Quick Search
Alkyl Melamine Formaldehyde is a chemical compound with various industrial applications, primarily in the adhesives and coatings industries
Alkyl Melamine Formaldehyde is a type of thermosetting resin that is synthesized through the chemical reaction of melamine, formaldehyde, and alkyl alcohols (such as butanol, methanol, or other aliphatic alcohols).
Alkyl Melamine Formaldehyde belongs to the family of aminoplast resins, which are a subclass of synthetic polymers known for their excellent durability, heat resistance, hardness, and chemical stability once cured.
CAS Number: 68002-25-5
Molecular Formula: C4H8N6O
Molecular Weight: 156.15
Synonyms:Acid modified alkylated melamine formaldehyde resin (generic) (30285910), Melamine-formaldehyde-1-butanolcopolymer, Melamine-formaldehyderesin,n-butylalcoholmodified, poly(melamine-co-formaldehyde),butylatedsolution, 1,3,5-Triazine-2,4,6-triamine, polymer with formaldehyde, butyl ether, 1,3,5-Triazine-2,4,6-triamine,polymerwithformaldehyde,butylated, Hexahydroxy-methyl melamine resin, POLY(MELAMINE-CO-FORMALDEHYDE), BUTYLATE D, 95 WT. % IN 1-BUTANOL, 1-Butanol-formaldehyde-melamine copolymer
Alkyl Melamine Formaldehyde is an organic compound with the formula C3H6N6.
This white solid is a trimer of cyanamide, with a 1,3,5-triazine skeleton.
Alkyl Melamine Formaldehyde contains 66% nitrogen by mass, and its derivatives have fire-retardant properties due to its release of nitrogen gas when burned or charred.
In this resin system, melamine acts as the nitrogen-rich core molecule, providing the final polymer with strong structural and thermal properties, while formaldehyde functions as a reactive crosslinking agent that enables the formation of a three-dimensional polymer network.
The alkyl groups (derived from the alcohols used in the reaction) are introduced to modify the properties of the final resin—particularly to improve flexibility, solubility, and compatibility with other resin systems, as well as to reduce brittleness and enhance surface characteristics like gloss and water resistance.
Alkyl Melamine Formaldehyde can be combined with formaldehyde and other agents to produce melamine resins.
Such resins are characteristically durable thermosetting plastic used in high–pressure decorative laminates such as Formica, melamine dinnerware including cooking utensils, plates, and plastic products, laminate flooring, and dry erase boards.
Alkyl Melamine Formaldehyde foam is used as insulation and soundproofing material, and in polymeric cleaning products such as Magic Eraser.
Alkyl Melamine Formaldehyde resin tableware was evaluated by the Taiwan Consumers' Foundation to have 20,000 parts per billion of free melamine that could migrate out of the plastic into acidic foods if held at 160 °F (71 °C) for two hours, such as if food were kept heated in contact with it in an oven.
Alkyl Melamine Formaldehyde gained infamy because Chinese food producers Sanlu Group added it to baby formula in order to increase the apparent protein content, causing the 2008 Chinese milk scandal.
Ingestion of melamine may lead to reproductive damage, or bladder or kidney stones, and bladder cancer.
Alkyl Melamine Formaldehyde is also an irritant when inhaled or in contact with the skin or eyes.
The United Nations' food standards body, the Codex Alimentarius Commission, has set the maximum amount of melamine allowed in powdered infant formula to 1 mg/kg and the amount of the chemical allowed in other foods and animal feed to 2.5 mg/kg.
While not legally binding, the levels allow countries to ban importation of products with excessive levels of melamine.
Alkyl Melamine Formaldehyde resin is typically a clear, viscous liquid or solid that can be blended with other resins, such as urea-formaldehyde, phenolic, or alkyd resins, to enhance specific performance traits depending on the desired application.
Once applied and cured—usually through heat or acid catalysis—the resin becomes chemically and thermally stable, making it suitable for long-lasting coatings, laminates, and adhesives.
This type of resin is widely used in industrial coatings, particularly in automotive finishes, appliance coatings, metal furniture, and coil coatings, where a high level of durability, chemical resistance, and aesthetic appearance is required.
