Green Alternative For Conventional Solvent-Based DTM Coatings

February 1, 2024

Solvent-borne Direct-to-Metal (DTM) coatings are a type of industrial coating formulation designed to be applied directly onto metal surfaces without the need for a primer. These coatings contain solvents as a carrier medium, which facilitates the application process by providing the necessary viscosity for spraying or brushing. The solvents in these formulations evaporate during the drying process, leaving behind a protective and decorative coating on the metal substrate.

However, in the industrial coatings industry, the journey toward environmental sustainability has taken center stage. Conventional approaches often reliant on solvent-borne formulations for Direct-to-metal (DTM) coatings, have faced criticism due to their environmental and health implications. The release of volatile organic compounds (VOCs) during application contributes to air pollution, while the potential health hazards for workers and the community underscore the urgency of exploring more sustainable alternatives.

Water-based Coatings For Industrial Applications

Water-based coatings for industrial applications have been available for many years. Despite significant advances in resin technology, their use remains limited in these markets compared to their adoption in the architectural coating sector. This can be attributed to perceptions of poorer performance and higher costs when compared to solvent-based solutions. The biggest driver for switching to water-based systems is the introduction of stricter VOC and other regulations around the globe, which can be met via the use of waterborne coatings.

Introducing GEN TPA R2122

In response to the ongoing shift towards lower VOC content in various industries worldwide, new raw materials are regularly emerging. In this context, Maha introduces GEN TPA R2122, a cutting-edge water-based thermoplastic emulsion renowned for its excellent corrosion resistance in direct-to-metal coatings. An eco-friendly alternative to traditional solvent-based thermoplastic acrylics.

Performance Advantages of GEN TPA R2122

At the core of GEN TPA R2122’s appeal are its exceptional performance attributes. These include:

Good Anti-Corrosion Properties:
Have a good anti-corrosion performance. The emulsion forms a protective layer, making it an ideal choice for direct-to-metal coatings. This is especially crucial in applications where corrosion resistance is paramount.
Fast Drying Speed:
Efficiency is key in industrial applications, and GEN TPA R2122 meets this demand with its fast drying speed. It has less than 30 drying speed for touch dry and 24 hours drying speed for hard dry. This ensures quick and effective application processes, enhancing overall productivity.
Versatile Substrate Adhesion:
GEN TPA R2122 demonstrates superior adhesion to various substrates, including but not limited to Cold Rolled Steel (CRS), Galvanized sheet, Aluminum, Cast iron, and Stainless steel. This versatility opens up a wide range of potential applications across different industries.
Suitable for Indoor and Outdoor Use:
Whether applied indoors or exposed to the elements outdoors, GEN TPA R2122 maintains its performance integrity. This adaptability makes it a reliable choice for diverse environmental conditions.

Potential Applications of GEN TPA R2122

The versatility of GEN TPA R2122 is exemplified in its potential applications across different industries. As a 1K, water-based metal and plastic coating that dries at room temperature, it finds relevance in various settings. Key applications include:

Cargo Container Paint:
GEN TPA R2122 proves ideal for painting cargo containers, offering not only a visually appealing finish but also the necessary durability to withstand the rigors of transportation and outdoor exposure.
Metal Structure Paint:
In the realm of structural coatings, GEN TPA R2122 excels in providing corrosion resistance and adhesion on various metal surfaces, ensuring the longevity of metal structures.
Appliances Paint:
Appliance coatings demand both aesthetic appeal and durability. GEN TPA R2122, with its fast drying speed and adhesion properties, is well-suited for coating appliances in a cost-effective and environmentally friendly manner.
DIY Metal Paint:
For DIY enthusiasts looking to enhance metal surfaces with a professional-grade finish, GEN TPA R2122 offers a user-friendly solution that combines ease of application with impressive performance.

Technical Output

Item	Achievable Paremeter
Recommended drying temperature/ schedule	Air dry or, at 80oC for 30 minutes
Gloss 60o, GB/T 9754	85%
Pencil hardness, GB/T 6739, Mitsubishi Pencil	HB
Salt spray resistance, 5% NaCl, GB/T 1771	>120 h
Adhesion, GB/T 9286	0

Appearance Comparison vs. Solvent-Based TPA

Conlusion: GEN TPA R2122 Alternative Solutions For DTM Coatings

In addressing the environmental and health concerns associated with conventional solvent-borne DTM coatings, GEN TPA R2122 emerges not just as an alternative but as a transformative solution. Its ability to outperform in appearance, anti-corrosion properties, and environmental and health compliance signifies a groundbreaking shift in the coatings industry.

Maha Asia is an official distributor for GEN TPA R2122, contact our team of professionals for more information.