Sticky Tack vs Poster Strips

"How much weight can sticky tack hold" is one of the most-asked questions in damage-free hanging, and the answer is harder to find than it should be. Most brands that sell mounting putty publish no weight figure at all.

Of the five products on this page, exactly two put a number on it: Gorilla says up to 2 lb. Duck says up to 1 lb. Loctite's Fun-Tak -- the blue strip most people picture when they say sticky tack -- publishes none. Neither does Scotch. Command's poster strips publish a poster count rather than a weight.

So the useful comparison is not putty versus strips on strength, because only one side has numbers. It is this: putty is rated for surfaces that adhesive will not touch, and strips hold flat where putty sags. That decides it more often than a pound figure would.

The short answer, with the numbers that exist

Treat putty as a one-pound product. Gorilla publishes 2 lb and Duck publishes 1 lb for what are, functionally, the same thing. When two makers of the same product disagree by a factor of two, the lower number is the one to plan around -- particularly since neither publishes the conditions behind it, the way the adhesive makers publish theirs in the published weight limits table.

In practice that covers paper posters, unframed prints, postcards, photos and light card. It does not cover anything with glass in it, and it does not cover a frame -- for those, the figures worth reading are the adhesive strip ratings, which run to 20 lb for a set and are published with their conditions attached.

How these are ranked

A published figure counts first: a maker willing to print a number has taken a position, and two here have. Then published surfaces, because that is what decides whether the product works on your wall at all. Then what it leaves behind, which in a rental is the whole point. Then reusability and price. The full method is here.

The surface split, and why it matters in a dorm

This is the real reason to keep putty in a drawer. Read the two surface lists side by side and one difference jumps out: Loctite and Duck both name brick and cinderblock.

The adhesive range is much more restricted. Command's own guidance across its products names smooth surfaces -- painted walls, finished wood, laminate, glass, metal, tile, and painted cinder block on some lines -- and explicitly rules out textured walls, wallpaper, rough surfaces and bare brick. That is set out in full in what surfaces hold an adhesive hook.

Which means: in a dorm room with painted block walls, or an apartment with an exposed brick wall, putty is rated where most adhesive is not. It is the only damage-free product on this site whose published surface list includes bare brick. For a student hanging paper posters on block, that settles it -- the dorm playbook has the rest of that room.

Where strips win: flat

Putty holds a poster at the points you put it. Between those points the paper bows, the corners curl, and in a warm room the whole sheet creeps downward over a few weeks because putty is tacky rather than structural -- it flows slowly under load.

Adhesive poster strips hold the sheet against the wall along their length, so the poster sits flat and stays where it was put. The trade is that they are single-use, they need the surface cleaned with rubbing alcohol first, and they carry conditions: the listing states an indoor temperature between 50F and 105F, seven days after painting, and not for hanging valuable items.

The honest split: putty for things you will move, strips for things that should look properly hung. A poster you rotate every term is a putty job. A print you want flat for a year is a strips job.

Getting it off without taking the wall

Both products fail the same way at removal, and both failures are avoidable.

Putty: do not pull it straight off. Warm it between your fingers, then roll or twist it away from one corner so it releases progressively. Putty that has sat for a year on flat matte paint can leave a slight sheen where the oil in it has soaked in -- which is an argument for the neutral and white putties here over the blue one on a white rental wall.

Strips: pull the tab slowly straight down the wall, never outward. The full procedure, and the five recoveries for when it goes wrong, are in how to remove adhesive hooks without taking paint.

What we would skip

Museum putty, for posters. It sits on the same shelf and it is a different product: the maker describes it as securing vases, figurines and frames on shelves and furniture to stop them sliding and tipping. It is genuinely good at that -- it is on this page ranked last so you buy it deliberately rather than by accident.

Putty on wallpaper. Duck excludes flocked and loose wallpaper outright. On any papered wall the risk is not that the poster falls; it is that the paper comes with it.

Either product for anything with glass in it. Every published figure in this category tops out at 2 lb. A small framed print is already heavier. That job belongs to damage-free picture hooks, where the published figures run from 5 lb to 20 lb and come with a stated method.

Where this sits in the damage-free range

Putty is the bottom rung of a ladder this site has already mapped. Above it, adhesive hooks publish 0.5 lb to 7.5 lb with conditions; picture hanging strips publish 15 lb to 20 lb for a set on flat-backed objects; and on a steel surface, magnetic hooks publish far more than any of them. Every rung has a published number except this one.

That is not a reason to avoid putty. It is a reason to use it for what it is: the cheapest, most reversible, most surface-tolerant way to put paper on a wall you do not own.