UnibondNo More Nails Permanent Strips, Adhesive Strips for Fast & Easy Mounting, Double Sided Sticky Tape for Interior & Exterior Use, Waterproof Tape, Pack of 10

First of all, the negative reviewers clearly didn't read the instructions on the back of the box. You need to clean the surface of what you're mounting onto, as well as the item you're mounting, as to get rid of any dust, water, or oils that will mess with the glue. Then once you've mounted the item, you need to hold it against the wall firmly, if it's a heavy item you should press it hard against the wall for a good 3-4 minutes.I have personally used them to mount a 2kg ethernet switch plus a 1kg 8-plug UK extension lead onto an indoors concrete painted wall. They were still stuck to the wall 4 months later when I had to move.While trying to unmount them, it took me a good 10 minutes involving a strong flat knife (which was bent in the process) to get them back off the wall. The funny part is that the strips themselves didn't actually budge, instead I had completely ripped the paint off of the wall!If you actually follow the instructions instead of just instantly applying them and slapping it onto your wall, then you'll experience an extremely strong adhesive.I've also happily mounted two Google Nest smoke alarms (which weigh around 1kg each) using just 2 permanent strips for each. One mounted on the ceiling, the other against a wall. Several months later, both are still perfectly in place with no signs of detachment.Note: I'm talking about the Unibond PERMANENT strips (with the red plastic on them), not the Unibond yellow ones. I'm thinking some of the reviewers might be confusing this product with the yellow non-permanent ones, which only work for extremely light items (think no heavier than a standard TV remote).Now, if the instructions on the back of the packet aren't clear enough, here's my own step by step instructions and tips for getting a "permanent" stick:================================1. These strips work best on a flat, smooth surface, such as a concrete wall. Be warned that there's no real method to remove them (note the word "PERMANENT" in their name) unlike certain other strips - if you're mounting something onto a wallpapered wall, they will very likely tear the wallpaper off if you try to remove the item, or if the item is too heavy.2. When using these strips, first make sure the two surfaces (i.e. the wall, and the thing you're mounting) are clean and dry. Surfaces can accumulate dust, lint, and oil from your household, and this can prevent the adhesive working properly.Suggested cleaning methods:- (easiest) lens cleaning wipes - ideally ones containing alcohol. those of you who wear glasses may find this the most convenient method.- 99% isopropyl alcohol (https://www.amazon.co.uk/gp/product/B003D8SDSW) - one of the best options as it's generally safe for most surfaces, shouldn't cause any damage to electronics as long as they're turned off, and generally evaporates within a few seconds of application without leaving any residue. if you don't have any, buy some! it's extremely useful for cleaning electronics without the risk of water damage.- methylated spirit - not exactly common in most households, but is recommended by unibond. be warned that methylated spirit is highly toxic and can damage certain materials.NOTE: when using liquids to clean the surfaces, use a fresh microfibre, or lint free cloth (e.g. AF Safecloths https://www.amazon.co.uk/gp/product/B001J8F7OQ/). other cleaning cloths can leave small amounts of lint or oil that can prevent the adhesive working properly3. After you've cleaned and dried the surfaces, you should apply multiple strips onto your item and evenly distribute them depending on the size and weight of your item. General rule of thumb - the more strips you use, the more likely the item will stay mounted. Avoid pressing too hard when applying them to your item, or you'll have trouble removing the red tape once you're ready to mount it.- For small items (no wider than a normal sized mug) that weighs less than 1kg, you may be able to mount them with just a single strip in the center. (e.g. small smoke alarms)- For square(-ish) items such as routers, you should ideally place one strip in each corner of the item, plus one strip in the center - this ensures the weight is evenly distributed.- If the item is around the size of (or larger) than a sheet of A4 paper, and weighs at least 1kg, then you should place at least 3 or 4 strips across each edge of the item (similar to mounting a poster with blu-tack), as well as 1 or 2 strips in the center (to prevent too much weight going to the bottom strips).4. Remove the red tape from each strip, and then carefully press your item onto the area you'd like to mount it. Once you've positioned it correctly, firmly press your item against the wall, making sure to apply pressure to the points with strips behind them.Keep the item firmly held against the wall for at least 2-3 minutes (if the item is large/heavy, more time is better), and apply a lot of pressure as the adhesive seems to be pressure-activated - the more pressure you apply, the stronger it will stick.5. After enough time has passed, slowly release the item.- Upon releasing the item, watch it for a few minutes to ensure that it's staying put. If the item starts to come loose from the wall, re-apply pressure to it immediately. You may have needed to press it harder and/or for a longer period of time.- For best results, re-apply firm pressure for several minutes after a few hours have passed, this helps to ensure the adhesive has good contact with the surfaces, and will sustain good contact after it settles.- If the item is heavy and has a lot of frontal weight (e.g. a shelf or cabinet), you should place something underneath it that can support it's weight, as the adhesive may need up to 24 hours to settle enough to support it.================================If you follow my instructions and consider my tips, then it's likely whatever you mount using these strips will be stuck there for good.DISCLAIMER: This is a 100% honest review based on my own experience. I have not been sponsored by Unibond, Amazon, nor any of the product's I've linked in this review.

Bad quality and poor value for money

Why did they make it so hard to get the backing tape off?? This proved really fiddly. I ended up using a Stanley knife and would recommend you use something similar as you need a a really thin, flat object to get the backing tape off and away from the pad without ripping the pad back off. I guess this is what you get with this level of stickiness! They adhere really well and take only a couple of seconds to fully 'cure'. Time will tell on the adhesive power of these, but so far, so good! Just a bit of a faff.

AVOID! Impossible to remove red backing strips. They are literally fused on. Rendered these completely unusable. Would give zero stars if that were possible.

Great item

Purchased to attach (without drilling/screwing) 2 x outdoor metal solar wall lights to neighbours brick boundary wall. After attaching 4 x strips to each base plate unit, 1 x remained in situ for a full week until today, whilst I have had to continuing constantly reattach the other on a daily basis. So I would say that they may not really be suitable for brickwork.

Umm yeah, be careful what you wish for…. This stuff is mega. I fitted a Ring doorbell (battery version) for my in-laws; they wanted it semi-permanent fitting to the front door (no drilling) at roughly peep-hole level. So I peeled all the soft foam off the back of the mounting bracket and replaced it with this no more nails product. Well blow me, I cleaned all surfaces with isopropyl alcohol (you can use methyl spirits) to degrease everything properly. Aimed the bracket and plop, stuck it to the front door. Levelled with spirit bubble, all good. I secured it to the door with some masking tape just to help adhesion and by goodness there is no moving this bracket at all. God knows how I’m ever to get it off should they ever need to 😬 the strength, quality and all around holding power is immense! I cannot believe how quick it was to grab hold and not let go! Highly recommended. Just remember…… "with great power comes great responsibility"…… I would definitely use with caution, in a good way

Brilliant stuff. Strong and does the job