Your two-part adhesive gels fine in the summer, but the same batch in an unheated January shop is still soft the next morning and the line backs up. Or the anhydride potting compound on the data sheet wants six hours at temperature you would rather not pay for. The fix in both cases is usually not a different primary hardener. It is a few parts of a tertiary-amine accelerator that lowers the activation energy and pulls the cure forward, and the one most formulators reach for first is DMP-30.
The short version: DMP-30 is tris-2,4,6-(dimethylaminomethyl)phenol, CAS 90-72-2, a low-viscosity amber tertiary-amine liquid (C15H27N3O, ~265.4 g/mol) used as a catalytic accelerator for epoxy systems. It is not a stoichiometric N-H hardener; as a Lewis base it speeds the cure of amine, polyamide, amidoamine, and anhydride curing agents at room temperature, and at higher loadings it can homopolymerize the epoxy on its own. Typical use is a few parts per hundred resin (phr): roughly 0.5-3 phr to accelerate an anhydride cure, 1-5 phr to push an ambient amine or polyamide, and 5-10 phr as the sole catalyst, all starting points to validate on your own system. It is the standard low-cost choice for fast ambient and low-temperature cure in adhesives, coatings, composites, anchoring grouts, and electrical castings, and it is the generic equivalent of the tris-DMP-30 accelerator grade sold as Ancamine K54 (an Evonik product). The honest trade-off: faster cure means a shorter pot life and a higher peak exotherm, and it adds amber color.
What DMP-30 actually is
DMP-30 is a single compound: tris-2,4,6-(dimethylaminomethyl)phenol, CAS 90-72-2 (PubChem CID 7026), a phenol ring carrying three dimethylaminomethyl arms. That structure is the whole story. Each arm ends in a tertiary amine nitrogen, and the ring carries a phenolic hydroxyl. Because the nitrogens are tertiary, they have no N-H hydrogen to open epoxide rings the way a primary or secondary amine hardener does. DMP-30 therefore does not cure epoxy by addition at a fixed stoichiometric ratio. It catalyzes.
Physically it is a light-yellow to amber (sometimes reddish-brown) liquid with a distinct amine odor, low viscosity near 200 mPa·s at 25 C, and a density just under water at roughly 0.97-0.98 g/cm³. The low viscosity is part of why it is the default accelerator: a few phr blends into a resin or hardener without thickening the mix or needing a solvent.
How DMP-30 works
A tertiary amine is a base and a nucleophile, and DMP-30 uses both roles. In an amine-cured system, it accelerates the existing epoxy-amine reaction: the basic nitrogen and the phenolic hydroxyl help activate the epoxide and shuttle protons, so the same primary hardener (an aliphatic amine, a polyamide, an amidoamine) reaches gel and through-cure faster and at lower temperature than it would alone. This is the lever the sister chemistries cannot pull on their own in the cold.
In an anhydride-cured system, the mechanism is more direct. The tertiary amine initiates ring-opening, promoting epoxy homopolymerization that generates secondary hydroxyl groups, which in turn open the anhydride ring and propagate the cure. Without an accelerator, anhydride systems are slow and need a long, hot bake; a small dose of DMP-30 brings the cure time and temperature down to something a production line can live with.
At higher loadings and with no co-hardener, DMP-30 acts as an anionic initiator and homopolymerizes the epoxy itself, building an ether-linked network. The Ancamine K54 grade of this chemistry is described by its manufacturer as a non-crosslinking homopolymerization catalyst for exactly this reason. That network is real but different from an amine-crosslinked one (see the trade-offs below).
The practical point: DMP-30 is dosed catalytically, in a few phr, not at the amine-hydrogen-equivalent-weight stoichiometry you use to set a primary amine ratio. If you are still choosing the primary hardener, our epoxy curing agent selection guide compares the amine classes; this page is about the accelerator you add on top of one.
What DMP-30 is used for
Anywhere a system needs to cure faster, cooler, or both, DMP-30 is a candidate. The common applications:
- Two-part adhesives. Structural and general-purpose epoxy adhesives use DMP-30 to hit a workable fixture time at ambient temperature, including in cool conditions where an unaccelerated amine drags.
- Ambient and low-temperature coatings. Protective and floor coatings that have to cure on a cold slab benefit from the faster room-temperature gel, paired with a polyamide or amidoamine that tolerates the conditions.
- Composites and laminating/casting resins. As an accelerator for amine or anhydride laminating systems, it shortens demold time. With anhydrides it is the classic accelerator for castings and filament winding.
