Low Shrinkage Polyester Tooling Resin Overview

The resin's viscosity is optimally calibrated for the spray-up process, offering moderate flow characteristics that prevent sagging or excessive buildup. It rapidly and thoroughly wets out reinforcing materials—such as fiberglass cloth and mat—and effectively facilitates the release of trapped air bubbles, thereby preventing defects such as voids, delamination, and pinholes in the finished product. The resulting molded parts exhibit a dense internal structure and a smooth, uniform surface finish. Furthermore, the curing process is gradual and generates low exothermic heat, minimizing the risk of issues such as cracking or warping. Once cured, the material demonstrates excellent mechanical strength, toughness, and resistance to both weathering and chemical corrosion, enabling it to withstand prolonged exposure to outdoor environments and common chemical media.

PLM-102 by POLEMA is a professional-grade low shrinkage polyester tooling resin specifically formulated for hand lay-up and spray-up mold fabrication. As a leading supplier, we deliver this high-performance tooling resin to global fabricators to prevent warping and ensure outstanding dimensional stability.

Low Shrinkage Polyester Tooling ResinCore Performance Advantages

Low viscosity

Pre-promoted and thixotropic

Highly convenient to use

Features a reasonable gel time, high application tolerance, and ease of operation, requiring no complex equipment.

Low Shrinkage Polyester Tooling Resin Specifications

Note: Gel time at 25℃: Add 1.5 g M50 (AKZO-Nobel) to 100 g resin.

Cast Resin Properties (Typical Values)

Curing conditions: Room temperature curing for 24 hours, post-curing at 40℃, 60℃ and 80℃ for 2 hours each.
Test conditions: Temperature 23±2℃, relative humidity 50±6%.

Liquid Resin Properties (Typical Values)

Low Shrinkage Polyester Tooling Resin Application

FAQ

Instructions for Use and Storage Conditions

102 resin contains accelerator and is thixotropic. Thixotropic agent may settle occasionally; stir gently before use to redistribute evenly

Before use, store the resin in its original package (avoid opening or damaging the drum) in a dry indoor area below 25℃.

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

Unsaturated polyester resin containing styrene is flammable. Keep away from open flames during storage. Refer to the Safety Data Sheet.