BiostripPLUS, Masonry Paint Stripper, Maximum strength 2.5 Litres

We used it to try and remove Ronseal diamond grey garage floor paint that was put down years ago. Some of the paint had been removed over the years for it flaked and became an eye sore. We put down the stuff, covered it with cling film for at least 6 hours plus then power washed it off. The second photo is after the third application and power wash, the third photo is after the 1st application and power washing. It is good and does remove this water based acrylic paint but some is stubborn and may never come away however I’m glad I purchased this and used it for it definitely removed a lot of years old floor paint on concrete. We will shortly be putting on a fourth application and then washing that off but paint removal from concrete is not easy but this has definitely made a difference. Would recommend for this purpose.Update the first photo is after a fourth application in stubborn areas and power wash. Pleased with result I will not be treating anymore, will just coat with Thompsons concrete sealer.

We have a 0.5m high retaining wall to level a section of our garden- block and render. It was badly painted by the previous owners and part flaking off due to the incorrect type of paint being used. I used this product as directed and it definitely worked, albeit not to the point where it was bubbling/coming off of it's own accord. A scraper removed some, albeit what really got the paint shifted was application followed by the jet washer. It took a bit of persistence, but would not have wanted to do this job without the combination of the two. If I was just scraping it off it would have taken reapplication and hours of scraping. Overall a good product, and I was after something that wasn't overly chemical/toxic with two kids and a dog. With respect to this point, it of course whiffs a bit but is quite easy to work with- obviously suitable precautions still taken.

I’m sorry to say I paid attention to instructions and it did not remove any paint it just turned every black very disappointing .

So I bought this, to strip paint from a Victorian window cill, which on its top coat had a matt finish.It will only remove 1 layer of gloss per time, if you have like my Victorian window cill, maybe 10-15 coats of gloss on top of eachother, you have repeat the process below, 10-15 times.1. Apply the stripper2. 45 mins or so later, maybe longer, strip off with a tool3. Clean the surface with warm water and for it to dry through4. Do a light sanding with some silicon carbide paper, then repeat the aboveIts really time consuming, and I would prefer something more powerful to really lift off as many coats of old gloss in one go, so for me, this product is not great its basic, but as Ive not tried any others, I cant comment on comparability. So Im about 1/3 used of the 2.5 litre container, but still have maybe 5 more coats of gloss to go.Ive ordered an orbital sander now, after googling I heard this is an effective way of stripping old paint from masonry, but I cant let you know just yet if its any better.I hope you find my review useful, from my side its fair, I cant sadly say this product is anything more than basic for it does, there is no wow factor for my use, where I could label this as something special.The pics, one shows the masonry finally revealing itself, tht has had about 10 repeats of the above processThe other one has had about 6, and as you can see there is a beige gloss revealing itself beneath the white, this continues about 10-15 layers deep.

I'm sure the product works to remove some paints from some surfaces but (after several coats) it failed for me. Having to get a professional in instead.

I ordered 5lrs as I didn’t expect much, thought I might need more than it said. I applied per instructions in a thick coat and let it work it’s magic, it didn’t bubble up as I thought it would do but I could see the paint changing colour so I knew it was working.After about 1 hr on the stone work I decided to give it a scrap and see if the paint would come off, as the stone wall was uneven the scraping technique didn’t work so I used a wire brush.The wire brush technique mixed the remover and paint together creating a white sticky rubbery substance. The next stage was to get it all off the stone work, I decided that it was a big area and a sponge and soapy water as described by the label was not going to work so I proceeded with a power washer. This worked well and started removing all the sticky stuff . Little did I no, but I ended up with a semi clean wall but a messy window , fence, slabs and the neighbours slabs too , coved in a sticky white paint substance. I soon washed the area but i was covered in it !I would definitely recommend using Google’s and a face mask as it is very strong in smell and would probably burn your eyes out. And I would definitely recommend polythene the whole area to keep the mess to a minimum.I will need to re coat the wall again to get rid of the areas west the paint was thicker. But I still have another 2.5 Ltr to use so all is good.Would 100% recommend using this product, it removes stubborn paint from masonry work like it says .

Doesn't work as described as per instructions but did work eventually. Left to work on wall for a day then used a jet wash.

Needed to remove (a lot) of masonry paint from stone wall on my house. I didn't want to use anything too abrasive. This paint remover doesn't look or smell like it will do anything - I painted it on quite thick and left it on overnight. The next day it looked like it had dried on but the pressure washer removed most of the paint. - well about 75%. Another light coat left on for 4 hrs removed more spots. Im still not done but another coat will remove the remaining parts - would recommend this.