100 °C
Boiling point at 760 mmHg
Methyl Methacrylate Monomer · CAS 80-62-6
Dow MMA and Dow MMA inhibited grade — a clear, colorless methacrylate monomer for PMMA, coatings, adhesives and binders, supplied by Ascent Group Co., Ltd with batch documentation.
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Dow MMA — Dow Methyl Methacrylate — is a clear, colorless liquid built around a polymerizable methacrylate group and a reactive ester group. It is the monomer used to produce poly(methyl methacrylate) (PMMA) and a wide range of acrylic copolymers.
Its chemical formula is C5H8O2, with CAS 80-62-6 and EC 201-297-1. The monomer homopolymerizes into PMMA, whose glass transition temperature is 105 °C, and copolymerizes readily with many other monomers to raise impact strength, weather resistance and transparency.
Published values from Dow's Methyl Methacrylate technical data sheet.
A low-density clear liquid, slightly soluble in water and soluble in most organic solvents.
Low viscosity supports accurate metering in bulk and emulsion polymerization.
Methyl methacrylate polymerizes readily when exposed to heat, light or ultraviolet radiation, so the monomer is supplied stabilized. Dow MMA inhibited grade carries MeHQ (hydroquinone monomethyl ether) — also listed as AO-30 — at 10–100 ppm to hold the monomer stable through storage and transit.
Dissolved oxygen is part of the inhibition system: fully inerted, oxygen-free storage can undermine stabilization, so containers stay sealed and are kept away from heat and direct light. Inhibitor level is checked before packing, because it directly affects shelf life and safe handling over long-distance shipment.
Buyers who need a defined inhibitor window can state the target concentration on the order, together with the batch Certificate of Analysis, SDS and TDS for the shipped lot.
Specification limits published in Dow's Methyl Methacrylate technical data sheet.
Where Dow MMA is used, from cast acrylic sheet to specialty copolymers.
Homopolymerized into polymethyl methacrylate, then cast or extruded into transparent sheet, signage, glazing and optical components with high impact strength and UV stability.
A clearcoats and industrial finishes where the ester group contributes weather resistance, durability, abrasion resistance and low color.
Pressure-sensitive adhesives and emulsion binders that call for UV stability and long-term aging resistance.
Printing inks and packaging material resins formulated with acrylic copolymers.
Polymer-modified concrete and repair compounds using methacrylate copolymer chemistry.
Optical components and disposable device polymers made from high-purity acrylic resins.
Ascent Group Co., Ltd supplies Dow MMA with attention to the parameters that determine how the monomer behaves in polymerization. Each lot is reviewed against its Certificate of Analysis before release: 99.8 wt% min assay, 0.05 wt% max water, 0.005 wt% max acidity, 10 APHA color and MeHQ within 10–100 ppm, so the grade ordered is the grade documented.
TDS, SDS and COA papers are aligned to the shipped batch, packaging is specified in sealed drums, IBCs or ISO tanks, and inhibitor level is maintained through storage and transit. Containers are kept away from heat and direct light, and oxygen-free inerting is avoided because dissolved oxygen is part of the inhibitor system.
Our role is to make sourcing verifiable — defined specifications, matched paperwork and one named contact, Fanki Shi, for quotations and batch documents.
Four checkpoints that keep the inhibited monomer stable from release to delivery.
Assay, water, acidity and color are checked against the specification on the batch Certificate of Analysis.
MeHQ level is confirmed within the specified range before the container is filled.
Filled into sealed drums, IBCs or ISO tanks to limit contamination and oxygen loss.
Containers stay away from heat and direct light through transit, with papers matched to the lot.
Reach Fanki Shi by phone, email, WhatsApp or Skype for Dow MMA and Dow MMA inhibited grade enquiries, batch paperwork and quotations. Ask for the Certificate of Analysis and SDS matched to your lot.
