Dry Film and In-Can Preservatives – Reliable Protection for Coatings and Formulations

Microbial contamination is one of the most common challenges faced by paint, coating, adhesive, and construction of chemical manufacturers. Even small traces of bacterial or fungal growth can spoil stored products, cause odor, discoloration, or affect coating durability after application.
Classic Solvents provides high-performance dry film and in-can preservatives designed to prevent microbial contamination at every stage of your process – from storage to surface protection. With decades of experience and strong technical partnerships, we deliver preservative systems that ensure long-term stability, consistent performance, and dependable supply for industrial applications.

Understanding Dry Film and In-Can Preservatives

In-can preservatives (also called wet-state preservatives) prevent the growth of microorganisms such as bacteria, mold, and yeast inside liquid formulations during production, transport, and storage. These protect the product before it is applied.
Dry film preservatives, on the other hand, provide post-application protection. Once the coating or film dries, these additives safeguard surfaces from microbial attack, black spotting, or film degradation caused by algae and fungi.
Both systems are formulated using carefully balanced active ingredients such as isothiazolinones, carbamates, zinc pyrithione, and other broad-spectrum biocides. Classic Solvents offers preservatives compatible with both water-based and solvent-based formulations, ensuring effective control without affecting performance, color, or stability.

Advantages of Using Preservatives in Formulations

• Long-lasting microbial protection: Avoids the development of bacteria, fungi, and algae over the entire life cycle of the product.
• More coating durability: Helps the surface degrade less, stain less, and discolor less after drying.
• Storage stability: Keeps the product’s storage parameters, such as odor, appearance, and viscosity, stable throughout its shelf life.
• Very efficient: The product is equally effective in different formulations and environmental conditions.
• Environmentally friendly: Low-VOC and formaldehyde-free versions are available for use.
• Good compatibility: The product can be used in emulsions, adhesives, sealants, and coatings.
• Release mechanism: Provides the product with a continuous defensive shield even under severe conditions.
• Quality assurance: Every production unit undergoes tests for purity, dispersion, and ‍‌performance.

These features help manufacturers maintain both product integrity and process efficiency, making preservatives a crucial component in every formulation.

Why Partner with Classic Solvents

With over four decades of experience in India’s chemical industry, Classic Solvents is recognized as a trusted name among preservative and additive suppliers. We combine strong sourcing partnerships with technical expertise to deliver reliable, compliant, and cost-effective preservative solutions.

Reliable Sourcing and Supply

We collaborate with reputable manufacturers, both local and international, to ensure reliable availability, delivery, and quality assurance for all preservative grades.

Technical Knowledge

Our staff understands the complex chemistry of microbial protection. This expertise assists our clients in selecting in-can or dry film systems, recommended dosage, and guidance on compatibility with base resins and pH.

Testing and Quality Assurance

Every product goes through rigorous testing for active content, stability, and dispersion performance. We base our quality assurance program on ISO-certified practices and the Publisher’s Chapter of industry standards.

Application Support

We offer total support from selecting preservative, determining dosage, troubleshooting, and formulation recommendations to ease your manufacturing procedures.

Supply and Pricing Options

We can adjust quantities, offer turnkey supply options, and provide fair pricing that fits any scope of work, from bulk manufacturers to smaller formulators.