INTRODUCTION
Indorez® Kota Resin is a modified non self-cured phenolic resin, it can increase rubber adhesion to steel, polyester, rayon, nylon, aramid and other fabric cord. It’s an adhesive agent, acts as methylene acceptor, can 100% replace resorcinol and resorcinol resins in resorcinol- formaldehyde-silica, enhance adhesion between rubber and reinforcing materials.
It can substantially reduce fumes and weight loss compared to resorcinol; Kota is more environmentally friendly than resorcinol. Compared to RE and RF, KOTA is anti caking and with good storage stability, helps to reduce labor cost. It requires a methylene donor, e.g. HMMM or HEXA to complete the reaction and become thermoset.
This resin is mainly used by tyre manufacturers, hose manufacturers, conveyor belt manufacturers, textile-reinforced rubber product manufacturers.
| Chemical Name | Modified Phenolic Adhesive Resin |
| CAS no. | 9039-25-2 (Formaldehyde, polymer with methylphenol and phenol) |
| EINECS no. | 618-543-2 |
| Molecular formula | C14H16O3 |
| Molecular weight | 232.27 |
| Structure |  |
APPLICATIONS
| Rubber Industry |
| KOTA Resin is primarily used to improve the adhesion between rubber compounds and various reinforcement cords. It enhances bonding with steel, polyester, rayon, nylon, aramid and other fabric cord. |
| KOTA Resin is used by manufacturers of: Tyres, Conveyor belts (Textile and steel-cord belts) Industrial hoses, V-belts, timing belts & transmission belts, Rubberised fabrics and coated textiles, Rubber composites requiring strong interlayer bonding. |
| KOTA Resin is often incorporated in RFL (Resorcinol–Formaldehyde–Latex) dip formulations to increase bonding strength |
| Others |
| Kota resins have diverse applications across industries, including the production of high-pressure laminates for countertops, a binder for brake linings and clutch facings in the automotive sector, and electrical insulation for components like printed circuit boards. |
| They are also used in construction materials like plywood and particleboard, as adhesives for wood products, and as protective coatings due to their excellent heat, chemical, and water resistance. |
| They also find applications in hot melt traffic paints, coatings & primers, lamination adhesives, abrasive products. |
PROCESSING ADVANTAGES:
• Compatible with common rubbers like NR, SBR, BR, NBR
• Works in both dipping and compounding processes
• Provides consistent bonding during vulcanization
• Improves dispersion and wetting of fibres/cords
SPECIFICATIONS
| Test | Unit | Specification |
|---|---|---|
| Appearance | – | Light red to reddish brown |
| Form & Odour | – | Solid Granules & Odourless |
| Softening point | °C | 90.0 – 105.0 |
| Decomposition Temperature | °C | NLT 200 |
| Heating loss (105ºC, 2h) | % | NMT 2.0 |
STORAGE
Keep cool (approximately 25 ℃℃) and dry in closed original packaging
PACKING
25 kg paper plastic bag
REACH Status
Registered
ExSyn offers Kota Resin on commercial scales and welcomes enquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please contact us.
N,N-Diisopropylethylamine (DIPEA), also known as Hünig’s Base, is a sterically hindered tertiary amine. It is a colorless liquid with a strong amine odor and is widely used as a low nucleophilic organic base in pharmaceutical, agrochemical, and fine chemical synthesis. Due to its bulky structure, DIPEA effectively scavenges acids without participating in unwanted side reactions.
Tris(2,4-di-tert-butylphenyl) phosphite (TDPP) often recognized commercially as Irgafos 168 is a high-performance organophosphorus compound primarily utilized as secondary antioxidant and processing stabilizer. Its characteristic to undergo metallation reaction and provide a cost-effective synthetic processes allows it to be useful in biaryl coupling reactions.
Undecylenic acid is an unsaturated fatty acid naturally derived from castor oil. It is a colorless to pale yellow liquid with antifungal and antimicrobial properties. Chemically known as 10-undecenoic acid, it contains an 11-carbon chain with one double bond and is widely used in pharmaceuticals
5-Nitro Isophthalic Acid (5-NIPA) is an aromatic organic compound derived from isophthalic acid. The presence of two carboxylic acid groups along with a nitro substituent at the 5-position makes it a valuable intermediate in the manufacture of fine chemicals, pharmaceuticals, dyes, pigments, and advanced materials.
Trichloroacetonitrile is a halogenated organic compound belonging to nitrile family. Its strong electrophilic character makes it a valuable intermediate in organic synthesis. It readily undergoes hydrolysis, particularly under acidic or basic conditions, yielding trichloroacetamide and related derivatives.
Zinc Dialkyl Dithio Phosphate (ZDDP) belongs to a family of coordination compounds classified as members of transition metal dithiophosphate.
ZDDP is widely used based on a combination of different selected alcohols thus providing antiwear performance and enhanced thermal and hydrolytic stability. In combination with other additives, it is especially used for the formulation of hydraulic fluids, industrial gear oils, metalworking fluids, greases and automotive engine oils.
Dibutyl sulfide is an organosulfur. It is a clear, colorless to pale yellow liquid characterized by a strong sulfur-like odor and is primarily used as an intermediate in chemical synthesis, specialty organic manufacturing, and research applications. The compound exhibits good solvency properties and moderate thermal stability, making it useful in industrial and laboratory processes involving sulfur-containing organic compounds.
Oleylamine is a long-chain (C18) primary fatty amine derived from natural fatty acids, typically sourced from vegetable oils. It is produced from oleic acid through conversion of the carboxylic acid group (–COOH) into an amine group (–NH₂). With its optimal balance of hydrophobic chain length and reactive amine functionality it serves as a versatile and dependable building block for high-performance formulations.
Sodium Hyaluronate is the sodium salt of hyaluronic acid, a naturally occurring glycosaminoglycan known for its exceptional ability to retain moisture, along with its viscoelastic and biocompatible properties, making it highly valuable across pharmaceutical, cosmetic, and biomedical applications.