Polylite™ ZC-33 Unsaturated Polyester Resin

Chemical/Physical Nature

ZC-33 gel coat resin is an isophthalic natural unsaturated polyester gel coat resin with isophthalic acid, maleic anhydride and standard diols as main raw materials. It has been dissolved in styrene cross-linking monomer, contains thixotropic additives, has high viscosity and medium reactivity.

Benefits and Application

ZC-33 resin has good strength and toughness, small shrinkage, and good product transparency. It is suitable for making surface decorative layers and protective layers of various ordinary fiberglass products by brushing process.

Liquid Resin Typical Properties

Unfilled Castings Typical Properties

Application Guidelines

1. ZC-33 Gel coat resin does not contain wax and accelerator, but contains thixotropic additive.
2. The mold should be treated in a standardized manner before use to meet the requirements of gel coat construction.
3. Color paste recommendation: active color paste for gel coat, 3-5%. The compatibility and hiding power of the color paste should be confirmed by on-site tests.
4. Recommended curing system: MEKP, 1.5~2.5% for gel coat curing agent: 0.5~2% for gel coat accelerator. Confirm by on-site tests during application.
5. Recommended gel coat dosage: wet film thickness 0.4~0.6mm, dosage 500~700g/m? Gel coat is too thin and prone to wrinkling or bottom exposure, too thick and prone to sagging, cracks or sand holes, uneven thickness and prone to wrinkling or local discoloration, etc. 6. When the gel coat is gelled to the point where it is not sticky, the next process (upper reinforcement layer) is made. If it is done too early or too late, it is easy to cause problems such as wrinkling, fiber exposure, local discoloration or delamination, self-separation from the mold, cracks, and fissures.

Package

Net weight 220 kilograms, metal drum.Please contact us.