Orthophthalic Polyester Resin
Cost-Effective & Versatile General Purpose Resin
Standard-grade unsaturated polyester resin for a wide range of industrial, marine, and construction applications.
What is Orthophthalic Resin?
Orthophthalic polyester resin (commonly known as ortho resin) is the standard grade of unsaturated polyester resin used in the composites industry.
It offers a cost-effective solution for general-purpose applications where extreme chemical resistance or high heat distortion temperatures are not required.
Changyuan New Materials provides high-quality ortho resins suitable for hand lay-up, spray-up, and casting processes, widely used in marine, construction, and automotive parts.
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Why Choose Orthophthalic Resin?
Proven performance characteristics that make ortho resin the industry standard
Cost-Effective Solution
Excellent balance of performance and affordability, making it ideal for a wide range of general-purpose applications.
Easy Processing
Good workability with excellent fiber wetting properties, suitable for various fabrication methods including hand lay-up, spray-up, and molding.
Versatile Applications
Suitable for diverse industries from marine and automotive to construction and consumer goods.
Good Mechanical Properties
Reliable tensile and flexural strength for standard FRP applications, with excellent toughness and impact resistance.
Stable Quality
Consistent batch-to-batch performance with predictable curing characteristics and reliable processing windows.
Wide Product Range
Comprehensive portfolio covering general purpose, marine, translucent, molding, and specialty applications.
Major Applications
Versatile uses across industries
Product Categories
Our Range of Orthophthalic Resins
General Purpose
Versatile resins for hand lay-up and spraying.
ZY-189
Standard GP Resin
ZY-959
Thixotropic, Pre-accelerated
Translucent / Roofing
High clarity resins for skylights and sheets.
ZY-8086
UV Stabilized, High Clarity
ZY-196
Weather Resistant
Molding & Casting
Specialized for buttons, crafts, and furniture.
ZY-191
Button Grade
ZY-600 Series
Furniture Coating (DCPD)
Furniture Coating Solutions (DCPD Series)
Our ZY-600 series utilizes DCPD (Dicyclopentadiene) modification technology to achieve superior wood finishing properties.
- High Gloss & Fullness: Creates a premium glass-like finish on wood surfaces.
- Excellent Sandability: Cures to a hard surface that doesn't clog sandpaper, speeding up production.
- Rapid Air Drying: Optimized drying times for automated coating lines.
| Grade | Type | Topics.Orthophthalic.FurnitureCoating.table.chars | Best Application |
|---|---|---|---|
| ZY601 | DCPD Modified | High gloss, excellent sandability | Primer & Topcoat |
| ZY602 | DCPD Standard | Excellent leveling, high transparency | High-gloss Clear Coat |
| ZY602-1 | DCPD Enhanced | Improved hardness (>2H) and scratch resistance | Tabletops & Surfaces |
| ZY603 | Refined DCPD | Superior clarity, low odor | Premium Furniture |
| ZY604 | DCPD Sanding | Optimized for easy sanding, fast powdering | Sealer / Primer |
| ZY-605 | DCPD Tough | High flexibility, impact resistant | Curved Surfaces / Chairs |
| ZY609 | DCPD Premium | Ultimate gloss retention, yellowing resistant | High-end Export Furniture |
Orthophthalic vs Isophthalic Resin
Understanding when to choose ortho resin for your application
| Property | Orthophthalic Resin | Isophthalic Resin |
|---|---|---|
| Cost | Lower - Excellent Value | Higher |
| Chemical Resistance | Good | Excellent |
| Heat Deflection Temp (HDT) | 60-80°C (up to 100°C for NPG types) | 90-120°C |
| Water Resistance | Good | Superior |
| Processing | Easy - Excellent Workability | Good |
| Availability | Widely Available | Available |
| Best For | General Purpose Applications | Demanding Applications |
Frequently Asked Questions
Common queries about Orthophthalic Resins
What is the difference between Ortho and Iso resin?
Ortho resins are cost-effective general-purpose resins, while Iso resins use isophthalic acid for superior chemical and water resistance.
Can I use Ortho resin for boat building?
Yes, Ortho resins are widely used for general marine parts. However, for hulls and wet areas subject to osmosis, an Iso resin or Vinyl Ester skin coat is recommended.
What is the shelf life of these resins?
Typically 6 months when stored in a cool, dry place below 25°C and away from direct sunlight.
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