Name: Terpene-Phenolic Resin Tackifier TP-115
Brand: Coatingsink
SKU: terpene-phenolic-tackifier
Availability: InStock

Question 1

What substrates does TP-115 improve adhesion to?

Accepted Answer

TP-115 is a high-polarity copolymer that significantly improves peel and tack on polar substrates such as PET, BOPP, aluminum foil, and stainless steel. Its phenolic component increases compatibility with acrylic dispersions and polar elastomers, making it effective in water-based PSAs after emulsification or solvent-based systems at 10–30 phr loadings.

Question 2

Is TP-115 compatible with styrene-block copolymer (SBC) hot-melt formulations?

Accepted Answer

TP-115 is primarily designed for acrylic, chloroprene, and natural rubber systems. Compatibility with SBC (SIS/SBS) hot-melts is limited compared to aliphatic C5 resins due to its higher polarity and phenolic content. For SBC hot-melts, a blended approach using TP-115 at ≤15 phr alongside a C5 aliphatic resin typically yields the best balance of tack and cohesion.

Question 3

How should TP-115 be handled and dissolved for solvent-based PSA formulations?

Accepted Answer

Dissolve TP-115 in aromatic solvents (toluene, xylene) or ethyl acetate at 40–60% solids by adding the resin flake to the solvent under moderate agitation at 60–80°C. Avoid prolonged exposure above 150°C to prevent color build-up. Once dissolved, the resin solution is stable for 6 months in sealed containers at ambient temperature.

Acid Value	<5 mg KOH/g
Softening Point (R&B)	113–118°C
Specific Gravity (25°C)	1.04–1.06 g/cm³
Color (Gardner, 50% toluene)	≤8
Viscosity (50% in toluene, 25°C)	800–1200 mPa·s

Terpene-Phenolic Resin Tackifier TP-115

Specifications

FAQ

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