Mike wrote:
> Interesting stuff.
>
> What keeps it from simply expanding out of the hole? Gotta be less
> resistance there.
>
>
It hardens and expands unlike many building foams. OTOH ever use the
yellow foam around a door or window. If you haven't, don't <:-)) It may
expand out of the crack like crazy, but if the door or window was
fitting properly before, it's not going to open or close easily if at
all. I mistakenly filled to space between the rough opening and the
door frame for the man door in our garage. The door wouldn't budge
until I dug out the foam. OTOH the white, soft foam works great in those
spots.
"I think" the stuff for cracking concrete is like an epoxy that hardens
and then expands, or at least expands a lot after hardening. I noticed
in the one demonstration that none of it appeared to come up in the holes.
73
Roger (K8RI)
> 73, Mike NF4L
>
> Kevin Normoyle wrote:
>
>> NA5U Shack wrote:
>>
>>
>>> I need to remove my concrete tower base. I have heard there is a compound
>>> that can be put into holes that have drilled in the concret that will
>>> expand break it apart. Does anyone know what the solution is and where to
>>> find it.
>>> Regards,
>>> Mike, NA5U
>>> __________________________
>>>
>>>
>> Betonamit is one brand
>> http://www.crowdersupply.com/betonamit.htm
>> http://www.crowdersupply.com/Betonamit-MSDS.pdf
>>
>> Dexpan is another
>> http://www.youtube.com/watch?v=Yfi0_5HIrmo&NR=1
>> http://www.archerusa.com/index.html
>>
>> Sylentmite is another
>> http://www.sylentmite.com/
>>
>> other names
>> Crack Dexpan, Crack Ag, Crackamite, Split Ag, Bristar, Bustar by Cras,
>> Da-Mite, Nonex, S-mite, Fract Ag, Rockfrac
>>
>> -kevin
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>>
>>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|