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Drothane™ Bio-Polyols: Castor-Based, REACH-Compliant Solutions for Sustainable Coatings and Flooring in Western Europe

Europe’s coatings and flooring sectors are experiencing a rapid transition toward sustainable materials, low-VOC technologies, and REACH-compliant raw materials. As Germany and France tighten environmental standards, manufacturers are looking for renewable polyurethane inputs that offer high performance while reducing regulatory risks.

Drothane™ Bio-Polyols developed by D.R. Coats Inks & Resins Pvt. Ltd. are engineered specifically for this shift. With castor-based chemistry, low VOC profiles, and strong performance in coatings, flooring, and adhesives, they provide European formulators with a reliable pathway to sustainable polyurethane systems.

DRC currently exports to more than 55 countries, supporting customers with REACH-aligned, renewable polyurethane raw materials for next-generation coatings, adhesives, and flooring applications.

1. Why Drothane™ Bio-Polyols Fit Western Europe’s Requirements

Renewable Castor-Based Backbone
Derived from castor oil, a rapidly renewable and non-food competing biomass, Drothane™ aligns strongly with European Union sustainability goals and carbon-reduction strategies. This makes it ideal for manufacturers working toward greener, more circular material choices.

REACH Compliance for Simplified Qualification
All inputs used in Drothane™ bio-polyols are carefully selected to comply with REACH, helping European formulators reduce regulatory burdens and ensure continuous supply-chain stability.

Low VOC for Better Indoor Air Quality
Strict VOC and indoor air-quality regulations in Germany and France (AgBB, AFNOR, EU Ecolabel) make low-emission materials essential. Castor-based polyols inherently support healthier, safer, and more eco-friendly formulations.

High Mechanical & Chemical Performance
Drothane™ grades offer a balance of strength, adhesion, flexibility, and chemical resistance meeting the demands of both industrial and architectural polyurethane applications.

Consistent, Scalable Quality
Manufactured under ISO 9001 and ISO 14001 systems, Drothane™ bio-polyols deliver tight QC control and batch-to-batch consistency required by European PU manufacturing plants.

2. Drothane™ 1145 & 1150 - Core Castor-Based Polyols

Drothane™ 1145 - High Hardness & Strong Adhesion

Ideal for:

  • Industrial PU coatings
  • PU flooring binders
  • High-hardness protective topcoats
  • Adhesives and primers

Key Features:

  • High OH value for strong crosslinking
  • Excellent adhesion to concrete and metal
  • High hardness with strong impact resistance
  • Good chemical and solvent resistance
  • Low VOC and Bisphenol-A free

Drothane™ 1145 delivers durability, hardness, and chemical resistance making it suitable for industrial flooring and heavy-duty coatings used widely across Germany and France.

Drothane™ 1150 - Flexible & Chemical-Resistant Polyol

Ideal for:

  • Flexible coatings and sealants
  • Elastomeric flooring
  • Construction adhesives
  • Waterproofing membranes

Key Features:

  • Excellent flexibility and elongation
  • Smooth film formation
  • Good compatibility with MDI & PMDI
  • Strong chemical resistance
  • High adhesion for PU sealants and adhesives

Drothane™ 1150 is preferred when elasticity, crack-bridging, and resilience are required—especially in construction sealants and elastomeric coatings.

3. Drothane™ 2761 / 2762 / 2763 - Water-Based Polyol Emulsions

Western Europe is moving strongly toward waterborne and low-VOC flooring technologies. Drothane™ 2761-2763 address this transition with advanced water-dispersible properties.

Zero-VOC, Self-Levelling, One-Coat Systems
Traditional flooring often requires multiple coats (primer + base + topcoat). Drothane™ emulsions allow single-coat systems, reducing labor, curing time, and material consumption.

Industrial-Grade Performance

These emulsions offer:

  • Strong resistance to oils, alkalis, and acids
  • Excellent thermal shock resistance
  • Smooth, self-levelling film formation
  • Excellent adhesion on concrete

Ideal for Hygiene-Critical Environments

  • Food processing
  • Pharma manufacturing
  • Commercial kitchens
  • Industrial warehouses

3K Cementitious PU System Compatibility

Typical Mixing Ratio:
Polyol: Isocyanate: Cement = 100: 115: 500

This yields high compressive strength, chemical resistance, and mechanical durability an essential combination for European industrial flooring.

4. Broader Bio-Polyol Customisation Capabilities

Beyond the primary grades highlighted above, DRC also manufactures a wider portfolio of specialty bio-polyols that vary in:

  • OH value
  • Viscosity
  • Flexibility or hardness
  • Molecular weight
  • Renewable content
  • Reactivity

This allows European customers to request custom-designed polyols tailored for coatings, adhesives, flooring, 3K PU systems, waterproofing membranes, or hybrid chemistries.

5. Sustainability Advantages for European Manufacturers

Lower Carbon Footprint
Castor-oil-based polyols significantly reduce environmental impact compared to petrochemical alternatives.

Non-Food, Non-Land-Intensive Feedstock
Castor does not compete with food crops or require irrigated farmland supporting responsible sourcing.

Aligned with EU Low-Emission Building Programs
Low-VOC systems are increasingly required for public procurement, flooring contracts, and environmentally certified buildings.

6. Key Applications in Western Europe

Drothane™ Bio-Polyols support multiple polyurethane systems, including:

  • Industrial and decorative floor coatings
  • PU screeds and PU cementitious flooring
  • Construction adhesives and sealants
  • Waterproofing membranes
  • Protective coatings for metal and concrete
  • 2K & 3K PU coating systems

These applications mirror the demands of Western European industries focusing on durability, sustainability, and compliance.

Drothane™ Bio-Polyols deliver a high-value combination of sustainability, REACH compliance, performance, and consistency precisely what Western European manufacturers need today. With castor-based chemistries, low-VOC performance, and both solvent-based and water-based options, the Drothane™ range provides a strong, future-ready solution for coatings, flooring, adhesive, and sealant systems.

DRC’s commitment to innovation, global supply capability, and high-quality manufacturing ensures European formulators a long-term, dependable partnership for specialized polyurethane requirements.

Ready to Explore Drothane™ for Your European Formulations?

If you would like samples, technical support, or formulation guidance, our team is happy to assist.