High Strength Orthophthalic Resin Overview

Orthophthalic resin is a premium orthophthalic unsaturated polyester resin (commonly known as Ortho UPR) specifically formulated for high-efficiency pultrusion. As a reliable general purpose FRP resin, it exhibits excellent wet-out properties with glass fibers, resulting in minimal voids and thorough impregnation.

Finished structural components boast high mechanical strength, superior toughness, and a smooth surface finish. Delivering fundamental weather and corrosion resistance, this cost-effective pultrusion resin ensures products remain free from deformation during prolonged use. It serves as the ideal specialized matrix for the stable mass production of fiberglass profiles, cable trays, angle bars, municipal guardrails, and electrical insulation components.

Supply Chain & Manufacturing Value

Whether producing standard structural shapes or managing high-volume industrial distribution, PLM-3016 provides an unbeatable balance of performance and economy:

• For Pultrusion Manufacturers: Engineered as a fast curing orthophthalic resin with excellent wettability, it maximizes production line speeds while virtually eliminating dry-fiber defects.

• For Industrial Parts Suppliers: Provides the structural backbone needed for heavy-duty applications, acting as the perfect fiberglass I-beam resin matrix and cable tray fiberglass resin.

• For Infrastructure Contractors: Offers reliable moisture and electrical resistance, meeting the foundational requirements for municipal guardrails and PV mounting supports.

• For Regional Distributors: As a leading unsaturated polyester resin supplier, POLYMER ensures batch-to-batch consistency and competitive wholesale pricing to protect your margins.

High Strength Orthophthalic Resin Core Advantages

Excellent Impregnation

Rapid and thorough saturation of glass fibers, resulting in minimal voids and dense, solid finished products.

Rapid and Uniform Curing

Optimized for high-speed continuous pultrusion lines, ensuring stable molding processes and high production efficiency.

Moderate Viscosity

Perfectly tuned viscosity level (approx. 500 mPa·s) as a good wet-out UPR for pultrusion, preventing resin runoff.

Structural High Strength

Engineered as a high strength pultrusion resin, delivering robust load-bearing capabilities for angle bars and I-beams.

High Strength Orthophthalic Resin Specifications

Note: Gel time at 25 °C: Add 2.0g of 1% cobalt accelerator and 2.0g of M50 (AKZO-Nobel) to 100g resin.

Resin Casting Properties (Typical Values)

Curing conditions: Room temperature curing for 24 hours; post-curing at 40 °C, 60 °C and 80 °C for 2 hours respectively.
Test conditions: 23±2 °C, relative humidity 50±6 %.

Liquid Resin Properties (Typical Values)

High Strength Orthophthalic Resin Application

FAQ

Instructions for Use and Storage Conditions

Orthophthalic resin contains no accelerator. A suitable amount of accelerator and curing agent must be added according to operating environment and requirements before use. During application, control the moisture content of glass fiber, fillers, and pigment paste.

Store the resin in original unopened packaging in a dry indoor area below 25 ℃ before use.

Elevated temperature and light exposure will significantly shorten shelf life. Keep away from direct sunlight and heat sources.

Styrene-containing unsaturated polyester resin is flammable. Store away from open flames. Refer to the Safety Data Sheet (SDS) for details.