SRPL’s Core Chemical Products
SRPL manufactures eight core product categories, each with specialized applications across multiple industries. Below is an overview of our complete product range, with detailed specifications for each category.
Shreenathji Rasayan Pvt. Ltd. (SRPL) offers a comprehensive portfolio of high-performance chemical products designed to meet the evolving needs of diverse industrial sectors. From automotive coatings and wood finishes to adhesives and pharmaceutical applications, our products deliver consistency, reliability, and superior performance.
With over 20 years of manufacturing expertise and a focus on innovation, SRPL produces Formaldehyde, Hexamine, Specialty Resins, Adhesion Promoters, and Industrial Solvents—all manufactured under ISO 9001:2015, ISO 14001:2015, ISO 45001, and ISO 27001 certifications.
Whether you require standard formulations or custom-engineered solutions, our experienced technical team collaborates with you to develop products that optimize your manufacturing processes and final product performance. Every product undergoes rigorous quality testing before shipment, ensuring batch-to-batch consistency and compliance with international standards.
SRPL manufactures eight core product categories, each with specialized applications across multiple industries. Below is an overview of our complete product range, with detailed specifications for each category.
Product Overview: SRPL produces high-purity aqueous formaldehyde (37% grade), a critical raw material and intermediate chemical used in resin synthesis, adhesives, biocides, and pharmaceutical applications. Our formaldehyde is manufactured using controlled oxidation technology with advanced stabilization systems, ensuring consistent quality and shelf-life.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Colorless to slightly yellow liquid | Visual inspection |
| Formaldehyde Content (%) | 37% | ASTM D6110, ISO 3104 |
| Formic Acid Content (%) | ≤0.1% | GC/FID analysis |
| Methanol Content (%) | 0.5-3.0% (as stabilizer) | GC analysis |
| pH (aqueous solution) | 2.5-4.5 | pH meter |
| Density (g/cm³) | 1.08-1.10 @ 20°C | Pycnometer |
| Refractive Index | 1.380-1.390 @ 20°C | Refractometer |
| Viscosity (cP) | 1.0-1.5 @ 20°C | Brookfield viscometer |
| Moisture (%) | ≤0.5% | Karl Fischer titration |
| Heavy Metals (ppb) | <10 (Pb, Cd, Cr) | ICP-MS analysis |
Export Markets: Europe, North America, Southeast Asia, Middle East, Africa
Product Overview: SRPL is India’s only BIS (Bureau of Indian Standards) licensed manufacturer of Hexamine, producing ultra-pure crystalline hexamine for adhesives, resins, pharmaceuticals, and rubber applications. Hexamine serves as a hardener and curing agent in thermoset resin systems, particularly in phenolic, epoxy, and urea-formaldehyde resins.
Our hexamine is synthesized using controlled ammonia-formaldehyde condensation technology, followed by precision crystallization and drying to achieve pharmaceutical-grade purity.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White crystalline powder or granules | Visual |
| Hexamine Content (%) | ≥99.5% | HPLC analysis |
| Moisture (%) | <2.0% | Karl Fischer |
| Particle Size | <100 micron (default) | Laser diffraction |
| Bulk Density (g/cm³) | 0.80-0.95 | ASTM D1109 |
| Melting Point (°C) | 256-263 | DSC/Melting point apparatus |
| Solubility (g/100mL water @ 20°C) | 50-55 | Dissolution test |
| Formaldehyde Release (%) | 0.5-1.5 | GC-FID analysis |
| Heavy Metals (ppm) | <10 (Pb, As, Cd) | ICP-OES |
| Residue on Ignition (%) | <0.2% | ISO 3104 |
Export Markets: North America, Europe, Southeast Asia, Japan, South Korea, China
Product Overview: SRPL produces Methylated Melamine-Formaldehyde (HMMM) Resins, a versatile synthetic resin used as a cross-linking agent in coating applications. HMMM resins are primarily used in coil coatings, automotive finishes, wood coatings, and industrial paints, where they provide excellent hardness, gloss, chemical resistance, and durability.
Our HMMM resins are manufactured using precision melamine-formaldehyde condensation technology with controlled methylation, resulting in products with optimized cure behavior, low VOC, and excellent application properties.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Clear to slightly turbid solution | Visual |
| Resin Solids (%) | 55-99% (as supplied) | ASTM D1259 |
| Viscosity (cP @ 25°C) | 80-150 (adjustable) | Brookfield viscometer |
| Gel Time (sec @ 80°C) | 45-90 (formulation dependent) | Gel time test |
| Acid Value (mg KOH/g) | <5 | ASTM D1386 |
| Color (Gardner) | <2 | Gardner colorimeter |
| pH (aqueous) | 3.5-5.5 | pH meter |
| Water Content (%) | <5% | Karl Fischer |
| Density (g/cm³) | 1.1-1.2 @ 25°C | Pycnometer |
| Methylol Groups (%) | 8-15% (by design) | Chemical analysis |
Coil Coatings (Largest segment – 40% demand)
Automotive Coatings (30% demand)
Wood Coatings & Varnishes (15% demand)
Industrial Paints (12% demand)
Specialized Applications (3% demand)
Product Overview: Butylated Melamine-Formaldehyde (BMF) Resins are alcohol-soluble, branched-chain resins used primarily in premium coatings, wood finishes, and specialty applications. The butylation process provides improved leveling, reduced yellowing, and faster air-dry properties compared to methylated resins.
