GP5 Brush Type Isophthalic Transparent Gelcoat With High Chemical Resistance

GP5 Brush Type Isophthalic Transparent Gelcoat With High Chemical Resistance

General Features

It is an orthophthalic based unsaturated polyester resin. It has high reactivity and moderate viscosity. Specially developed for cold press and hand lay-up applications. It is suitable for the production of industrial parts and composite parts for the automotive sector with its easy wetting of the fibers, fast curing and high HDT properties. "Polyester Resin" is cured at room temperature by adding "Accelerator (Cobalt Octoate)" and "Catalyst (MEK Peroxide)".


Safety- When working with the BRE XP601CF, take your personal safety precautions in a well-ventilated environment. If necessary, wear a mask and be sure to use suitable gloves. Wear eye protection goggles.

Accelerator Ratio (0.2%)- You should use 2 g of "Accelerator (Cobalt Octoate, 6% solution)" for every 1 kg of "Resin". Since the dosage is sensitive, it is recommended to use a precision scale or kitchen scale. To add accelerator to the resin, you can easily use an injector with the needle removed or a pasteur pipette.

Important - "Catalyst (MEK-P)" must be added in order for the curing reaction of polyester resins to start. Adding "Accelerator (Cobalt Octoate)" alone does not initiate the reaction. Accelerator and catalyst react violently when mixed externally, so they must be added separately into the resin (it is recommended to add the accelerator (Cobalt Octoate) first and then the catalyst (MEK-P)). Special attention should be paid to this issue!

Technical Specifications

  • Viscosity: 70-90 cp
  • Acid Value: 11-16 mgKOH/g
  • Gel Time: 10-15 minutes

1: At room temperature, in Brookfield viscometer, with SP4 spindle at 50 rpm.

2: At room temperature, 100 g gelcoat is used with 1.5 g MEK-Peroxide.

Mechanical Properties of Cured Resin

  • Tensile Strength: 75 MPa (ISO 527)
  • Tensile Modulus: 3.8 GPa (ISO 527)
  • Tension Elongation: 3.5% (ISO 527)
  • Bending Strength: 120 MPa (ISO 178)
  • Bending Modulus: 3.9 GPa (ISO 178)
  • HDT: 90°C(ISO 75A)
  • Hardness: 35 Barcol(934-1)

The samples were further cured at 80°C for 3 hours + 100°C for 1 hour.

WARNING: All information stated is based on scientific and experiential data. This information does not constitute any guarantee and only guides the use of the products in their pure form and within the specified maximum conditions. Tila Composite does not assume any liability for incidents arising from use.

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