EKO-TECH® 42420 — Double-Sided Polypropylene Tape (Very High Adhesive Coat Weight)

Q: Can I get spooled long-length rolls?

Absolutely—see our Spooling CTA below; we’ll specify width, core, splice rules, and roll-to-roll tolerances for your line.

Heavy-duty bonding on challenging surfaces. 42420 keeps the same PP film thickness as our 42414, but uses a very high adhesive coating on both sides to achieve excellent adhesion on difficult or textured substrates. It’s also ideal for Fingerlift formats used by cardboard/corrugated manufacturers.

Key Highlights (Why choose 42420?)

Very high coat weight on both sides → exceptional grab and ultimate adhesion on rough, porous, or low-energy surfaces (e.g., recycled cardboard, foams, many plastics).
Same PP film thickness as 42414 → familiar handling, stable converting, clean bond line.
Fingerlift-ready → paper liner and converting options tailored for carton & corrugated applications.
Fast processing with hotmelt rubber system; high initial tack speeds up assembly.
Versatile formats: narrow to wide rolls, long-length spools, kiss-cut pads, die-cut parts.

Contact & Technical Assistance

Talk to an Adhesive Specialist

Typical Applications

Carton/corrugated: Fingerlift tapes for closures, tear-strips, and assembly aids.
Mounting on difficult substrates: recycled/rough board, textiles, foams, felt, and many plastics.
POP/POS & signage: secure fixing to painted, varnished, or slightly textured surfaces.
General assembly: nameplates, trims, profiles where strong initial tack is critical.
Lamination: bonding tapes to foam/felt to create vibration-damping or gap-filling pads.

Benefits in Detail

Sticks where others struggle: very high adhesive mass wets out textured/porous materials.
Process-friendly: quick stick reduces clamping/waiting; suitable for manual or automated application.
Clean presentation: clear PP film keeps the bond line discreet under graphics and trims.
Made to fit: engineered as Fingerlift tape for cardboard makers, with tailored liner edges and tab geometry.
Total cost-in-use: fewer re-works and faster throughput on challenging materials.

Converting Options

Precision slitting to your target width (narrow through wide).
Fingerlift execution (one- or two-side offset liner edges) for fast peel in carton assembly.
Die-cut / kiss-cut parts on sheets or rolls (island-placement, perforations, pull tabs).
Spooling (cross-wound) for long, interruption-free runs on automated lines.
Lamination to foams/felts/films to deliver application-ready pads and gaskets.

Send us your drawing, target substrate, and cycle-time constraints—we’ll recommend the most efficient format and liner design.

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Precision, ready to apply

Carrier: same PP film thickness and handling.
Adhesive mass: 42420 = very high coat weight (both sides) for difficult substrates; 42414 = standard coat weight for general use.
Recommended when: you need maximum tack & final adhesion on rough/porous/low-energy surfaces or want Fingerlift formats for corrugated.

Handling & Surface Prep

Clean with IPA/water (50:50) and dry thoroughly.
Apply firm, uniform pressure to maximize wet-out.
Allow dwell time; difficult/porous surfaces often gain further strength over the first hours.
Store in a cool, dry place; acclimatize rolls to the shop floor before use.

Technical Profile

Carrier: Polypropylene (PP) film — transparent; same thickness as 42414 for consistent handling.
Adhesive system: Synthetic rubber (hotmelt), very high coat weight on both sides for difficult surfaces.
Liner: Paper liner compatible with Fingerlift and kiss-cut converting.
Use conditions: Optimized for indoor use; validate if exposure to heat/UV/moisture is expected.
Application guidance: Apply to clean, dry surfaces at room temperature with firm pressure; allow dwell time for strength build-up.
Formats: Custom widths & lengths; spooled long rolls, sheeted, or on-roll kiss-cuts available.

Looking for precise values (adhesion, peel, shear, temperature window)? Ask for the 42420 Technical Data Sheet—we’ll match the spec to your substrate and process.