Most common epoxy resins are produced from a reaction between epichlorohydrin ECH and bisphenol-A BPA , though the latter may be replaced by other raw materials such as aliphatic glycols, phenol and o-cresol novolacs to produce specialty resins. The epoxy resins can be obtained in either liquid or solid states. The two processes are similar. The resin is then washed with water and the solvent is removed by vacuum distillation. The producers will add the specific additivesto create a formula that lend special properties such as flexibility, viscosity, color, adhesiveness, and fastercuring, depending on a particular application. In order to convert epoxy resins into a hard, infusible, and rigid material, it is necessary to cure the resin with hardener.
2 Gallon Kit Interior Water-Based Clear Floor Epoxy Primer DK 600WB™
Applying epoxy over stained surfaces – Pro Marine Supplies
Fiberglassing model aircraft is a well known method of adding considerable durability and strength to a given model airframe. A lot of people would like to apply fiberglass to their model aircraft but are either not willing to part with the cash involved to pay for a good epoxy resin system or simply cannot use epoxy for reasons of health, ie allergic reactions to the various catalysts used. Fortunately you can still use fiberglass for a lot of items without having to use epoxy resin. Water based polyurethane paints are very cheap, have a good shelf life can come in a wide variety of colours and have very low toxicity, especially compared to epoxy. So, what is water based polyurethane? It's quite simply what you know as water based paint, sold in all hardware stores and a lot of larger supermarkets and stores. Most modellers opt for clear varnishes and apply their desired colouring over the top, though many tints are available even for clear paint.
Water-Based Catalyzed Epoxy
When you begin to compare the many forms and variations of epoxies, glues, and resins available today, the results may leave you scratching your head. One question often leads to another. The chemistry behind epoxy and the varying formulas of glue has come quite a long way over the years, and can be a bit intricate.
Waterborne resins are sometimes called water-based resins. They are resins or polymeric resins that use water as the carrying medium as opposed to solvent or solvent-less. Resins are used in the production of coatings , adhesives , sealants , elastomers and composite materials. The resin could be water soluble, water reducible or water dispersed. Most coatings have four basic components.