It is also used in the wood industry for decorative laminates, plywood bonding, and paper coatings, where the resin provides both mechanical strength and a smooth, glossy surface.
While Alkyl Melamine Formaldehydes are valued for their performance, they also come with health and environmental concerns, especially due to their formaldehyde content, which may be released as a volatile organic compound (VOC) during manufacturing or curing.
Formaldehyde is classified as a probable human carcinogen, and prolonged exposure to uncured or poorly ventilated materials may pose respiratory and skin irritation hazards.
Therefore, proper handling, ventilation, and regulatory compliance are essential when working with these resins in industrial environments.
Density: 1.03 g/mL at 25 °C
refractive index: n20/D 1.49
Flash point: 149 °F
Alkyl Melamine Formaldehyde is a modified melamine-formaldehyde resin that has been chemically altered by introducing alkyl groups through reaction with alcohols such as butanol, methanol, or isobutanol.
This alkylation process is specifically designed to improve the performance characteristics of the base melamine-formaldehyde resin, which is otherwise rigid, brittle, and relatively inflexible in its unmodified form.
By incorporating these alkyl side chains, the resulting resin gains enhanced solubility in organic solvents, improved flow properties, and greater compatibility with other resins, making it more suitable for industrial applications that require both strength and aesthetic finish.
At the core of its structure, the resin is built on Alkyl Melamine Formaldehyde, a nitrogen-rich triazine compound known for its ability to form strong, thermally stable networks when crosslinked.
Formaldehyde, a small and highly reactive Alkyl Melamine Formaldehyde, is used to crosslink the melamine molecules through methylol bridges, forming a dense, interlinked polymer matrix during the curing process.
The addition of Alkyl Melamine Formaldehyde converts some of these reactive sites into etherified alkyl groups, which remain part of the final cured polymer, imparting flexibility, water repellency, and reduced brittleness.
Once applied, Alkyl Melamine Formaldehydes are cured through a heat-activated condensation reaction, often with the help of acid catalysts such as p-toluenesulfonic acid or maleic acid.
The curing process results in the formation of a hard, chemically crosslinked structure that is highly resistant to abrasion, moisture, heat, solvents, and chemical attack.
This durability makes these resins particularly suitable for use in high-performance surface coatings and protective finishes.
In industrial applications, Alkyl Melamine Formaldehyde resins are most commonly used in metal coatings, including automotive topcoats, appliance enamels, can coatings, and coil coatings, where a combination of high gloss, scratch resistance, and long-term durability is required.
These coatings can withstand UV radiation, cleaning chemicals, fuels, and weathering, which is why they are favored in products exposed to outdoor or industrial environments.
They are also used extensively in the woodworking and furniture industry, particularly in the production of decorative laminates (such as Formica®), MDF coatings, particleboard, and plywood, where they serve as both adhesives and surface sealants.
The alkyl modification helps prevent cracking and delamination in wood-based panels by allowing the resin to expand and contract with temperature and humidity changes.
Additionally, in the textile industry, these resins are used as crosslinking agents in wrinkle-resistant fabric treatments, enhancing fabric durability and reducing shrinkage.
Despite their widespread use, Alkyl Melamine Formaldehyde resins raise certain health and environmental concerns, largely due to their formaldehyde content.
During the production, application, and curing stages, formaldehyde vapors may be released, which are classified as carcinogenic to humans (Group 1) by the International Agency for Research on Cancer (IARC).
Prolonged exposure to these emissions in inadequately ventilated spaces can lead to respiratory problems, skin irritation, allergic reactions, and even long-term health risks in workers and users.
Because of these risks, modern formulations are often designed to be low-formaldehyde or formaldehyde-free, and strict regulatory standards are in place in many countries to limit occupational and environmental exposure.
To ensure safety, industries that use these resins must implement engineering controls, such as fume hoods, closed systems, and ventilation units, and provide personal protective equipment (PPE) including gloves, goggles, and respirators for workers handling uncured materials.
Finished and properly cured Alkyl Melamine Formaldehyde coatings are generally considered stable and inert, with very low formaldehyde emission levels if manufactured and cured correctly.
