Re: foam

["J Barnes" <trishnjames@xxxxxxxxxxx>]

We now use 3/4 contacts on all windows and doors because of the foam
problem.  It is much easier to dig the foam out of a 3/4 hole then a 3/8.

James


"Robert L Bass" <sales@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1164768675.062309.63660@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> I've been on many service calls with sprayfoam
>> & 3/8 recessed contacts on all the windows & doors...
>
> If you know they're going to use foam insulation, install 3/4"
> contacts.  Strip back about 10-12" of the outer jacket from the cable
> and coil up the inner conductors in the 3/4" hole beneath the contact.
> There will be enough space in the hole to pull the wires out.  If any
> foam comes in contact with the wires, use a long pair of tweezers or a
> needle nose to gently work them loose.  Although acetone will melt foam
> insulation, it can also damage the PVC insulation (it's used as a
> solvent to melt PVC).
>
> Side note: Although I haven't tried it, one fellow I know says he puts
> a bit of cable pulling greases on the wire to keep the foam from
> sticking.  The stuff doesn't hurt PVC so it probably works but I'd test
> it before relying on it.
>
> Regards,
> Robert L Bass
>
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