Why Choose Orthophthalic Resin?
Orthophthalic resins are the industry standard for general purpose applications, offering excellent cost-effectiveness and reliable performance across diverse industries.
Cost Effectiveness
Orthophthalic resins offer excellent value for money, making them ideal for cost-sensitive applications.
Easy Processing
Excellent processing characteristics with predictable curing behavior and good workability.
Versatile Performance
Suitable for a wide range of general purpose applications with reliable mechanical properties.
Orthophthalic Resin Value Proposition
Our Orthophthalic Resin Products
Comprehensive range of orthophthalic polyester resins for cost-effective general purpose applications
Orthophthalic Resin Applications
Discover how our orthophthalic resins provide reliable performance across diverse industries
Artificial Stone & Countertops
High Volume ProductionQuartz stone slabs, engineered stone, kitchen countertops
Recommended Products:
Marine & Boat Building
Marine GradeBoat hulls, marine structures, water sports equipment
Recommended Products:
Construction & Building
Construction GradeDaylighting panels, roofing sheets, architectural elements
Recommended Products:
General Composites
General PurposePultrusion profiles, hand lay-up parts, general FRP
Recommended Products:
Processing Methods
Our orthophthalic resins are optimized for various manufacturing processes
Hand Lay-up
Manual fiber placement with good workability
Suitable Products:
Process Advantages:
Casting
Mold casting for artificial stone and solid surfaces
Suitable Products:
Process Advantages:
Pultrusion
Continuous fiber reinforced profiles
Suitable Products:
Process Advantages:
Spray-up
Spray application for large surfaces
Suitable Products:
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Technical Specifications
Comprehensive technical data for our orthophthalic resin product range
Frequently Asked Questions About Orthophthalic Resin
Key technical and purchasing information for general-purpose ortho resins
What is orthophthalic polyester resin used for?
Orthophthalic resin (ortho resin) is the industry standard, general-purpose unsaturated polyester resin. It is widely used in fiberglass reinforced plastics (FRP), hand lay-up boat hulls, daylighting panels, cooling tower components, automotive body parts, and artificial stone casting due to its excellent balance of cost, mechanical properties, and ease of cure.
How does orthophthalic resin differ from isophthalic resin?
Orthophthalic resins are synthesized with phthalic anhydride and offer the most economical solution for ambient and moderate-duty composite manufacturing. Isophthalic resins use isophthalic acid, offering higher chemical resistance, heat deflection temperatures, and water resistance for demanding marine or chemical environments.
What packaging options and minimum order quantities do you provide?
We supply orthophthalic resin in 220kg steel drums and 1000kg IBC tanks for bulk industrial buyers, as well as 20kg pails for sampling. We provide global export shipping with full TDS, COA, and export documentation.