ratio using the right mixer and speed (1800 – 2000 RPM).
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