Epoxy Infusion Resin

Epoxy infusion resin can produce extremely lightweight high performance parts in much simpler process than hand lay-up in open moulds; however, careful consideration must be given when planning part design and resin flow layout.

Most epoxy resins must be heated before infusion; some also come equipped with adjustable hardener speeds so the ratio can be tailored specifically to gel/working time requirements.

Resins

Infusion resins are combined with carbon, fiberglass and Kevlar to produce advanced composite structures, offering higher stiffness and strength compared to polyester-based systems. Epoxy resins and hardeners are carefully chosen according to each application in order to optimize properties that best suit its use.

Most epoxy resins are formed through the reaction between epichlorohydrin and bisphenol A to produce bisepoxide (bisphenol A diglycidyl ether). Other bisphenols may also be combined with epichlorohydrin to produce equivalent epoxies such as bisphenol F or brominated bisphenols like tetrabromobisphenol A; such epoxies may have additional benefits including low viscosity, toughness and an ultrahigh glass transition temperature (Tg).

PT5760 A/B resin system offers extremely high Tg for infusion of production carbon, fiberglass or Kevlar parts into production runs. composite boat repair Using vacuum-assisted resin transfer molding (VARTM Light), this resin can produce strong and long-term carbon or fiberglass parts with increased strength and durability.

Flow Media

Flow is an intelligent media management solution designed to efficiently handle file-based content of all kinds. Perfect for use with NLEs and colour grading applications, Flow indexes every file for easy access so users can quickly locate what they need when they need it.

SAERflow as an internal flow media for vacuum infusion can dramatically reduce labor and material costs by cutting back on external flow mesh requirements and saving labor hours and materials costs. Installed between peel ply and vacuum bag to facilitate resin flow quickly in all directions x, y and z.

This interface solves Darcy's Law and, when combined with Porous Flow and Richards' Equation, fluid retention models like van Genuchten or Brooks-Corey can also be solved numerically using Richards' Equation's nonlinear solution.





Laminating

Lamination is the practice of bonding thin materials together in order to preserve and protect projects, crafts, papers, photos and business cards from water, dirt and germs. Laminating can add luster, strength, readability as well as safeguard against damage due to water seepage.

Resin infusion (commonly referred to as vacuum or resin in a bag) is an efficient manufacturing technique for lightweight high performance composite parts, particularly one-off or physically large parts that would be impractical or prohibitively costly to produce using other manufacturing processes. It is especially suitable for one-off components that would otherwise require too much labor or expense to make with traditional means.

Most infusion epoxy systems feature low viscosity and can be mixed with various speeds of hardeners to customize gel/work time. When selecting your mix, consult the resin manufacturer data sheets first to make sure it will not increase curing times too dramatically. Temperature and humidity also greatly impact this timeframe; to maintain optimal gel/work times it is wise to keep the mix at an ideal working temperature and humidity.

Set-Up

Air that seeps through leaks can create havoc - whether around the mold itself, sealant tape on hoses and fittings or sealant leakage around hoses or fittings. Fixing these leaks promptly is key as these issues could compromise an infusion session!

Trouble can also come from volatile components of your resin system. MEKP and styrene in particular have the tendency to quickly transform from liquid to gas under low temperature infusion, which causes too-quick resin gelling times and can leave gaps on cored panels that need perf holes filled in quickly.

To address this problem, the best approach is to run a high vacuum on the dry stack before and during infusion. This helps lower temperature of mold and resin for quicker gel times. You may be able to add various speeds of hardeners for customizing gel time; but be sure to consult the resin manufacturer's data first!