SRPL produces full-range BMF resins with customizable solids, viscosity, and cure profiles to meet the most demanding coating specifications.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Clear solution | Visual |
| Solids Content (%) | 55-75% (adjustable) | ASTM D1259 |
| Viscosity (cP @ 25°C) | 100-500 (customizable) | Brookfield viscometer |
| Color (Gardner) | 1-3 (very light) | Gardner scale |
| Acid Number (mg KOH/g) | <8 | ASTM D1386 |
| pH | 3.5-5.5 | pH meter |
| Gel Time @ 80°C (min) | 30-60 (adjustable) | Gel-time apparatus |
| Melting Point (°C) | 85-110 | DSC analysis |
| Hydroxyl Number (mg KOH/g) | 15-35 | Chemical titration |
| Property | Typical Result | Industry Standard |
|---|---|---|
| Hardness (Pencil) | H-4H | H-2H (minimum) |
| Gloss Retention (2000h) | >80% | >70% |
| Impact Resistance | Excellent | Good |
| Chemical Resistance | Excellent | Good |
| Adhesion (Cross-hatch) | 5B (max) | 4B (minimum) |
| Yellowing (300h UV) | <2 Delta E | <5 Delta E |
Product Overview: SRPL produces Melamine-Urea-Formaldehyde (MUF) Resins, which combine the hardness of melamine resins with the cure flexibility of urea resins. MUF resins are widely used in adhesive formulations, coil coatings, and specialty applications where balanced performance and cost efficiency are critical.
| Parameter | Specification |
|---|---|
| Solids Content (%) | 50-65% |
| Viscosity (cP @ 25°C) | 80-200 |
| Gel Time @ 80°C (min) | 40-90 |
| Acid Number (mg KOH/g) | <8 |
| Hardness (Pencil) | 2H-4H |
| Gloss (60°) | >85° |
| Color (Gardner) | <3 |
Product Overview: SRPL manufactures specialized Adhesion Promoter formulations based on hexamine and other advanced chemistry, designed specifically for rubber-to-metal bonding, tire manufacturing, and elastomer applications.
These adhesion promoters ensure superior bond strength between rubber compounds and metal reinforcements (tire cords, steel wire, metal inserts), critical for tire performance and longevity.
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Crystalline powder | Visual |
| Active Hexamine (%) | 40-60% (adjustable) | HPLC |
| Moisture (%) | <3% | Karl Fischer |
| Particle Size (micron) | 50-150 | Laser diffraction |
| Bulk Density (g/cm³) | 0.75-0.95 | ASTM D1109 |
| Decomposition Temp (°C) | >200 | TGA analysis |
| Solubility | Slightly soluble in organic solvents | Dissolution test |
| Test | SRPL Promoter | Industry Standard |
|---|---|---|
| Cord Adhesion Strength | Excellent | Good |
| Delamination Resistance | >500h (salt spray) | >300h |
| Thermal Aging | <5% strength loss | <10% acceptable |
| Cure Processing | 160-180°C optimal | 150-190°C range |
| Scorch Resistance | >35 min (Mooney) | >30 min required |
| Your Industry | Primary Need | Recommended Products | Why? |
|---|---|---|---|
| Automotive OEM | Durable topcoat | BMF Resin, HMMM Resin | Superior hardness & gloss retention |
| Tire Manufacturing | Cord adhesion | Adhesion Promoter (Hexamine) | BIS Licensed, proven tire performance |
| Plywood & Laminates | Adhesive binder | MUF Resin, Formaldehyde | Cost-effective, fast cure |
| Wood Furniture | Topcoat finish | BMF Resin, HMMM Resin | Leveling, minimal yellowing |
| Coil Coatings | Pre-paint metal | HMMM Resin, MUF Resin | Chemical resistance, durability |
| Paint & Coatings | Cross-linking agent | HMMM, BMF, BUF Resins | Hardness, gloss, curing |
| Pharmaceutical | Medicinal API | Hexamine (USP grade) | Ultra-pure, pharmaceutical certified |
| Adhesive Mfg | Resin component | Formaldehyde, MUF Resin | Raw material for adhesive synthesis |
All SRPL products undergo rigorous testing and certification to ensure international quality standards:
SRPL’s technical team develops custom resin formulations and chemical solutions tailored to your specific manufacturing requirements.
SRPL exports chemical products to 50+ countries across 6 continents, with proven expertise in international logistics, compliance, and customer support.
Download Complete Product Specification Sheet (PDF) Includes detailed specifications, technical data, and safety information for all SRPL products.
Download Product Comparison Chart (PDF) Side-by-side comparison of HMMM, BMF, BUF, and MUF resins with performance metrics.
Download Safety Data Sheets (SDS) OSHA/GHSA-compliant SDS documents for all products (available in multiple languages).
SRPL’s comprehensive product range delivers performance, reliability, and value for diverse industrial applications. Whether you need standard products or custom formulations, our experienced team is here to partner with you.
