I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it stays
in place. Any suggestions for the best one for the job (or at least a
pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at the
deepest. (1 foot by 2-3 inches across and 2 inches deep.)

On Sat, 25 Nov 2017 17:43:45 +0000, GB wrote:

I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it stays
in place. Any suggestions for the best one for the job (or at least a
pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at the
deepest. (1 foot by 2-3 inches across and 2 inches deep.)

Consider doing it in 2 or more fills.

I haven't come across anything yet that doesn't shrink a bit when it is
drying/curing.

Slow and steady is probably better in the long run.

Traditional Pollyfilla still does the job well.


Cheers


Dave R


--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

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GB wrote:

I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible.

https://www.toolstation.com/shop/One+Strike+Filler/p20822

When you pick up the tub, you'll swear it's full of Helium. lightly
dampen with a spray bottle before filling, I find it doesn't shrink when
drying even when applied in a single deep filling, though you can "tamp"
it in afterwards and then re-fill with a harder filler if it needs to
withstand knocks, though presumably on a ceiling that's not very relevant.

On Sat, 25 Nov 2017 17:43:45 +0000
GB wrote:

I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it
stays in place. Any suggestions for the best one for the job (or at
least a pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at
the deepest. (1 foot by 2-3 inches across and 2 inches deep.)

One-coat plaster, preceded with a spray of dilute PVA to stop the
existing structure from sucking the water out of the plaster. Don't try
to get it perfect when you apply it, just get it pretty level and then
go back in a bit to scrape and polish it once it firms up.
I always used to use Polyfilla type stuff for this sort of job, building
up in two or three layers, but I find the one-coat mostly works better,
quicker and cheaper (of course if you have most of a bag of sitting
around unused then this last point may not apply).

On 25/11/2017 18:34, Rob Morley wrote:
On Sat, 25 Nov 2017 17:43:45 +0000
GB wrote:

I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it
stays in place. Any suggestions for the best one for the job (or at
least a pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at
the deepest. (1 foot by 2-3 inches across and 2 inches deep.)

One thing I always do (rightly or wrongly) is turn the rads off in the
room to cool it down as I believe if the room is too hot leading to
rapid drying and more shrinkage.

On 25/11/2017 18:24, Andy Burns wrote:
GB wrote:

I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible.

https://www.toolstation.com/shop/One+Strike+Filler/p20822

When you pick up the tub, you'll swear it's full of Helium.Â* lightly
dampen with a spray bottle before filling, I find it doesn't shrink when
drying even when applied in a single deep filling, though you can "tamp"
it in afterwards and then re-fill with a harder filler if it needs to
withstand knocks, though presumably on a ceiling that's not very relevant.


That looks perfect, thanks. The job is not at home, so I want something
I can apply and just leave it.

On 25/11/2017 17:43, GB wrote:
I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it stays
in place. Any suggestions for the best one for the job (or at least a
pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at the
deepest. (1 foot by 2-3 inches across and 2 inches deep.)

Bloody hell what sort of ceiling structure is this? Assuming it is
plaster, rather than concrete, I would probably look to stick in a
suitably shaped bit of plasterboard first, prior to filling with one
coat. Or perhaps fill with scrunched up chicken wire, then plaster of
paris. I'd still expect to need a "finish coat", the modern lightweight
stuff as other posters have said is very good.

On 26/11/2017 14:20, newshound wrote:
On 25/11/2017 17:43, GB wrote:
I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it stays
in place. Any suggestions for the best one for the job (or at least a
pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at the
deepest. (1 foot by 2-3 inches across and 2 inches deep.)

Bloody hell what sort of ceiling structure is this? Assuming it is
plaster, rather than concrete, I would probably look to stick in a
suitably shaped bit of plasterboard first, prior to filling with one
coat. Or perhaps fill with scrunched up chicken wire, then plaster of
paris. I'd still expect to need a "finish coat", the modern lightweight
stuff as other posters have said is very good.

It's where a new window was installed. A small chunk of masonry was
hacked out of the window reveal, and the hole was filled with plaster by
the installers. That's lasted about five years (ie long enough for the
installers to be in the clear), and the plaster fell out. Fortunately,
nobody was hurt.

I've been asked to refill it, as there's a bit of a breeze through the
hole. I may have exaggerated the size slightly, but I've bought two 1l
pots of filler, just in case I haven't!

On Sunday, November 26, 2017 at 2:37:36 PM UTC, GB wrote:
On 26/11/2017 14:20, newshound wrote:
On 25/11/2017 17:43, GB wrote:
I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it stays
in place. Any suggestions for the best one for the job (or at least a
pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at the
deepest. (1 foot by 2-3 inches across and 2 inches deep.)

Bloody hell what sort of ceiling structure is this? Assuming it is
plaster, rather than concrete, I would probably look to stick in a
suitably shaped bit of plasterboard first, prior to filling with one
coat. Or perhaps fill with scrunched up chicken wire, then plaster of
paris. I'd still expect to need a "finish coat", the modern lightweight
stuff as other posters have said is very good.

It's where a new window was installed. A small chunk of masonry was
hacked out of the window reveal, and the hole was filled with plaster by
the installers. That's lasted about five years (ie long enough for the
installers to be in the clear), and the plaster fell out. Fortunately,
nobody was hurt.

