adhesive sealant additives

ST-AddBond LTK

ST-AddBond LTK is a Modified polyester (60% in xylene, low Tg)-based Adhesion promoter. 2025 launch

adhesive sealant additives

ST-AddBond LTK-B

ST-AddBond LTK-B is a Modified polyester (60% in butyl acetate, low Tg)-based Adhesion promoter. 2025 launch

adhesive sealant additives

ST-AddBond LTW

ST-AddBond LTW is a Modified polyester (60% in xylene)-based Adhesion promoter for industrial coating and ink formulations.

adhesive sealant additives

ST-AddBond LTW-B

ST-AddBond LTW-B is a Modified polyester (60% in butyl acetate)-based Adhesion promoter for industrial coating and ink formulations.

adhesive sealant additives

Silane Adhesion Promoter A-174

CAS: 2530-85-0

Silane Adhesion Promoter A-174 is a high-performance specialty chemical additive widely used in industrial coating, adhesive, and material applications. Provides excellent performance characteristics and reliability.

adhesive sealant additives

Silane Coupling Agent A-1100 (γ-Aminopropyltriethoxysilane, APTES)

CAS: 919-30-2

Silane Coupling Agent A-1100 (KH-550, APTES) is an amino-functional silane widely used to improve adhesion between epoxy, polyurethane, and phenolic resins and inorganic substrates. The primary amine group reacts directly with epoxy resins as a co-curing agent while the triethoxysilyl group bonds to glass, silica, and metal oxide surfaces. A-1100 is a standard treatment for glass fiber sizing, mineral filler surface modification, and metal primer applications.

adhesive sealant additives

Silane Coupling Agent A-174 (γ-Methacryloxypropyltrimethoxysilane, MPS)

CAS: 2530-85-0

Silane Coupling Agent A-174 (KH-570, MPS) is a methacrylate-functional silane used to improve adhesion between UV-curable, acrylic, and unsaturated polyester resins and inorganic substrates. The methacrylate group copolymerizes with acrylic monomers during UV or peroxide cure while the trimethoxysilyl group bonds to glass, silica fillers, and metal surfaces. It is widely used in UV adhesives, acrylic sealants, dental composites, and glass fiber-reinforced polymer composites.

adhesive sealant additives

Silane Coupling Agent A-187 (γ-Glycidoxypropyltrimethoxysilane)

CAS: 2530-83-8

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.

adhesive sealant additives

Silicone RTV Sealant Base

CAS: 63148-62-9

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.

adhesive sealant additives

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

CAS: 70131-67-8

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.

adhesive sealant additives

Silicone-Free Wetting Agent for Adhesives

CAS: 28519-02-0

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.

adhesive sealant additives

TPGDA (Tripropylene Glycol Diacrylate) Reactive Thinner

CAS: 42978-66-5

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.

adhesive sealant additives

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

CAS: 75980-60-8

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.

adhesive sealant additives

Terpene Resin Tackifier (β-Pinene Based)

CAS: 9003-74-1

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.

adhesive sealant additives

Titanate Coupling Agent for Adhesives (Isopropyl Titanate)

CAS: 546-68-9

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.

adhesive sealant additives

Vinyltriethoxysilane (VTES) Moisture Scavenger

CAS: 78-08-0

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.

adhesive sealant additives

m-Xylylenediamine (MXDA) Curing Agent

CAS: 1477-55-0

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.