Overview
ZC-5717 is an unsaturated polyester resin built from phthalic anhydride, maleic anhydride, and standard diols, dissolved in the styrene cross-linking monomer, part of the Polylite product line in our resin range. It has high viscosity and high reactivity, offers light color, good stability, strength, and toughness, and is supplied with supply chain resource support for formulators sourcing a BMC-grade unsaturated polyester resin.
Specification
| Appearance | Light yellow transparent viscous liquid |
| Acid Value | 14-22 mgKOH/g (GB/T 2895-2008) |
| Viscosity, 25℃ | 1.6-2.3 Pa.s (GB/T 7193-2008) |
| Solid Content | 70-76% (GB/T 7193-2008) |
| Gel Time, 25℃ | 8.5-10.5 min (GB/T 7193-2008) |
| Thermal Stability, 80℃ | ≥24 h (GB/T 7193-2008) |
| Responsiveness Gel Time | 40-120 s (GB/T 24148.6-2009) |
| Responsiveness Curing Time | 100-180 s (GB/T 24148.6-2009) |
| Responsiveness Exothermic Peak | 225-265℃ (GB/T 24148.6-2009) |
Applications of ZC-5717 in BMC Molding
This resin is suitable for making BMC (Bulk Molding Compound) manhole covers, traffic guardrail bases, and other special molded products. Its high solid content and defined responsiveness profile, including gel time, curing time, and exothermic peak, give formulators the reactivity data needed to plan compression or transfer molding cycles.
Why the High-Reactivity Chemistry Matters
Because this resin is built from phthalic anhydride, maleic anhydride, and standard diols with high viscosity and high reactivity, it is formulated to deliver light color, good stability, strength, and toughness in BMC molded parts. The acid value range of 14-22 mgKOH/g and solid content of 70-76% give formulators reference points for evaluating batch-to-batch consistency before scaling a molding run.
Why Sourcing Consistency Matters for Buyers
Because responsiveness parameters such as gel time, curing time, and exothermic peak directly affect molding cycle time and part quality, buyers should confirm current specifications for this resin against the latest technical data sheet before scheduling a production run. A supplier that consistently delivers this resin within its stated responsiveness range reduces the need to re-qualify a BMC molding recipe with every new batch.
This is particularly relevant for manufacturers of manhole covers and traffic guardrail bases, where curing time and exothermic peak are directly tied to molding throughput and part strength. Buyers should confirm current batch documentation against the latest technical data sheet before finalizing a production schedule.
What to Consider When Sourcing ZC-5717
Buyers evaluating ZC-5717 for the first time should confirm that its responsiveness gel time (40-120 s), curing time (100-180 s), and exothermic peak (225-265℃) match their molding line’s cycle time and process temperature requirements. Requesting the current certificate of analysis alongside the technical data sheet is a practical way to confirm that a given batch matches the specifications listed above.
Packaging, storage temperature requirements, and shelf life should also be confirmed directly with the supplier, since these factors affect how this resin performs once it reaches a production facility. Buyers sourcing this resin for time-sensitive production schedules should discuss lead time and logistics requirements before finalizing an order.
General Handling and Storage Guidance
As with other unsaturated polyester resins, this product should be stored in accordance with the supplier’s technical data sheet, typically in a cool, well-ventilated area away from direct sunlight and sources of heat or ignition, since elevated storage temperatures can affect the resin’s viscosity and reactivity over time. Personnel handling this material should follow the handling procedures specified in the safety data sheet.
Buyers should request and review the current safety data sheet for this resin prior to receipt, and confirm that on-site storage conditions are compatible with the supplier’s recommended shelf life and temperature range. Proper inventory rotation helps maintain the viscosity and mechanical performance described above.
Where to Source This Product
Thousands Chemicals supplies ZC-5717 and related resin products through our digital B2B marketplace, with supply chain resource support for formulators sourcing unsaturated polyester resins for BMC manhole cover, guardrail base, and general molded product manufacturing. Material testing methods referenced for this resin, including acid value, viscosity, solid content, and thermal stability, are benchmarked against recognized international testing practices published by ASTM International. Our team can help confirm packaging, lead times, and technical documentation for your target application and order volume.
Documentation We Can Provide
For qualified buyers, we can provide the safety data sheet and technical data sheet for the specific batch of this resin being quoted. Specifications listed on this page reflect the manufacturer’s published values; buyers should confirm current documentation before finalizing a purchase order.
FAQ
What is ZC-5717 used for?
It is an unsaturated polyester resin used in BMC (Bulk Molding Compound) applications, including manhole covers, traffic guardrail bases, and other special molded products.
What is the viscosity of ZC-5717?
ZC-5717 has a viscosity of 1.6-2.3 Pa.s at 25℃ (GB/T 7193-2008).
What is the responsiveness profile of ZC-5717?
ZC-5717 has a responsiveness gel time of 40-120 seconds, a curing time of 100-180 seconds, and an exothermic peak of 225-265℃ (GB/T 24148.6-2009).
Can you provide technical documentation and bulk pricing for ZC-5717?
Yes, technical data sheets and SDS documentation are available on request, and our team can provide bulk pricing and lead times based on your target volume and delivery location.
Get a Quote for ZC-5717
Contact our team for pricing, documentation, and lead time on ZC-5717. Our sourcing specialists can help confirm whether this unsaturated polyester resin matches your process requirements before you place an order.