Alkyl Melamine Formaldehyde is part of the core structure for a number of drugs including almitrine, altretamine, cyromazine, ethylhexyl triazone, iscotrizinol, meladrazine, melarsomine, melarsoprol, tretamine, trinitrotriazine, and others.
Uses Of Alkyl Melamine Formaldehyde:
In one large-scale application, Alkyl Melamine Formaldehyde is combined with formaldehyde and other agents to produce melamine resins.
Such resins are characteristically durable thermosetting plastic used in high-pressure decorative laminates such as Wilsonart, melamine dinnerware, laminate flooring, and dry erase boards.
Alkyl Melamine Formaldehyde cookware is not microwave-safe, and can be identified from the fact it is "slightly heavier and noticeably thicker than its plastic counterparts."
Alkyl Melamine Formaldehyde foam is used as insulation, soundproofing material and in polymeric cleaning products, such as Magic Eraser.
Alkyl Melamine Formaldehyde is one of the major components in Pigment Yellow 150, a colorant in inks and plastics.
Alkyl Melamine Formaldehyde also is used in the fabrication of melamine polysulfonate, used as a superplasticizer for making high-resistance concrete.
Sulfonated melamine formaldehyde (SMF) is a polymer used as a cement admixture to reduce the water content in concrete while increasing the fluidity and the workability of the mix during handling and pouring.
Alkyl Melamine Formaldehyde results in concrete with a lower porosity and a higher mechanical strength, exhibiting an improved resistance to aggressive environments and a longer lifetime.
Alkyl Melamine Formaldehyde and its salts are used as fire-retardant additives in paints, plastics, and paper.
A Alkyl Melamine Formaldehyde fiber, Basofil, has low thermal conductivity, excellent flame resistance and is self-extinguishing; this makes it useful for flame-resistant protective clothing, either alone or as a blend with other fibres.
Alkyl Melamine Formaldehyde was once envisioned as fertilizer for crops during the 1950s and 1960s because of its high (66% by mass) nitrogen content.
However, melamine is much more expensive to produce than other common nitrogen fertilizers, such as urea.
The mineralization (degradation to ammonia) for Alkyl Melamine Formaldehyde is slow, making this product both economically and scientifically impractical for use as a fertilizer.
Alkyl Melamine Formaldehyde is sometimes illegally added to food products in order to increase the apparent protein content.
Standard tests, such as the Kjeldahl and Dumas tests, estimate protein levels by measuring the nitrogen content, so they can be misled by the addition of nitrogen-rich, but non-proteinaceous compounds such as melamine.
There are instruments available today that can differentiate melamine nitrogen from protein nitrogen.
Alkyl Melamine Formaldehyde derivatives of arsenical drugs are potentially important in the treatment of African trypanosomiasis.
Alkyl Melamine Formaldehyde use as non-protein nitrogen (NPN) for cattle was described in a 1958 patent.
In 1978, however, a study concluded that melamine "may not be an acceptable non-protein N source for ruminants" because its hydrolysis in cattle is slower and less complete than other nitrogen sources such as cottonseed meal and urea.
One of the primary and most significant uses of Alkyl Melamine Formaldehyde resins is in the formulation of high-performance coatings for metal surfaces, where they serve as crosslinking agents or topcoat resins that provide exceptional durability, chemical resistance, and a high-gloss finish.
These resins are commonly used in the automotive industry for vehicle topcoats, in home appliances like washing machines and refrigerators, and in metal office furniture where a smooth, hard, and scratch-resistant finish is required that can withstand long-term wear and cleaning with detergents or solvents.
The alkyl-modified melamine structure enhances the coating’s flexibility and adhesion to metal substrates, helping it resist cracking or peeling under mechanical stress or temperature changes.
Although less common than urea- or Alkyl Melamine Formaldehyde resins in this role, Alkyl Melamine Formaldehyde is sometimes used in high-performance adhesive formulations for engineered wood products, particularly where moisture resistance, thermal stability, and surface finish are critical.
Alkyl Melamine Formaldehyde may be added to existing resin systems to improve bond strength and environmental resistance in composite panels and laminates.
In the wood and furniture industry, Alkyl Melamine Formaldehyde is widely used in the production of decorative laminates—such as those found in kitchen countertops, cabinetry, and office furniture—where it acts as a hardening and protective agent that gives surfaces a glossy, durable, and water-resistant finish.
