Toupret Fill‑Flex - Flexible & Crack‑Resistant Interior Filler for Tough Surfaces - Elastic Compound for Cracks, Movements & Control Joints - Easy Sand, Paintable - 1 kg

Used to fill crack in ceiling occurring over joist. Didn’t bother with tape. Used this to fill gaps. Smoothed over with the ready made plaster by same company. Time will tell, these polymers weren’t available 20 yrs ago. Sold as good flexibility. Is very difficult to sand down so remove access before it drys

Seems good. Easy to put on, easy to flatten.

First thing I would say is - smooth, smooth, smooth - as much as you can, before it dries! Used thinly it goes elasticky and peels off, used thickly it dries hard as rock and my orbital sander struggled to make much impact smoothing it off. I wanted to fix a ceiling crack which a painter and decorator had already 'fixed' twice but kept returning. I cut down some wall repair patches (the ones with the stainless steel mesh) and used this filler to fill/adhere the long crack. I had pre-scraped it so I could use a decent amount of product and not apply it too thinly. I usually over-fill as it's pretty easy to sand repairs to a nice level finish, but this is very challenging to sand so take a bit of care over smoothing it before it dries if you can. I also used a bit of this sparingly on a smaller area and on that one it went like chewing gum when sanding so I peeled it off and reached for the normal filler. It seems to be holding on the ceiling repair so I do think this works, for the right job. It's not for the faint hearted - but I needed something that would hold on a long crack in a bathroom that gets steamy. Overpainted with zinsser mould-resistant paint it looks decent - fingers crossed it stays that way.

Our Victorian flat has hairline cracks everywhere. I've had to get quite handy at filling. I spent a long time filling some cracks with regular filler and was pretty annoyed when they opened back up 6 months later. I opened up the cracks again, and refilled with this stuff. The repair has held for a year. I'm keeping my fingers crossed and will only be using this for similar cracks in the future. As per other reviews, this is harder to work with than other filler. It is similar to caulk to apply. Unlike other reviews, I found that it actually sands well if you leave it a week to go off and cure and then come back to it with an orbital or rotary sander. You can then paint over for an invisible repair. Great stuff.

Put it on as thin as possible. As others have commented, it is not the easiest to sand once dry. I would suggest leaving it 2 days minimum before sanding as it does take an age to set. And if you do try sanding before its properly set it just balls up under the sander or just peels up. Nether is ideal. However having said that, it has remained fairly flexible, and has stuck where I needed it to. And with time and care on the sander, it has given a good finish. In future I will chose a different product, this one was just too troublesome for a result I could have got with and easier-to-use product.

Very good filler, easy to work with, fill the gap to a depth ,which allows you to finish of with a normal filler, this allows you to sand to a smooth finish.

Horrible stuff!. I filled cracks less the 1cm and let it go off for 24hrs as it says on the tin. I started sanding and it started peeling off like silk does. Set my job back and had to re-fill with other filler rather then this rubbish. Don’t use unless you want to waste your time refilling. Also started rolling it and it came straight out of the cracks and mixed in with the roller leaving bits everywhere.

Did the job and filled the crack before the top coat filler was applied. Hopefully it does not come back! Time will tell.

Très, très cher et a mis du temps à arriver. Les dates de livraison promises n'ont pas été respectées