I've been asked to refill it, as there's a bit of a breeze through the
hole. I may have exaggerated the size slightly, but I've bought two 1l
pots of filler, just in case I haven't!

I've never managed a decent finish in one go. Two goes is better, but that's 2 visits I guess

stuart noble wrote:

On Sunday, November 26, 2017 at 2:37:36 PM UTC, GB wrote:
On 26/11/2017 14:20, newshound wrote:
On 25/11/2017 17:43, GB wrote:
I need to fill a pretty deep hole in the ceiling. With one fill if at
all possible. Ideally, just some filler that you bung up, and it stays
in place. Any suggestions for the best one for the job (or at least a
pretty good one), please?

It's about 30 cms long, 5-8 cms across, and probably 5 cms deep at the
deepest. (1 foot by 2-3 inches across and 2 inches deep.)

Bloody hell what sort of ceiling structure is this? Assuming it is
plaster, rather than concrete, I would probably look to stick in a
suitably shaped bit of plasterboard first, prior to filling with one
coat. Or perhaps fill with scrunched up chicken wire, then plaster of
paris. I'd still expect to need a "finish coat", the modern lightweight
stuff as other posters have said is very good.

It's where a new window was installed. A small chunk of masonry was
hacked out of the window reveal, and the hole was filled with plaster by
the installers. That's lasted about five years (ie long enough for the
installers to be in the clear), and the plaster fell out. Fortunately,
nobody was hurt.

I've been asked to refill it, as there's a bit of a breeze through the
hole. I may have exaggerated the size slightly, but I've bought two 1l
pots of filler, just in case I haven't!

I've never managed a decent finish in one go. Two goes is better, but
that's 2 visits I guess

Experience seems to dffer with the light weight stuff (I assume it is
similar to the B & Q one I used) but more than 12mm on ceiling would sag
too much for me f done in one go. And thick layers take time to harden
trhrough. So I'd definitely go for leaving at least a 6mm gap for a
second coat, preferably more than one day later.

--

Roger Hayter

I would want to stick some plasterboard in first.

On 27/11/2017 09:36, DerbyBorn wrote:
I would want to stick some plasterboard in first.


As I suggested. One option, if the OP has some stale finish plaster, is
to glue the plasterboard in place with that, and in half an hour it will
be set solid and can be finished with a couple of millimetres of
one-coat or lightweight filler. Plaster of Paris also sets pretty
quickly. I guess both stale finish and PoP may still move a bit after
they set, because of drying out.

Whatever you do, it does need to be fixed securely, and preferably with
some hidden mechanical keying, to discourage the weighty lump from
falling out eventually, as has already happened once. Lots of potential
ways to do this.

On Monday, November 27, 2017 at 3:40:27 PM UTC, newshound wrote:
On 27/11/2017 09:36, DerbyBorn wrote:
I would want to stick some plasterboard in first.


As I suggested. One option, if the OP has some stale finish plaster, is
to glue the plasterboard in place with that, and in half an hour it will
be set solid and can be finished with a couple of millimetres of
one-coat or lightweight filler. Plaster of Paris also sets pretty
quickly. I guess both stale finish and PoP may still move a bit after
they set, because of drying out.

Whatever you do, it does need to be fixed securely, and preferably with
some hidden mechanical keying, to discourage the weighty lump from
falling out eventually, as has already happened once. Lots of potential
ways to do this.

2 part Profil from Toolstation goes rock solid almost instantly. Very handy for odds and sods like this

On 27/11/2017 15:45, stuart noble wrote:
On Monday, November 27, 2017 at 3:40:27 PM UTC, newshound wrote:
On 27/11/2017 09:36, DerbyBorn wrote:
I would want to stick some plasterboard in first.


As I suggested. One option, if the OP has some stale finish plaster, is
to glue the plasterboard in place with that, and in half an hour it will
be set solid and can be finished with a couple of millimetres of
one-coat or lightweight filler. Plaster of Paris also sets pretty
quickly. I guess both stale finish and PoP may still move a bit after
they set, because of drying out.

Whatever you do, it does need to be fixed securely, and preferably with
some hidden mechanical keying, to discourage the weighty lump from
falling out eventually, as has already happened once. Lots of potential
ways to do this.

2 part Profil from Toolstation goes rock solid almost instantly. Very handy for odds and sods like this

Got a link? Couldn't find that, but this one part is supposed to set in
half an hour

https://www.toolstation.com/shop/p63284?table=no

Or good old car body filler, which gives you a few minutes of working time.

https://www.toolstation.com/search?s...=60837%2096113

although eBay is cheaper

https://www.ebay.co.uk/itm/HB-Body-L...UAAOSwI-BWMKpc

On 27/11/2017 15:56, newshound wrote:

2 part Profil from Toolstation goes rock solid almost instantly. Very
handy for odds and sods like this

Got a link? Couldn't find that, but this one part is supposed to set in
half an hour


https://www.toolstation.com/shop/Pai...+Filler/p17703


what's "almost instantly" is a matter of judgement but I'd certainly
sign up to "bloody fast"
--
Robin
reply-to address is (intended to be) valid

although eBay is cheaper

https://www.ebay.co.uk/itm/HB-Body-L...UAAOSwI-BWMKpc

Well, yes , but it deteriorates in the tin over time, and 3.5kgs would last me a very long time