- Anchoring and grouting. Epoxy anchor and repair grouts that must set on a jobsite use a tertiary-amine accelerator to reach handling strength quickly.
- Electrical potting and encapsulation. Anhydride-cured potting and casting compounds, valued for low color and good electrical properties, rely on an accelerator like DMP-30 to cure in a reasonable cycle.
How much DMP-30 to add
Dose DMP-30 to the cure speed and exotherm you actually need, not to a stoichiometric ratio. The loading depends entirely on what it is accelerating. The figures below are widely cited reference ranges; treat them as a starting window and confirm gel time, peak exotherm, and through-cure on your own formulation.
| System being accelerated | Typical DMP-30 loading (phr) | What it does |
|---|---|---|
| Anhydride-cured casting / laminating / potting | ~0.5-3 | Initiates and speeds the anhydride cure; cuts bake time and temperature |
| Ambient amine / polyamide / amidoamine coating or adhesive | ~1-5 | Faster room-temperature gel and through-cure; helps cold cure |
| Liquid epoxy blended with a flexibilizer (e.g. polysulfide) | ~5-15 | Drives cure of slower, flexibilized systems |
| DMP-30 as the sole catalyst (epoxy homopolymerization) | ~5-10 | Cures the resin alone via etherification, no co-hardener |
The comparable Ancamine K54 grade carries a broad recommended range of 1-15 phr across system types, which brackets the table above. Two rules hold throughout. First, more accelerator means a shorter pot life and a higher peak exotherm: as an illustration, a 100 g mass with about 7 phr DMP-30 in a representative system can fall to a 35-45 minute pot life at 25 C, and a larger mass runs hotter and faster still. Second, dose by weight against your specific resin and hardener and validate, because the right number moves with resin type, mass, film thickness, and temperature.
Comparable to Ancamine K54
If your formulation or a competitor’s data sheet calls out Ancamine K54, the active chemistry is the same compound described on this page: a tertiary amine, tris-2,4,6-(dimethylaminomethyl)phenol. Ancamine is an Evonik product, and the K54 grade is their tris-DMP-30 accelerator, specified as a low-viscosity, low-VOC, non-crosslinking homopolymerization catalyst and activator for a wide range of epoxy hardeners (polyamines, polyamides, amidoamines, dicyandiamide, polymercaptans). RawSource DMP-30 is the generic equivalent of that grade, supplied against its own Certificate of Analysis. We reference the brand only to identify the comparable chemistry; there is no affiliation or endorsement, and you should confirm equivalence for your specific use.
DMP-30 vs imidazole accelerators
DMP-30 is not the only catalytic option, and the choice between it and an imidazole comes down to latency. DMP-30 is active at room temperature the moment it is mixed in, which is exactly what you want for a fast ambient two-part cure, and exactly what you do not want if you need a one-component product that ships and stores before it cures.
Imidazoles fill that second role. 2-Methylimidazole and related solid imidazoles are latent at room temperature and fire with heat, and they can homopolymerize epoxy to higher-Tg, low-color networks, which makes them central to one-component adhesives, electronics encapsulants, and powder coatings. 1-Methylimidazole (NMI) is a liquid tertiary-amine catalyst used similarly and as an anhydride accelerator. The rough division of labor:
| DMP-30 (tertiary-amine phenol) | Imidazoles (NMI, 2-methylimidazole) | |
|---|---|---|
| Activity | Active at room temperature on mixing | Often latent; many fire with heat |
| Best fit | Fast ambient / low-temp two-part cure | One-component, heat-cure, high-Tg networks |
| Form / handling | Low-viscosity liquid, blends easily | Liquid (NMI) or solid (2-MI) |
| Color in cure | Adds amber | Generally lower color |
Combining a tertiary amine with an imidazole is a known way to push cure rate further when neither alone gives the profile you want.
The honest trade-offs
DMP-30 is cheap, effective, and forgiving, but it is not free of cost:
- Speed buys a shorter pot life. Each increment that brings the gel forward also cuts working time. Dose to the open time the application needs, not to the fastest possible cure.
- Higher exotherm in mass. Accelerating a thick casting raises the peak exotherm, which can stress, crack, or discolor the part. Thick sections often want the *lowest* effective dose, sometimes with a slower hardener.
- Color. It is an amber liquid and adds color to the cured part, more so at higher loadings and with heat. For water-clear decorative work that is a real limitation, where a cycloaliphatic amine such as isophorone diamine (IPDA) on a low-color route may serve better.
