On 03/06/10 14:10, Andrew Mawson wrote:


I'm a recent convert to the epoxy or polyester resin anchors. I had a
piece of machinery (*) that repeatedly pulled out of a concrete floor
despite very sizable expanding anchors - problem totally solved by a
tube of polyester anchor fixing and a length of ordinary studding, and
existing hole size was easily accomodated.

AOLMe too/AOL

I have my bathroom basin and bog cistern hanging on SS studding resin'd
into the very weak "therma****e" wall. Gives me complete confidence in
them not falling off... So easy and relatively inexpensive these days.
If you improvise with the dust blowing you need one mastic gun to suit
the cartridges and one bit of tube to blow or hoover from the back of
the hole (very important).

I've also used it to put studs in when adding a vertical column half a
brick wide (bricks on end for convenience, stud in every mortar joint)
and for repairing the house foundation strip (5 heavy studs at random
angles in the edge of the old strip before fitting the hole with string
concrete).

I Have used the fancy studs, but as Andrew says, ordinary studding
(steel or SS) works just as well.

If alignment of studs is critical, I have perviously made up a wood
locator for one job (angle and height of studs critical for porcelain
bog cistern, and the studs were neither level or perpedicular, by
design!!). 2x4" screwed to wall, drill right through into the wall using
the item to be fixed as the template, remove wood, enlarge hole in wall,
clear hole, inject resin, refix wood, shove studs in. Remove wood when
firm but not fully set (or the wood may end up stuck!), pare off excess
resin, perfect job.

Would have actually been harder to use screws/plugs and guarantee a mm
critical fit (if the holes are a bit off, the stud can move a bit in the
resin).

--
Tim Watts

Hung parliament? Rather have a hanged parliament.