System 4500 Infusion Epoxy Resin - Clearance

Same Day Shipping

For orders placed before 2:30 p.m. ET


  • Item
  • Description
  • Price
  • Qty
  • CC-06555
  • CC-06555
    40 Min Cure - Gallon - Expired Shelf Life
  • $155.97


Low Viscosity Infusion Epoxy

Our System 4500 is a low viscosity epoxy system designed for the fabrication of parts and structures by the resin infusion method. This system flows extremely well, and produces dense, void-free laminates. The superior cured properties of this system produce items with good strength and toughness with excellent long-term stability. Combine this resin system with any of our Carbon Fiber, Kevlar or most fiberglass fabrics for lightweight, superior-strength composite parts.

This Infusion Epoxy System is available with two hardener options, a 40 minute pot life and a 70 minute pot life. The two hardener options are identical except for reaction time, so no matter which hardener is chosen, you can expect the same high performance properties. The mixed viscosity with both hardeners allows the material to flow very well, even in thin walled areas. It penetrates heavy fabric sections and wets out quickly for further ease of production.

Both hardeners will cure completely at room temperature, if required. The material will gel hard overnight at ambient temperatures around 77°(F). At this point in the cure, the bag and infusion materials can be removed from the laminate and the part can be sanded or trimmed as required. Full cure with these two hardeners will be achieved in 4 to 6 days at normal room temperature. A heat cure will shorten the curing time of System 4500 Infusion Epoxy. In situations where the laminate can be placed in an oven after a room temperature gel, curing times of 8 to 10 hours at 180°F or 14 to 18 hours at 150°F will provide 90% of full cured properties.


  • Will cure completely at room temperature, if necessary.
  • Mixed viscosity around 300 centipoise, so resin flows easily.
  • This epoxy system does not contain methylene dianiline (MDA), or any other potentially harmful aniline derivatives.
  • Two hardener options to fit your project needs.


  • Allow material to gel completely prior to removal from mold.
  • Add heat to decrease post-gel cure times to as little as 8-10 hours.


Mix Ratio  4:1 (Resin:Hardener)
Pot Life 4570 - 70 Min
  4540 - 40 Min
Color Light Amber


All Clearance Corner inventory is controlled and maintained through this website. Therefore, all Clearance Corner items must be ordered through this website (No phone / fax / email orders permitted). Each Clearance Corner product is available in limited quantities on a one-time, first-come-first-serve basis. The first customer to fully complete their online order will receive the Clearance Corner product. NOTE: Simply adding a Clearance Corner product to your online shopping cart will not reserve its inventory for you.

warning WARNING: This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to


System 4500 Room Temp Infusion Epoxy Resin quart (#4500-A), gallon (#4500-B), and 5-gallon (#4500-C) units can be shipped via standard ground service, and by air, without hazard charges within the 48 contiguous United States. All System 4500 Epoxy Cure 1/2 pint (#4540-A, #4570-A), quart (#4540-B, #4570-B), and gallon (#4540-C, #4570-C) units can be shipped via standard ground service without hazard charges within the 48 contiguous United States. All sizes of System 4500 Epoxy Cure (1/2 pint, quart, and gallon) will be subject to a hazard charge if shipped by air. Please see our Hazardous Shipping Chart for more information about hazard fees. We will consolidate items whenever possible to minimize these fees.


System 4500 Room Temp Epoxy Resin is available in a variety of sizes that include: One quart (#4500-A) One gallon (#4500-B) A five-gallon pail (#4500-C). This resin system is sold in kits with 40 and 70 minute pot life cure options that include: (#4540 40 minute; #4570 70 minute).

Product Q&A