- It is an accelerator, not a primary hardener at low dose. At a few phr it modifies the cure of a stoichiometric amine or anhydride; it does not replace it. Only at high solo loadings does it cure epoxy alone, and that ether-linked network behaves differently (and can be more brittle) than an amine-crosslinked one.
- It does not fix off-ratio or contamination problems. If a fast aliphatic amine like diethylenetriamine (DETA) or triethylenetetramine (TETA) is blushing or mixing off-ratio, an accelerator will not solve that; see amine blush causes and prevention.
Buying DMP-30 and epoxy accelerators
RawSource supplies DMP-30 (tris-2,4,6-(dimethylaminomethyl)phenol), comparable to Ancamine K54, along with the amine hardeners it accelerates (DETA, TETA, IPDA) and the imidazole catalytic options (NMI, 2-methylimidazole) for coatings and industrial manufacturing formulators, in drums, IBCs, and bulk with CoA documentation. Tell us your curing agent, your target cure temperature and pot life, and your color tolerance, and request a sample to qualify the loading on your own system.
Frequently asked questions
What is DMP-30 used for?
DMP-30 is a tertiary-amine accelerator for epoxy systems. It speeds the room-temperature and low-temperature cure of amine, polyamide, amidoamine, and anhydride curing agents, and at higher loadings it can homopolymerize the epoxy on its own. It is used in two-part adhesives, ambient and cold-cure coatings, composites and laminating/casting resins, anchoring and repair grouts, and anhydride-cured electrical potting and encapsulation.
Is DMP-30 the same as Ancamine K54?
They are the same chemistry. Ancamine K54 is Evonik’s grade of tris-2,4,6-(dimethylaminomethyl)phenol, the same tertiary-amine accelerator as DMP-30, CAS 90-72-2. RawSource DMP-30 is the generic equivalent, supplied against its own Certificate of Analysis. The brand name is used only to identify the comparable product; no affiliation or endorsement is implied, and you should confirm equivalence for your application.
How much DMP-30 should I add?
It is dosed catalytically, in parts per hundred resin, not at a stoichiometric ratio. As reference starting points: roughly 0.5-3 phr to accelerate an anhydride cure, 1-5 phr to push an ambient amine or polyamide, 5-15 phr with flexibilized systems, and 5-10 phr when DMP-30 is the sole catalyst homopolymerizing the epoxy. The grade comparable to Ancamine K54 is recommended over a broad 1-15 phr window. More accelerator means a shorter pot life and higher exotherm, so validate gel time and cure on your own formulation.
Does DMP-30 cure epoxy by itself?
At higher loadings, yes. As an anionic initiator it can homopolymerize the resin into an ether-linked network with no separate hardener. At the low, few-phr loadings used to accelerate a primary amine or anhydride, it does not cure the system alone; it speeds the cure of the stoichiometric curing agent. The homopolymerized network behaves differently from an amine-crosslinked one and can be more brittle.
What is the difference between DMP-30 and an imidazole accelerator?
DMP-30 is active at room temperature as soon as it is mixed, which suits fast two-part ambient and low-temperature cure. Imidazoles such as 2-methylimidazole are often latent and fire with heat, which makes them suited to one-component, heat-cured, and higher-Tg systems like electronics encapsulants and powder coatings. 1-Methylimidazole (NMI) is a liquid tertiary-amine catalyst used similarly and as an anhydride accelerator. DMP-30 generally costs less and blends easily but adds more color.
What are the downsides of using DMP-30?
Faster cure comes with a shorter pot life and a higher peak exotherm, which can crack or discolor thick castings, so thick sections often want the lowest effective dose. It is an amber liquid and adds color to the cured part, which matters for clear decorative work. It is an accelerator, not a stoichiometric hardener at low dose, and it will not correct off-ratio mixing or blush. It is also a corrosive amine, so handling requires appropriate PPE.
Editorial note. This article is general technical guidance for adhesive, coating, composite, and electrical formulation professionals. Cure speed, pot life, exotherm, color, and the correct accelerator loading depend on your specific resin, curing agent, ratio, mass or film thickness, and cure environment, and must be validated on your own system; the Certificate of Analysis governs the grade you buy. Brand names (Ancamine, an Evonik product) are used only nominatively to identify a comparable chemistry; no affiliation or endorsement is implied. DMP-30 is a corrosive tertiary amine and can cause skin and eye burns and respiratory-tract irritation; review the current Safety Data Sheet (SDS) and use appropriate PPE before handling. Products are sold for industrial and professional use only. Nothing here is a medical, health, or safety claim. RawSource makes no warranty, express or implied, and assumes no liability for use of this information.
