Match PSA chemistry to face stock, liner, and line environment: wet glues for cold glass, LSE hot-melt for PET, thermal-safe logistics PSAs, and high-shear tape grades—with links to cluster specs and troubleshooting guides.
Table of Contents
Choosing a pressure-sensitive adhesive (PSA) or wet labeling glue is not a single-spec decision. Converters win when they map three inputs together: the facestock and print stack, the release liner and coat-weight window, and the real operating environment (temperature, humidity, line speed, and downstream storage). This matrix summarizes Senda’s labeling and tape routes using only performance tiers already stated on our solution pages—use it to narrow chemistry before you request peel/shear benchmarking on your stock.
How to Use This Matrix
- Start with facestock + print: paper wet label, coated paper, thermal direct, BOPP/film carrier, or foam/PET tape construction.
- Add environment: cold wet glass, freezer logistics, summer warehouse heat, or high-speed rotary/coater speed.
- Pick chemistry route: wet casein/synthetic, hot-melt PSA, or water-based acrylic PSA.
- Open the linked application guide or troubleshooting guide for machine settings—not generic viscosity guesses.
- Request a structured trial when you need documented peel/shear on your liner and facestock combination.
Matrix A — Face Stock & End Use
- Cold glass + paper label (beer/wine/export): Wet casein/synthetic hybrids; qualify ice-bath holdout and wash-off for returnable glass. →
Bottle labeling cluster · Rotary labeler troubleshooting
- PET/PP bottles + film or paper labels: LSE hot-melt PSA routes for low surface energy plastics; validate at your rotary speed (up to 60,000 BPH cited in application guides). →
- Metal cans (food/beverage): Hot pick-up / overlap pastes with anti-corrosion focus; zero-stringing at canning speeds. →
- Thermal logistics labels (e-commerce, parcel): PSA with zero bleed-through to protect barcode and face stock; winter tack down to about -20°C on cluster specs. →
Logistics labels cluster · Slot die coating guide
- Recycled corrugated + PE mailers: High initial tack on dusty PCW board; distinguish converter coating vs. end-user application. →
Logistics labels cluster · Logistics label case study
- Tire / rough LSE industrial labels: Higher coat-weight PSA families for curved, oily, or rough surfaces. →
- BOPP/kraft packaging tape & double-sided foam: High shear, zero stringing, long aging stability on tape lines. →
Specialty tapes cluster · PSA coating defects guide
Matrix B — Application Environment
- High humidity / condensation on bottles: Prioritize moisture penetration and compression discipline before increasing coat weight. →
Rotary labeler troubleshooting
- Ice-water or cold-chain export programs: Qualify total immersion holdout (72-hour programs cited on labeling pages) and wash-off for returnable glass. →
Brewery condensation case study
- Winter logistics (-20°C tack on specs): Separate plant coatability from field cold grab; avoid fixing winter lift by overcoating thermal stock. →
- Hot warehouse / summer tape storage: Watch edge ooze and roll blocking; cohesion balance matters more than raw tack. →
PSA coating defects guide · Specialty tape edge-ooze case study
- High-speed converting (up to ~300 m/min label specs / 60k BPH bottle specs): Stabilize viscosity tolerance and die cleanliness before changing polymer platform. →
Matrix C — Chemistry Route (Quick Picker)
- Wet glues (casein/synthetic): Rotary glass bottling, wash-off returnable programs, ice-water export. →
- Hot-melt PSA: LSE plastics, tire labels, courier films, fast set on coaters. →
- Water-based acrylic PSA: “No-label look” clarity, slot die coat weights commonly cited around 15–25 gsm on pillar copy. →
Need a Grade Shortlist for Your Stock?
Send facestock, liner, and line speed. We route wet glue, hot-melt PSA, or water-based acrylic paths before recommending a trial pail.
Explore Labeling SolutionsLiner, Coat Weight, and Converting Discipline
Release liner choice changes die-cutting and matrix stripping before it changes field adhesion. Logistics programs should prove zero bleed-through and clean matrix stripping at your web speed; specialty tape programs should prove edge ooze control after storage. If defects appear on rewind, use the coating troubleshooting path instead of guessing peel values.
Slot die PSA coating optimization · PSA coating defects troubleshooting
Compliance Note
Many beverage and logistics labels fall under FDA 21 CFR 175.105 as indirect food-contact adhesives when glue does not touch product contents. Food-adjacent VIP labels still need documentation aligned to your actual geometry—see regulatory resources for declaration routes.
When to Escalate to Lab Benchmarking
- You need peel/shear targets on a new liner or facestock combination not covered above.
- You are coating in-plant and see streaking, chatter, or coat-weight bands.
- You are running rotary glass and cannot separate machine variables from chemistry.
Submit facestock, liner, line speed, and failure photos via contact — sample request. We typically screen adhesion and converting behavior before recommending a grade change.
Final Takeaway
The PSA selection matrix is a routing tool: facestock plus environment picks the chemistry family; application guides and linked guides carry the machine-side detail. Do not swap polymer platforms until temperature, coat weight, and die hygiene are stable—then validate on your stock with a structured trial.
Frequently Asked Questions
Does this matrix replace a technical data sheet?
No. It routes you to the right chemistry family and application guide. Final grade selection still requires TDS review and validation on your facestock, liner, and coater or labeler.
Can one PSA work for both bottle labels and logistics labels?
Usually not without compromise. Bottle programs prioritize wet pick-up, wash-off, or LSE hot-melt on containers; logistics PSAs prioritize thermal hold-out, bleed control, and die-cutting—use the row that matches your primary failure mode.
Where do peel and shear numbers come in?
This guide avoids generic peel/shear tables because targets depend on your liner, coat weight, and test method. Request structured benchmarking when you need numeric targets for customer specs.
What if I coat PSA in-house and see streaking or edge ooze?
Use the slot die optimization and PSA coating defects guides before changing polymer type. Most visible defects trace to die hygiene, coat weight, or cohesion balance—not “low tack” alone.
Match PSA to your label facestock
Request complimentary 1 kg lab material (shipping prepaid by recipient) after screening on your substrate and line conditions.
References
Technical Disclaimer: All technical data is based on standard laboratory conditions. Users should perform their own verification testing to confirm suitability for specific substrates, processes, and regulatory requirements. Senda Glue makes no warranties, express or implied, and assumes no liability for improper use of the products or reliance on this information.
