Wanhua’s Isocyanates Specialties

Transforming the Chemical and Polymer Industry

Venturing into the world of chemicals and polymers means exploring a sector where molecular reactivity drives high-value innovations and solutions that redefine industrial performance. In this highly specialized environment, isocyanates are consolidating their position as strategic inputs thanks to their versatility and transformability.

Wanhua’s isocyanate specialties, distributed in Peru by PROQUINSA (Productos Químicos Industriales S.A.), stand out among the protagonists of this technological evolution. Its portfolio, backed by state-of-the-art chemical engineering, opens new possibilities for formulating coatings, adhesives, elastomers, and highly demanding polyurethane systems.

With the support of PROQUINSA’s technical-commercial team, the industry can learn how Wanhua’s solutions are redefining the standards of performance, efficiency, and innovation in the chemical and polymer sector.

The Science behind Isocyanates

Isocyanates are chemical compounds characterized by the presence of the -NCO functional group, which is responsible for their remarkable reactivity with polyols, amines, and other substrates. Thanks to this property, they are essential in the synthesis of polyurethanes, high-performance coatings, foams, structural adhesives, and numerous technical polymers.

In industrial applications, isocyanates act as true chemical activators, enabling the manufacture of materials with superior properties: chemical resistance, thermal stability, controlled flexibility, durability, and excellent abrasion and weathering behavior.

In this context, Wanhua is positioned as a global leader in the production of Isocyanate specialties, a technology that PROQUINSA makes available to the Peruvian and South American industries.

Wanhua Isocyanate Specialties – Portfolio Distributed by PROQUINSA
Below is an optimized technical and commercial description of each item:

1. WANNATE® TL-75E

Aromatic polyisocyanate based on TDI.

• Colorless or slightly yellow liquid, with a slight odor.
• Suitable for two-component polyurethane coatings and adhesives.
• High reactivity with hydroxylated polyols.
• Excellent chemical resistance and mechanical stability.
• Sensitive to humidity; requires storage in the original hermetic container and protected from heat.
• Minimum shelf life: 6 months.

Ideal for maximizing productivity without compromising performance.

2. WANNATE® HB-75MX

Biuret-type aliphatic polyisocyanate based on HDI.

• Dissolved in a 1:1 mixture of MPA and xylene.
• Specially formulated for high-durability, gloss-retention coatings.
• Excellent resistance to weathering and chemical agents.
• Widespread use in automotive refinishing, transportation, plastics, and industrial finishing.
• Requires storage between 0 and 30 °C, protected from humidity.
• Shelf life: 12 months.

A premium isocyanate for applications where color stability and mechanical performance are critical.

3. WANNATE® HT-90BS

HDI-based aliphatic polyisocyanate solution.

• Colorless to slightly yellow liquid.
• Excellent compatibility with polyacrylates and polyester polyols.
• Outstanding performance in 2K coatings, with gloss, hardness, chemical resistance, and durability.
• Applications: automotive, transportation, industrial finishes, and technical plastics.
• Minimum shelf life: 15 months.

A reliable solution for high-performance coatings.

4. WANNATE® TT-350B

TDI-based aromatic polyisocyanate for fast drying coatings.

• Excellent balance between reactivity and handling time.
• High chemical and mechanical resistance.
• Avoid excessive dilutions to prevent turbidity or sedimentation.
• Minimum shelf life: 6 months under controlled conditions.
• Ideal for automotive, general industry, plastics, and applications requiring accelerated productivity.

An essential product for fast curing processes without compromising final performance.

Main applications:

1. High-performance industrial coatings
2. Structural adhesives
3. High resistance and airtightness sealants
4. Polyurethane foams for comfort and thermal insulation
5. Adhesives for the footwear industry
6. High durability automotive paints
7. Electronic encapsulation
8. Fiberglass reinforced plastics
9. Enhancing additives for lubricating oils
10. High-performance technical polymers

Seven Reasons to Choose Wanhua Isocyanates with PROQUINSA

1. Certified global quality
2. Broad portfolio of specialty chemicals
3. World-class R&D
4. PROQUINSA’s specialized technical and after-sales support
5. Sustainability-oriented processes
6. Technology and continuous innovation
7. Strategic vision and development of future solutions

Wanhua’s Isocyanates, distributed by PROQUINSA, offer high-value chemical solutions for industries that demand superior performance, efficiency, and reliability. These specialties raise the standard of formulations for coatings, adhesives, foams, and technical polymers, backed by innovation, quality, and specialized technical support.

PROQUINSA puts this world-class technology at the service of the Peruvian and South American industries, accompanying each project with professional advice and a results-oriented approach.