It is also used in coatings for medium-density fiberboard (MDF), particleboard, and plywood, where it enhances both the appearance and performance of wood products by providing a protective barrier against moisture, heat, and everyday abrasion.
Alkyl Melamine Formaldehydes chemical structure allows the cured resin to flex slightly with changes in temperature and humidity, reducing the risk of surface cracking or delamination over time.
Another major application is in coil coating systems, where metal sheets—typically aluminum or steel—are coated in continuous rolls before being fabricated into products.
Alkyl Melamine Formaldehyde resins are used as curing agents or crosslinkers in these coatings, providing outstanding resistance to chemicals, corrosion, and ultraviolet (UV) light, making them ideal for use in architectural panels, vehicle body parts, garage doors, and industrial enclosures.
The addition of alkyl groups helps the resin maintain flexibility, reducing the risk of cracking when the coated metal is bent or shaped.
Due to their excellent compatibility with various synthetic resins, Alkyl Melamine Formaldehyde resins are frequently used as blending agents or crosslinkers in alkyd resins, polyester resins, and epoxy resins to improve the overall mechanical strength, surface hardness, chemical resistance, and durability of the final product.
When combined with alkyds, for instance, they enhance the drying speed and durability of paints; when mixed with polyesters or acrylics, they improve resistance to water, solvents, and scratching.
With the increasing demand for low-VOC (volatile organic compound) formulations, alkyl melamine resins are used in high-solids and waterborne coating systems, where their ability to cure at lower temperatures and crosslink with a variety of resins makes them ideal for eco-friendly industrial coatings.
Their use supports sustainability goals while maintaining the mechanical and chemical properties required by industry.
In the textile industry, Alkyl Melamine Formaldehyde is used in durable press (wrinkle-resistant) fabric finishes, where it acts as a crosslinking agent that bonds with cellulose fibers in cotton or cotton-blend fabrics.
This chemical treatment helps fabrics maintain their shape, resist shrinking, and remain wrinkle-free after washing, while also improving abrasion resistance.
However, due to formaldehyde concerns, this use is declining in favor of low-emission alternatives.
These resins are also used in paper treatment, especially in the production of abrasive papers, overlay films, and high-pressure laminates, where the resin impregnates paper layers to provide strength, transparency, and resistance to moisture and wear.
Once cured, the resin hardens into a tough, clear film that can be sanded, printed, or laminated, making it suitable for decorative and functional applications such as flooring and countertops.
Safety Profile Of Alkyl Melamine Formaldehyde:
Alkyl Melamine Formaldehyde—like other melamine-formaldehyde-based compounds—present a number of hazards that are important to understand, especially in occupational and industrial settings where these resins are manufactured, processed, or applied before curing.
These hazards primarily arise from the presence of free formaldehyde, volatile organic compounds (VOCs), and, in some cases, residual unreacted chemicals in the resin system.
One of the most significant concerns with Alkyl Melamine Formaldehyde resins is their potential to release free formaldehyde, especially during manufacture, storage, application, and thermal curing.
Formaldehyde is classified as a known human carcinogen (Group 1 by the International Agency for Research on Cancer, IARC), and exposure to its vapors can lead to a wide range of health effects, including eye, nose, and throat irritation, difficulty breathing, asthma-like symptoms, and—at high or repeated levels—an increased risk of cancer, particularly nasopharyngeal cancer and leukemia.
While cured resins emit far less formaldehyde, uncured or partially cured products still pose a significant hazard, especially in poorly ventilated spaces.
The short-term lethal dose of Alkyl Melamine Formaldehyde is on a par with common table salt, with an LD50 of more than 3 grams per kilogram of bodyweight.
U.S. Food and Drug Administration (FDA) scientists explained that when melamine and cyanuric acid are absorbed into the bloodstream, they concentrate and interact in the urine-filled renal tubules, then crystallize and form large numbers of round, yellow crystals, which in turn block and damage the renal cells that line the tubes, causing the kidneys to malfunction and lead to kidney stones, kidney failure, and death.
Signs of melamine toxicity can include irritability, blood in the urine, little to no urine, symptoms of kidney infection, or high blood pressure.
