Das Filter Blog
How to Seal a Joint (and What to Do When the Paper Won't Stick)
Quick answer: Tuck the bottom edge of the paper tightly under the flower and roll up until only the gum strip is showing. Wet the strip lightly along its whole length, with the tip of your tongue or a damp fingertip. Press the seam closed starting at the tip end and working out, then hold it for a couple of seconds. A good seal starts with a good tuck: if the tuck is loose, no amount of gum will hold it.
How to seal a joint, step by step
- Tuck tight. Roll the flower into an even shape in the fold, then tuck the bottom edge of the paper (the side without gum) under the flower all the way along. This is the step that actually holds the joint together. More on the tuck in how to roll a joint.
- Roll up to the gum. Keep rolling with your thumbs until only the gum strip is showing.
- Wet the strip lightly. Run the tip of your tongue, or a damp fingertip, along the full length of the gum. You want it evenly damp, not soaked.
- Press from the tip out. Start at the filter tip end, where the paper is firmest, and press the seam down as you move toward the open end.
- Hold it. Pinch the seam for two or three seconds. Gum needs a moment to grab.
- Let it dry before you light it. A few seconds is usually enough. A wet seam burns unevenly and can split.
How to seal a joint without licking
A tongue isn't required. Any of these work:
- A damp fingertip. Dip a fingertip in water, shake off the extra, and run it along the gum.
- A cotton swab. Better control, and easy if you're rolling for someone else.
- A rolling machine. It rolls the paper for you; you still wet the gum, and a fingertip works fine. See how to use a rolling machine.
- Pre-rolled cones. There's no seam to seal at all. See how to fill a cone.
Whatever you use, use less water than you think. Too much water does more damage than too little.
Why won't my rolling paper stick?
| Problem | Likely cause | Fix |
|---|---|---|
| Seam pops open right away | Loose tuck, so the joint is pushing the paper apart | Re-roll with a tighter tuck |
| Gum won't grab | Too dry, or only wetted in spots | Wet the whole strip evenly, then hold it |
| Paper wrinkles and tears | Too wet | Use less moisture; a damp fingertip gives more control |
| Gum seems dead | Papers stored somewhere humid or hot, so the gum already activated | Store papers closed, at room temperature; use a fresh pack |
| Seam opens at the open end | Joint overfilled at that end | Pinch out a little flower before sealing |
| Thin papers keep tearing | Rice or ultra-thin paper is less forgiving | Roll slightly looser and use very little moisture |
Fixing a joint that came unsealed
- Small gap: wet the seam lightly again, press and hold.
- Gum used up: cut a thin strip off the gum edge of a spare paper, wet it, and lay it over the seam like a patch.
- Badly split: roll the whole joint, tip included, into a fresh paper, or unroll it and start again.
If extra paper keeps getting in the way of the seal, backrolling tears most of it off before you seal.
A seam that only partly holds often leads to a joint that burns down one side. If that's happening, see why does my joint canoe.
Does the tip help?
Yes, a little. A filter tip gives you a firm point to start the tuck and the seal, so the paper doesn't slide around at that end. Rolling with one is covered in how to roll a joint with a filter tip. Our Midway 7mm tips fit 1 1/4 papers.
Frequently asked questions
How do you seal a joint?
Tuck the bottom edge of the paper tightly under the flower, roll up until only the gum strip shows, wet the strip lightly along its whole length, and press it closed starting at the tip end. Hold the seam for a couple of seconds so it sets.
How do you seal a joint without licking it?
Wet a fingertip or a cotton swab with a little water and run it along the gum strip, then press the seam closed. A damp fingertip does the same job. Use only a little water.
Why won't my rolling paper stick?
Usually the gum strip was too wet, too dry, or wetted only in spots. Old papers stored somewhere humid can also lose their gum. Other causes are a loose tuck, so the paper is pulled apart from the inside, or a joint that's overfilled.
What if a joint comes unsealed?
Wet the seam lightly again and hold it shut. If the gum is used up, cut a thin strip from a spare paper's gum edge, wet it and wrap it over the seam, or roll the joint into a fresh paper.
Does the gum on rolling papers matter?
A little. Most brands say their gum is gum arabic, a natural plant gum. Clear cellulose papers usually have no gum strip and seal with moisture alone.
Products are for adults 21+.
