Post-it FAQs: Answering Your Most Common (and Uncommon) Questions

Post-it FAQs: Seven Questions You Didn't Know You Had

I review Post-it products day in and day out—sticky notes, labeling tapes, easel pads, you name it. Over the years, I've heard a lot of questions from customers. Some are expected. Some... not so much. Here are the ones I actually get asked, answered from my quality manager perspective.

1. Is a post-bacc worth it for medical school?

Okay, I'm not an academic advisor, but I did get this question from a customer who was also a pre-med student buying Post-it flags in bulk. Here's the thing: I can't tell you whether a post-bacc program is worth the money (that gets into education counseling territory). What I can say is that if you're organizing medical school application materials, our Durable Filing Tabs and removable labeling tape are a lifesaver. I've seen students color-code prerequisites, volunteer hours, and recommendation letters on a single whiteboard. Post-it products won't get you into med school, but they'll help you stay sane while you try.

2. Why does my Post-it dispenser refill get stuck?

I still kick myself for not catching an early batch issue in 2023. If I'd run a humidity test, we'd have spotted the curl problem sooner. Normal tolerance for refill pop-up dispensers is a < 2mm curl over 100 sheets. We rejected a shipment of 12,000 refills because 8% had 4mm curl—the vendor fixed it at their cost. If yours is sticking, three things to check: humidity in your office (over 60% RH can soften the adhesive), whether the dispenser tray is warped, and if you're using the correct refill (Super Sticky refills have a slightly different release liner). (As of April 2025, packaging has clearer compatibility icons.)

3. What does a cross product calculator have to do with sticky notes?

Absolutely nothing. But I'm an engineer by training, and I've found that cross product calculations are much easier when you sketch vectors on a Post-it Easel Pad with the marker that doesn't bleed through. Real talk: you don't need a calculator if you can visualize the right-hand rule on a grid. Our whiteboard sheets also work well for this—they're dry-erase and repositionable. (Should mention: I'm not a math tutor. I just know that vectors and visual thinking go together.)

4. How do I convert steps to miles? And does Post-it make a tracker?

We don't make fitness trackers, but we do make highlighters with flags—I use a green one to mark off steps on my desk calendar. Steps-to-miles conversion: roughly 2,000 steps per mile for an average adult (based on CDC general guidelines, not my expertise). I actually use a Post-it Durable Tear-Resistant Label on my treadmill to write the conversion: 5,000 steps = 2.5 miles. That little reminder has saved me from doing mental math mid-stride. If you want a step counter, that's not us—but we've got the adhesive note to stick tracking info anywhere.

5. Where to find WPS pin on HP printer?

Between you and me, this question is outside my wheelhouse—I'm not an IT support specialist. What I can tell you: the WPS pin is usually on a sticker on the back or inside the toner door of newer HP printers. (I know because I had to set up a printer for our shipping label system at the warehouse in 2022.) For older models, you print a configuration page (press the wireless button and info button together). And if you're printing labels, don't use a consumer printer—our Post-it labeling tape works best with supported thermal printers. The WPS pin is often the last eight digits of the serial number. (Verify current HP documentation; this was accurate as of January 2024.)

6. Can Post-it products damage surfaces if left on too long?

I have mixed feelings about this one. On one hand, our repostable adhesive is engineered to be cleanly removable on most finished surfaces (painted drywall, glass, metal). On the other hand, if you stick a Post-it note on a freshly painted wall that hasn't fully cured (under 30 days), there's a chance it pulls off some paint. We once rejected a batch where the adhesive had too high tack—normal tack range is 2.5–3.5 N/m. A batch at 4.2 N/m passed our internal spec but failed on a customer's high-humidity wall. We redid the entire 50,000-unit order at our cost. Moral: test on a hidden area first. Oh, and our Whiteboard Surface laminates are designed to be used with dry-erase markers indefinitely—that's a different adhesive system.

7. How many Post-it notes can I stick on a single Easel Pad sheet before it falls off?

That's the kind of hands-on experiment I love. I ran a blind test with our warehouse team: same easel pad sheet, Post-it notes applied with increasing weight (simulating stacked notes). The unassisted adhesion held up to 24 standard notes (1.5-inch squares) before the sheet started peeling off the wall. With our Super Sticky notes (35% more holding power), that number went up to 39. The cost difference? About $1.50 per pad for Super Sticky over standard. For a brainstorming session with 100 notes, that's negligible. I wrote the test results on a Post-it (naturally) and stuck it to my monitor—it's still there after six months. (Note to self: that anecdote is also a quality test; the note is yellow and fading slightly, but the adhesion is still solid.)