John Sayers' Recording Studio Design Forum

Do putty pads expand?
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Author:  charlottmia19 [ Wed Oct 20, 2021 9:13 pm ]
Post subject:  Do putty pads expand?

Do putty pads expand? Intumescent Putty Pads are manufactured from a red non-setting, flexible silicone based intumescent polymer. ... Under fire conditions the intumescent pad expands to fill the void left by the burnt out electrical soc :cen: ket box, preventing the spread of fire through the plasterboard wall.

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