Preview · about 1 minute
Plant-floor overview. Unlock below for the full converter checklist.
Tackifiers can be up to about 40% of a hot melt or PSA and a large share of the cost. They raise tack by lowering modulus and raising Tg of a rubbery base polymer (the opposite of a plasticizer). Useful molecular weight is roughly 600–1800: some cohesion, no weak boundary layer. They must wet the substrate and, in a melt, stay heat-stable — unsaturated resins can gel in the pot.
What's in this guide
- Rosin, terpene, hydrocarbon
- Compatibility first
- Stability and the rest
- Where they are used
Longer plant training (5–10 min)
Coming soon — downloadable deep-dive for the floor.
General plant guidance only — not a substitute for your process, SDS/TDS, or line trials. Call 800-249-0337 to match a grade.