Low Humidity Compensation with Monster Makers Foam Latex

Hi all,

Can someone tell me how to compensate for low humidity when using Monster Makers' foam latex?  As I'm reading online, all I can see is that if you're in a high humidity environment, to use less gelling agent (if I'm remembering the instruction correctly).  The instructions from Monster Makers indicate they're assuming a 50% humidity level.  I'm in northern Nevada, where today the humidity is 9%, which is pretty typical for this area.

All the info I've found says that humidity has to be taken into account, especially with the gelling agent, but I can't find anything that tells me exactly how to compensate for the really low humidity I work/live in.  I've had some trouble with the foam collapsing, and while I'm not 100% sure that humidity is the issue, I figured I'd start there.  Thanks.

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Foam is a black art.  Here in southeast Michigan the humidity ranges from 30 in winter to yougottabekiddingme in summer.  I always use slightly less than recommended.

If you have enough kit materials, you might whip up a test batch.  Divide it into 2 to 4 parts just before you add gel, then add different gel amounts separately to each partial batch and see how fast each sets up.  This will only be a rough estimate based on how accurately you can cut a batch into smaller parts plus how accurate you are at measuring gel amounts of 5 grams or less.  But it might give you some clues.

Thanks, Dave, I appreciate the suggestion.  That's a great idea to divide it.  I did discover that our thin air does require me to whip it longer.  Fortunately I bought an inexpensive gram scale at Harbor Freight which seems to work great in measuring.  Thanks again.

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