Why has low acid value coating resin become a new trend in the industry?
With the ban on TGIC (triglycidyl isocyanurate) in the EU and other regions, the environmentally friendly HAA (hydroxyalkylamide) curing system has rapidly emerged. Low acid value coating resin has become the core raw material in the field of powder coatings due to its excellent environmental performance and process adaptability. Taking NH6161 (high acid value) and NH6687 (low acid value) mixed resin as an example, it can achieve a semi-gloss effect of 60° gloss ≤38% through a dry mixing process, while meeting strict tests such as bending, adhesion (level 0), and impact resistance (50cm passed), perfectly replacing traditional toxic curing systems.
As a professional resin supplier, we provide customized low acid value resin solutions with the following core advantages:
Environmental compliance: The product fully complies with international standards such as REACH, has no physiological toxicity risk, and helps customers expand into the European and high-end markets.
Process stability: The acid value range is precisely controlled (such as the NH6687 low acid value model), ensuring efficient reaction with the HAA curing agent and shortening the curing time at 180°C to 30-90 seconds.
Multifunctional adaptation: Suitable for outdoor building materials, home appliances, automotive accessories and other scenarios, with a Tg value of 58°C, ensuring the dimensional stability of the coating under temperature difference environments.
We use a strict quality inspection system to ensure that the performance of each batch of resin is consistent:
Viscosity control: 1500~3500mPa·s/200℃ (such as NH6083 model), meeting the requirements of spraying, flow and other processes.
Mechanical strength: hardness ≥1H after curing, passed the φ2mm bending test, suitable for applications requiring high wear resistance.
Weather resistance optimization: passed UV aging and salt spray tests, suitable for metal substrate protection for long-term outdoor exposure.
We are well aware of the pain points of the coatings industry and provide full-cycle technical support:
Formula optimization service: Recommend resin mixing ratio (such as 90/10 ratio of NH6161/NH6687) according to customer substrate (such as cold-rolled steel, aluminum alloy).
Rapid response mechanism: Provide sample delivery and technical parameter interpretation within 24 hours.
Sustainable development commitment: Product design is in line with industry trends such as water-based and high solid content, helping customers cope with future regulatory upgrades.
Driven by stricter environmental regulations and consumption upgrades, low acid value coating resins have become the key to powder coating innovation. We provide one-stop services from raw materials to applications to help customers create differentiated competitiveness!
