Hmechem

Curing Agents

119 products

Coatings & Ink Additives

Curing Agents

119 products

119 products

Curing Agents

Silane Coupling Agent A-187 (γ-Glycidoxypropyltrimethoxysilane)

Silane Coupling Agent A-187 (KH-560, GPTMS) is an epoxy-functional silane that acts as a molecular bridge between organic adhesive/coating matrices and inorganic substrates such as glass, metals, and minerals. It significantly improves adhesion, wet durability, and hydrolytic stability in epoxy adhesives, sealants, and composite systems by forming covalent bonds with both the resin and the substrate. A-187 is a standard adhesion promoter in epoxy, polyurethane, and acrylic adhesive formulations.

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Curing Agents

Silicone RTV Sealant Base

Silicone RTV Sealant Base is a high-performance specialty chemical additive widely used in industrial coating, adhesive, and material applications. Provides excellent performance characteristics and reliability.

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Curing Agents

Silicone Sealant Base Polymer (α,ω-Dihydroxy Polydimethylsiloxane)

α,ω-Dihydroxy polydimethylsiloxane (PDMS) is the primary base polymer for room-temperature-vulcanizing (RTV) silicone sealants, offering a unique combination of flexibility, thermal stability (−60 °C to +200 °C), and UV resistance. It crosslinks with silane crosslinkers in the presence of moisture and tin or titanium catalysts to give durable, elastic seals. The polymer backbone is chemically inert, water-repellent, and resistant to ozone and UV degradation.

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Curing Agents

Silicone-Free Wetting Agent for Adhesives

Silicone-free wetting agent based on modified polyether siloxane-free chemistry is used in waterborne and solvent-borne adhesive formulations to improve substrate wetting, reduce surface tension, and enhance adhesion to low-energy substrates. It lowers the dynamic contact angle on plastics, metals, and treated papers, enabling uniform adhesive spreading and eliminating crawling or fisheye defects. Silicone-free grades are preferred in systems where silicone contamination is undesirable, such as automotive painting lines.

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Curing Agents

Sulfur Crosslinker for Rubber

Sulfur Crosslinker for Rubber for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

TAC Crosslinker

TAC Crosslinker for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

TAIC Crosslinker

TAIC Crosslinker for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

TMTM Sulfur Donor

TMTM Sulfur Donor for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

TPGDA (Tripropylene Glycol Diacrylate) Reactive Thinner

TPGDA (Tripropylene Glycol Diacrylate) is a difunctional acrylate reactive thinner with low skin sensitization, fast UV cure response, and low odor, making it one of the most widely used reactive diluents in UV adhesive and coating applications. Its ether-containing backbone imparts flexibility and good adhesion to plastic substrates. TPGDA is favored in UV inkjet, flexographic printing inks, UV adhesives, and flexible coating formulations requiring low migration and reduced sensitization risk.

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Curing Agents

TPO (Diphenyl(2,4,6-trimethylbenzoyl)phosphine Oxide) Photoinitiator

TPO is a highly efficient Type I radical photoinitiator with strong absorption in the near-UV and visible range (up to 420 nm), enabling effective cure through pigmented, thick, or filled adhesive formulations. Its longer wavelength absorption compared to benzophenone-type initiators gives better through-cure in pigmented and white adhesive systems. TPO is widely used in UV adhesives, dental composites, UV inks, and coatings where good depth of cure is critical.

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Curing Agents

TRIM Crosslinker

TRIM Crosslinker for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

Terpene Resin Tackifier (β-Pinene Based)

Terpene Resin is a naturally derived tackifier polymerized from β-pinene monomers sourced from turpentine oil, offering excellent compatibility with natural rubber, EVA, and APAO polymers. It provides outstanding tack, good heat resistance, and a pleasant natural odor profile, making it well-suited for food-contact packaging adhesives and hygiene products. Its renewable origin and light color make it an attractive sustainable alternative to petroleum-based tackifiers.

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Curing Agents

Tetramethylthiuram Disulfide Accelerator

Tetramethylthiuram Disulfide Accelerator for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

Titanate Coupling Agent for Adhesives (Isopropyl Titanate)

Titanate coupling agents are organotitanium compounds used to improve interfacial adhesion between inorganic fillers and organic polymer matrices in adhesive formulations. They reduce filler viscosity, improve wetting of mineral fillers, and enhance the mechanical and thermal performance of the cured adhesive. Titanate coupling agents are particularly effective with calcium carbonate, alumina trihydrate, and other metal oxide fillers in polyolefin-based and filled adhesive systems.

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Curing Agents

Titanate Crosslinker

Titanate Crosslinker for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

UV Curing Agent

UV curing agents—primarily photoinitiators and photosensitizers—generate reactive species such as free radicals or cations upon exposure to ultraviolet light, initiating rapid polymerization and crosslinking of UV-curable resins within seconds. These agents enable energy-efficient, solvent-free cure processes ideal for high-speed production lines in printing, electronics, and wood finishing. Selection of the appropriate UV curing agent depends on lamp spectrum, resin chemistry, and required cure depth.

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Curing Agents

Vinyl Silane Crosslinker

Vinyl Silane Crosslinker for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

Vinyltriethoxysilane (VTES) Moisture Scavenger

Vinyltriethoxysilane (VTES) is a reactive silane used as a moisture scavenger in moisture-sensitive adhesive and sealant formulations, particularly one-component polyurethane and silane-modified polymer (SMP/MS) systems. It reacts rapidly and preferentially with trace water, protecting the reactive NCO or silyl groups from premature cure during storage. VTES also acts as a crosslinker and adhesion promoter in silicone and polyolefin systems.

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Curing Agents

Water-Based Crosslinker Aziridine

Water-Based Crosslinker Aziridine is a high-performance specialty chemical additive widely used in industrial coating, adhesive, and material applications. Provides excellent performance characteristics and reliability.

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Curing Agents

ZDEC Rubber Accelerator

ZDEC Rubber Accelerator for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

Zinc Oxide Crosslinker

Zinc Oxide Crosslinker for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

Zirconium Crosslinker

Zirconium Crosslinker for curing and crosslinking polymer networks, enabling controlled cure profiles and enhanced mechanical, thermal, and chemical properties.

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Curing Agents

m-Xylylenediamine (MXDA) Curing Agent

m-Xylylenediamine (MXDA) is a primary aliphatic/araliphatic diamine curing agent for epoxy resins, offering faster room-temperature cure and higher chemical resistance than purely aliphatic amines. Its benzylic amine structure provides high reactivity, allowing thin-film cure at low temperatures and excellent adhesion to steel and concrete. MXDA is widely employed in corrosion-protective epoxy coatings, marine adhesives, and low-temperature-cure civil engineering grouts.

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