Tooling Polyester Resin Isophthalic

Tooling Polyester Resin Isophthalic – High Strength, Low Shrinkage Mold & Tooling Resin

Our Tooling Polyester Resin Isophthalic is a premium, high-performance resin engineered for demanding mold, plug, and tooling fabrication. Formulated with isophthalic polyester chemistry, it offers excellent strength, durability, and heat resistance, making it ideal for professional composite shops and advanced DIY builders who need reliable dimensional accuracy and long tool life.

This resin requires MEKP (Methyl Ethyl Ketone Peroxide) hardener/catalyst to cure (not included). When mixed and processed correctly, it produces tough, stable tooling surfaces with minimal shrinkage and improved heat distortion temperature compared to general-purpose polyester resins.

Key Features

• Extremely tough and durable for long-lasting molds and tooling
• Low shrinkage to maintain part accuracy and sharp detail
• Higher heat distortion temperature for improved thermal performance
• Excellent choice for mold construction, plugs, fixtures, and other demanding composite projects

Product Details

• Isophthalic tooling resin engineered for high strength and heat resistance
• Ideal for fiberglass molds, master plugs, pattern making, and production tooling
• Lower shrink properties help maintain dimensional stability and surface accuracy
• Compatible with standard fiberglass reinforcements and fillers

Usage Notes

• Hardener / catalyst not included – use MEKP (DDM-9 or equivalent) for proper cure.
• Mix and apply according to recommended MEKP percentage and shop conditions.

Shelf Life & Storage

• Approximate shelf life is about 4 months from purchase when stored in a cool, dry area.
• For best results and proper curing, use the resin as soon as possible after purchase.
• Due to its shorter shelf life, this product may ship directly from the manufacturer, which can add about 1–3 business days to lead time.

Shipping Information

• Flammable – ships by ground only.
• If expedited shipping is selected, the difference will be refunded as this product cannot ship by air.

Choose Tooling Polyester Resin Isophthalic when you need a durable, low-shrink, high-temperature tooling resin for composite molds and plugs that delivers professional-quality results.