Additives
Silane coupling agents, LPA, UV stabilizers, tougheners, flame retardants and specialty additives
Silane Coupling Agents
26 products
3-Aminopropyltriethoxysilane (A-1100 / KH-550)
CAS 919-30-2
Primary amine group reacts directly with epoxy resins — ideal epoxy composite coupling agent
3-Aminopropyltrimethoxysilane (KH-540 / APTMS)
CAS 13822-56-5
Trimethoxy groups hydrolyze 3–5× faster than triethoxysilane KH-550 — ideal for waterborne systems
3-Chloropropyltrimethoxysilane
CAS 2530-87-2
Versatile synthetic intermediate — chloro group converts to amine, thiol, azide, or epoxide
3-Glycidoxypropyltrimethoxysilane (A-187 / KH-560)
CAS 2530-83-8
Glycidyl functional group is directly compatible with all epoxy curing chemistry
Low Profile Additives (LPA)
8 products
Hydrogenated Castor Oil Thixotrope (HCO)
CAS 8001-78-3
Natural-origin, bio-based thixotrope — from renewable castor oil feedstock
Organoclay Rheology Modifier (Bentone Type)
CAS 71011-27-3
Organophilic smectite clay — compatible with non-polar and solvent-borne resin systems
Polyethylene Low Shrink Additive (LPA-PE)
CAS 9002-88-4
Void-free shrinkage compensation via PE crystallization expansion — not microvoid formation
Polymeric Thickener for UPR Systems
Transparent viscosity building — no haze in clear UPR casting and coating systems
Defoamers & Air Release Agents
4 products
Air Release Additive for Epoxy Resin Systems
Formulated for epoxy compatibility — no PDMS, no pot life extension, no cloud point
Defoamer for Waterborne Systems
Silicone-free — no surface contamination
Silicone Defoamer for UPR / VER Systems
Rapid bubble collapse and air release in UPR/VER at 100–1000 ppm dosage
Silicone-Free Defoamer for UPR / Gelcoat Systems
Zero silicone — eliminates fisheye, cratering, and paint adhesion failure risk
UV Stabilizers & Absorbers
5 products
HALS UV Stabilizer (Tinuvin 770 Type, Bis-TEMPO Sebacate)
CAS 52829-07-9
HALS mechanism: catalytic radical scavenging — regenerated, not consumed like UV absorbers
Polymeric HALS UV Stabilizer (High MW, Low Volatility)
CAS 65447-77-0
Very low migration and volatility — remains active in composite matrix throughout service life
UV Absorber Benzophenone Type (BP-4 / BP-12)
CAS 131-57-7
Most economical UV absorber for composite gelcoat and laminating resin applications
UV Absorber Benzotriazole Type (Tinuvin 328 Type)
CAS 25973-55-1
Benzotriazole UV absorber — strong 300–380 nm absorption for polyester gelcoat protection
Toughening Agents
5 products
ATBN Amine-Terminated Rubber Toughener for Epoxy
CAS 68891-97-4
Terminal amine groups react directly with epoxy in amine-cured systems — no catalyst needed
CTBN Liquid Rubber Toughener for Epoxy
CAS 68891-97-4
Reactive liquid rubber — carboxyl groups bond covalently to epoxy matrix during cure
Core-Shell Rubber Toughener (CSR Powder for Epoxy)
Pre-formed particles — toughening independent of cure temperature and chemistry
Nano Rubber Toughener Dispersion for Epoxy
Nano scale (50–200 nm) — effective in highly crosslinked epoxy where CSR/CTBN cannot toughen
Flame Retardant Additives
6 products
Ammonium Polyphosphate Phase II (APP II, Microencapsulated)
CAS 68333-79-9
High MW Phase II: much lower water solubility than Phase I — suitable for outdoor use
DOPO Reactive Phosphorus Flame Retardant for Epoxy
CAS 35948-25-5
Reactive FR — bonds covalently into epoxy network, no migration or leaching
Expandable Graphite Flame Retardant (Intumescent Graphite)
CAS 7782-42-5
Rapid intumescent expansion (300–500x volume) creates insulating char barrier on fire
Red Phosphorus Masterbatch (Microencapsulated, Halogen-Free FR)
CAS 7723-14-0
Highest P-content FR (100% P) — UL 94 V-0 at lowest loading of any additive FR
Wetting & Dispersing Agents
4 products
Dispersing Agent for Mineral Fillers in Thermoset Resins
Reduces viscosity of high-filler-loading thermoset compounds by 50–80%
Paraffin Wax Solution (Styrene Suppressant / Air Inhibition Barrier)
CAS 8002-74-2
Eliminates surface tack in open-mold UPR curing — allows tack-free, sandable surface
Styrene Suppressant Additive Blend
50–80% styrene emission reduction vs. standard UPR — OSHA compliance support
Wetting and Penetrating Agent for Glass Fiber Composites
Reduces resin surface tension — lowers contact angle with glass fiber for faster wet-out
Color Pastes & Pigments
4 products
Black Color Paste — Carbon Black in UPR/Epoxy (Universal)
CAS 1333-86-4
Pre-dispersed carbon black — consistent jetness and color strength without milling
Red Color Paste — Iron Oxide / Organic Red (Universal UPR/Epoxy)
CAS 1309-37-1
Iron oxide red: outstanding outdoor durability, heat stability to 300°C, no migration
White Color Paste — TiO₂ in UPR/Epoxy (Universal)
CAS 13463-67-7
Pre-dispersed paste — no grinding needed, consistent color development
Yellow Color Paste — Iron Oxide / Organic Yellow (Universal UPR/Epoxy)
CAS 51274-00-1
Iron oxide yellow: outdoor durability, heat stable to 177°C, non-toxic for industrial use