Pflaumer Brothers introduces crosslinking agent for 2K WB polyurethane coatings
Last update on Dec 5, 2025
Pflaumer Brothers announces the introduction of a next-generation aliphatic crosslinking agent developed for high-performance two-component (2K) waterborne polyurethane systems. The new product, TERACURE® HP‑47, is engineered to meet the performance demands of industries such as automotive, aerospace, construction, flooring, wood finishing, OEM production, and industrial coatings.
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Water-dispersible aliphatic polyisocyanate hardener
Based on Pflaumer test results, this advanced crosslinker delivers the long-term durability traditionally associated with solvent-borne isocyanates while offering the formulation flexibility and environmental advantages of waterborne systems.
TERACURE® HP‑47 is designed to provide the performance edge for a wide variety of applications, including high-gloss wood coatings, chemical-resistant floor finishes on concrete, and tough exterior coatings for metal, composite, or plastic substrates.
“TERACURE® HP‑47 is a water-dispersible aliphatic polyisocyanate hardener that combines broad solvent compatibility with exceptional mechanical, chemical, and UV resistance. The product enables the creation of durable, flexible, high-gloss coatings that can withstand abrasion, weather, and harsh chemical environments. TERACURE® HP‑47 delivers exceptional performance in applications for heavy-duty floor coatings, clear topcoats, and high-traffic surfaces,” said Brian Morris, sales development & marketing director at Pflaumer.
TERACURE® HP‑47 is compatible with a wide range of hydroxyl-functional polyols and offers excellent formulation control by allowing the user to fine-tune the NCO to OH ratio. According to Pflaumer, formulations based on TERACURE® HP‑47 with higher NCO:OH ratios, typically above 1.0, increase crosslink density and deliver higher hardness, improved chemical and solvent resistance, and enhanced toughness. Lower NCO:OH, ratios at or near 1.0 allow for greater flexibility and impact resistance, ideal for coatings onto plastics, elastomers, and flexible substrates.
Suitable for PU-grade solvents with less than 0.05% water
TERACURE® HP‑47, according to Pflaumer, must be used with polyurethane-grade solvents that contain less than 0.05% water. Proper isocyanate handling techniques should be followed to ensure optimal performance in moisture-sensitive systems. As with any high-performance chemical, TERACURE® HP‑47 should be validated in the intended end-use environment prior to application to ensure delivery of intended results.
Pflaumer reports that coatings based on TERACURE® HP‑47 can be formulated with a variety of additives to optimize properties and performance during and after application:
- Catalysts may be used to accelerate cure times in environments with variable temperature and humidity.
- Wetting agents and dispersants improve pigment stabilization and overall gloss.
- Matting agents can be incorporated for satin or low-gloss finishes.
- UV stabilizers help extend the coating’s durability in outdoor conditions.
- Co-solvents can be used to fine-tune film clarity and cure profiles.
- Adhesion promoters support long-term bonding on challenging substrates.
Pflaumer is a manufacturer of specialty chemicals for coatings, inks, plastics, metalworking fluids, and lubricants, as well as serving related industries such as composites, electronics, and construction. The company produces polymers for high performance coatings applications, including epoxies, urethanes, polyureas, and polyaspartics.