Unsaturated Polyester Resin (UPR)
30 products
Automotive SMC UPR
CAS 26455-61-8
Precise MgO thickening profile for 3-5 day SMC maturation
Chemical/Corrosion-Resistant UPR
CAS 26455-61-8
High chemical and corrosion resistance across broad pH range
Construction FRP Profile UPR
CAS 26455-61-8
Optimized for pultrusion of structural construction profiles
DCPD High-Stiffness UPR
CAS 68411-01-8
Highest modulus in the DCPD UPR product range (4.5-5.0 GPa)
DCPD-Modified UPR (Low Cost)
CAS 68411-01-8
Lower material cost due to DCPD modification
Filament Winding Grade UPR
CAS 26455-61-8
Low viscosity (150-300 mPa·s) for efficient fiber wet-out in bath
Fire Retardant UPR for Marine
CAS 26455-61-8
IMO FTP Code Part 5 & 6 compliant fire performance
Flexible/Rubber-Toughened UPR
CAS 26455-61-8
3-5× higher elongation at break versus standard UPR
Food-Contact Compliant UPR
CAS 26455-61-8
Compliant with EU 10/2011 and FDA food contact regulations
General Purpose Orthophthalic UPR
CAS 26455-61-8
Cost-effective general-purpose formulation
Halogenated Flame Retardant UPR (HET Acid)
CAS 26455-61-8
Reactive halogen flame retardancy — permanent, non-leachable
High-Reactivity UPR (Fast Cure)
CAS 26455-61-8
Gel time 8-15 min for rapid production cycle
Isophthalic NPG UPR (Premium Marine)
CAS 26455-61-8
Highest water resistance in the UPR family (NPG modification)
Isophthalic UPR (Marine Grade)
CAS 26455-61-8
Superior hydrolytic resistance versus orthophthalic grades
Low Styrene UPR (<35% Styrene)
CAS 26455-61-8
Styrene content below 35% wt for OEL compliance
Low-Shrinkage UPR
CAS 26455-61-8
Shrinkage 1-3% vs. 6-10% for standard UPR
Phosphorus Flame Retardant UPR (Non-Halogen)
CAS 26455-61-8
Halogen-free — no HCl or dioxin on combustion
Pipe and Tank Grade UPR
CAS 26455-61-8
Qualified to AWWA C950, ASTM D2992, ISO 14692
Pre-Accelerated UPR (Cobalt, Ready-to-Use)
CAS 26455-61-8
Pre-dissolved cobalt accelerator — add MEKP and use
Pultrusion Grade UPR
CAS 26455-61-8
Low viscosity for fast fiber wet-out
RTM / Vacuum Infusion UPR (Low Viscosity)
CAS 26455-61-8
Ultra-low viscosity (100-250 mPa·s) for complete preform penetration
Resin Transfer Molding (RTM) UPR
CAS 26455-61-8
Low viscosity at injection temperature for complete preform fill
SMC/BMC Grade UPR
CAS 26455-61-8
High acid value for effective MgO/Mg(OH)2 thickening
Spray-Up Grade UPR
CAS 26455-61-8
Low viscosity for clean spray-up gun atomization
Styrene-Free UPR (DMST Reactive Diluent)
CAS 26455-61-8
Zero styrene — eliminates primary occupational inhalation risk
Thixotropic Hand Lay-up UPR
CAS 26455-61-8
High thixotropy (TI 3-6) prevents sag on vertical surfaces
Transparent Casting UPR
CAS 26455-61-8
High optical clarity — water-white color and >85% transmittance
UV-Stabilized Outdoor UPR
CAS 26455-61-8
Pre-loaded UV absorber + HALS dual stabilization package
Vacuum Infusion Grade UPR
CAS 26455-61-8
Ultra-low viscosity (80-180 mPa·s) for large-structure infusion
Wind Energy Blade UPR
CAS 26455-61-8
Optimized fatigue resistance for 20+ year blade life