Melamine Formaldehyde Resin.

Hard, glossy, heat- and scratch-resistant chemistry for surfaces that take daily punishment and tableware that survives the dishwasher.

Clear pale amberC₃H₆N₆ + HCHO → MF condensate

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How it’s made

Waiting for the clear point

Every melamine batch has one moment the operators watch for: the instant a white slurry turns into a clear resin.

01 / 04 Opaque white slurry
Building the slurry

Formaldehyde goes into the reactor first, then crystalline melamine is fed in under agitation. The result is a thick, white, opaque slurry.
02 / 04 Clear, pale amber
The clear point

Steam in the jacket brings the batch up to temperature. As the melamine reacts it dissolves, and at the clear point the slurry turns into a clear, pale liquid. That is the sign the reaction is on track.
03 / 04 Concentrating
Vacuum concentration

Vacuum lowers the boiling point so water can be drawn off at a gentle temperature. The resin builds to its target chain length and solids without being cooked.
04 / 04 Crystal-clear resin
Cool, filter, fill

Cooling water replaces the steam to stop the reaction on specification. The resin is filtered to remove any micro-gels and filled into clean totes.

Opacity

Concentration

Viscosity

Temperature

Process film

The same four stages, frame by frame

01 / 04 Opaque white slurry
Building the slurry
02 / 04 Clear, pale amber
The clear point
03 / 04 Concentrating
Vacuum concentration
04 / 04 Crystal-clear resin
Cool, filter, fill

Laminates & molding

Overview

Melamine formaldehyde resin brings surface hardness, heat resistance and water resistance beyond what urea systems can offer. It cures into a hard, transparent network that is prized in decorative laminates for countertops, furniture and flooring.

The same properties make our WP-MF series the material of choice for molded melamine tableware: light, break-resistant and dishwasher-safe. We supply impregnation grades for paper overlays and molding-compound grades, each tuned for flow, clarity and cure to the customer’s process.

Applications

Decorative laminates (HPL)Overlay and decor-paper impregnation for scratch-resistant surfaces.

Molded tablewareLightweight, break-resistant, dishwasher-safe dinnerware.

Surface overlaysGlossy, hard finishes for furniture, countertops and flooring.

Technical moldingAmino molding compounds for appliance and electrical parts.

Typical properties · WP-MF series
Appearance	Clear to slightly hazy liquid
Solid content	52 ± 2 %
Viscosity (B4 cup, 30 °C)	20 – 40 s
pH at 30 °C	8.8 – 9.6
Specific gravity at 30 °C	1.22 – 1.24
Water tolerance	1 : 2.5 – 1 : 3.5
Free formaldehyde	≤ 0.8 %
Shelf life at 30 °C	15 days

Typical values, not a sales specification. A certificate of analysis accompanies every consignment; parameters are tailored to order.

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Packaging & storage

Supplied in HDPE barrels of 235 kg net; spray-dried powder grades available on request. Store cool and dry, away from direct sunlight, and use within the stated shelf life. Melamine resins advance faster than urea systems in warm storage.

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