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Poly-Cure 1000 is the Urethane Curing Agent Made From a Safe Monomer
The chemical name for Poly-Cure 1000 is Methylene bis Methyl Anthranilate. The Methyl Anthranilate monomer from which Poly-Cure 1000 is made is present in food plants such as grapes, and Methyl Anthranilate itself has long been approved for use in foods and perfume by the FDA.
The EPA has also approved the direct use of Methyl Anthranilate monomer as a bird repellant spray for food crops like corn, or for golf courses, even next to waterways.
Poly-Cure 1000 is the amine curing agent which imparts high performance and usable speed
Poly-Cure 1000 is an amine hardener. Amine hardeners are used to provide urethanes with durability, toughness, high tear strength, elongation, and abrasion resistance to a greater extent than can be obtained with polyol cures. The use of most amines is limited because they are just too fast. Aromatic amines further hindered with halogens give usable pot life, but the halogen containing monomers from which they are made are very toxic, while the hardeners themselves are usually regulated as carcinogens.
Poly-Cure 1000 is a halogen free high performance hardener with usable pot life. As a bonus, Poly-Cure 1000 gives urethanes with better abrasion resistance, and both better solvent and better water resistance than urethanes made with the halogen containing amine hardeners.
Poly-Cure 1000 is provided in an unique form
Poly-Cure 1000 is a tan to yellow solid, and is provided in a unique semi-granular form somewhat like freeze-dried coffee. These Poly-Cure 1000 granules are actually composed of tiny dust-like particles. Because of this unique semi-granular form, many new ways to use Poly-Cure 1000 become possible. The Poly-Cure 1000 can be sheared directly into a liquid without melting, or even grinding.
PTM&W Industries offers several formulated Poly-Cure 1000 dispersion hardeners, such as PH7350 and PH7395, for those who desire the convenience of a ready made hardener.
Poly-Cure 1000 is for the tough jobs
Since urethanes can be formulated over such a wide range of hardness, they can be used to replace everything from soft rubbers to hard plastics. In general, the wear and tear of a urethane will outperform the wear and tear of its’ conventional counterpart. To a large extent, wear and tear of urethanes is so good that they are the only plastic of choice for things like solid truck tires, cutting and metal forming pads, and many kinds of rolls. Among urethanes the very best wear and tear only comes from the use of amine hardeners. Among these amines, Poly-Cure 1000 gives urethanes with the highest abrasion resistance.
Have a nightmare application like the sonar window for an atomic submarine? Because Poly-Cure 1000 imparts both better solvent and better water resistance than urethanes made with the other amine hardeners, it is what they use to do just that.
Need a urethane, and are you worried about cold and vibration on something like the Saturn Rocket? Urethanes made from Poly-Cure 1000 maintain elongation at cryogenic temperatures better than the urethanes made with the other amine hardeners.
An important Poly-Cure 1000 application is in spray urea/urethane coatings. Here Poly-Cure 1000 again contributes wear and tear plus water and solvent resistance.
You can use Poly-Cure 1000 as an ingredient
While Poly-Cure 1000 can be melted or milled directly into an isocyanate terminated prepolymer and immediately cured to make parts, more commonly it is used as a hardener ingredient in a two-part formula. In order to realize maximum benefits from Poly-Cure 1000 you may need to adjust your formula or process somewhat.
Poly-Cure 1000 is a solid aromatic amine with a mild pleasant odor, and, as used in urethanes, has a functionality of 2, and an equivalent weight of 155. Using 92% of the theoretical amount, or 1.08 NCO for every 1 NH, of Poly-Cure 1000 tends to give the best overall properties when it is used as the sole curing agent. When it is used as an ingredient in a formula it is best to use the more normal NCO to OH/NH ratios of 1.02-1.05 to 1.
The melting point of Poly-Cure 1000 itself is 275°F. It will melt into most liquids at far lower temperatures, with some liquids as low as 150°F. Stable Poly-Cure 1000 loadings of 10-15% can be made in polyester polyols, polyether polyols, castor oil, or plasticizers. With higher loadings of Poly-Cure 1000 crystallization will occur in a few hours or days at room temperature, but stable high loadings can still be made by just dispersing the solid Poly-Cure 1000 into a liquid. Very nice semi-fluid paste hardeners with high Poly-Cure 1000 loading can be made by milling.
Usually catalysts are required in urethanes to adjust pot life or cure time. Metallic carboxylates as used with polyols will not speed the cure of Poly-Cure 1000, but the carboxylic acids themselves are very effective catalysts. Generally the weaker the acid, the stronger the catalytic effect. For example: Oleic Acid is a powerful catalyst for Poly-Cure 1000. PTM&W Industries can also provide proprietary catalysts for Poly-Cure 1000.