Superior Pultrusion Resin Systems

Industrial-grade resins optimized for high-volume pultrusion of structural profiles. We offer a complete range of polyester and PU resins for pultrusion, engineered for maximum line efficiency and exceptional mechanical finish.

Unmatched Process Stability and Profile Quality

Lechi pultrusion resins are developed to meet the rigorous demands of continuous profile manufacturing. These resins feature low viscosity for instant fiber impregnation and a controlled exothermic reaction to prevent internal cracking in thick-walled sections. Our formulations minimize die friction and mold build-up, significantly extending tool life and reducing downtime. Whether you are producing rebar, ladder rails, or large structural I-beams, Lechi pultrusion resins provide the consistency needed for 24/7 automated production.

Fast and complete fiber wet-out
Low internal stress and shrinkage
Superior surface smoothness and gloss
High production speeds with consistent curing
Thermal stability for consistent die release

Quick Stats

Product Models:5
Chemistry:UPR

Application Fields

Tent polesmosquito net polesHigh-strength rods and profilesPultruded profilesSolid rodsthick section profilesHigh heat-resistantcorrosion-resistant parts

Precision-Engineered for Continuous Flow

Optimized Cure Kinetics

The narrow peak exotherm prevents thermal shock and cracking, even in complex profiles with varying thicknesses.

Internal Release Synergy

Compatible with advanced internal release agents to ensure low pulling tension and minimal die wear over long production runs.

Mechanical Integrity

High tensile and flexural modulus ensure that pultruded components meet the most demanding structural codes in construction and infrastructure.

Processing Compatibility

Manufacturing Process Compatibility

Our Pultrusion Resins series is meticulously formulated to integrate seamlessly into your existing manufacturing infrastructure, from high-precision molding to heavy-duty winding.

Filament Winding
Pultrusion
SMC/BMC Molding
RTM/Infusion
Viscosity
Optimized
Flow control
Gel Time
Adjustable
Work life
Shrinkage
Low Rate
Precision
Storage
3-6 Months
Shelf life

Pultrusion Resins Specifications

Complete technical data for our pultrusion resins lineup. Select the model that best fits your industrial requirement.

ModelChemical TypeViscosity (mPa·s)Gel Time (min)Molding ProcessApplication FieldCharacteristics
LC-5002
Orthophthalic
500-700
8-15
Pultrusion
Tent poles, mosquito net poles
General purpose
LC-5003
Orthophthalic
600-650
4-6
Pultrusion
High-strength rods and profiles
High rigidity, fast pultrusion
LC-5005
Orthophthalic
450-750
6-9
Pultrusion
Pultruded profiles
High toughness
LC-5015
Orthophthalic
450-750
2.5-4.5
Pultrusion
Solid rods, thick section profiles
High modulus, high strength
LC-5017
Isophthalic
400-550
10-16
Pultrusion
High heat-resistant, corrosion-resistant parts
High strength, weather resistance
Brand Strength

Why Global Industry Leaders
Choose Lechi Composites

1

Quality Assurance

Every batch undergoes rigorous testing in our ISO-certified facilities to ensure consistent mechanical properties.

2

R&D Innovation

Our technical team continuously refines chemical formulations to meet evolving international standards.

3

Reliable Supply Chain

Global production capacity of 600,000 tons provides stability for your large-scale projects.

LECHI
20+
Years Excellence

"Global Quality.
Professional Service."

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Maximum Throughput, Minimum Waste

Let our pultrusion experts help you optimize your die temperatures and line speeds for peak efficiency.