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Can FROTH-PAK be injected into an existing wall for insulation or soundproofing?

April 26, 2017existing froth-pak injected insulation soundproofing wall

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Can FROTH-PAK be injected into an existing wall for insulation or soundproofing?

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It depends. The quick cure FROTH-PAK foam expands with a lot of force and since the installer cannot see how much foam is injected the expanded foam can “blow out” the wall. FROTH-PAK Slow Rise foam should be used as it expands slower than the standard FROTH-PAK Quick Cure version. It is recommended that foam be applied from the bottom up. “Breather holes” every 12″ are recommended to reduce foam pressure. Disclaimer: The Dow Chemical Company has not done any testing to determine suitability of FROTH-PAK for this application and cannot guarantee results. Use FROTH-PAK at your own risk.