Our products are marine or industrial, and not intended for use in applications involving food contact. To claim that a product is food-safe, it must be tested by an independent lab, which we do not do. On the other hand, when some of our two-part epoxy products are properly measured and mixed, then properly cured, they are theoretically inert and would be no more of a problem than many other plastics. But since the accuracy of those processes is beyond our control, we can’t make those claims.

Probably. Hardeners yellow and darken over time due to contact with air and sunlight. This does not affect their performance. To satisfy yourself do a small test and make sure it cures properly.

Epoxy resin adhesives will bond all woods, aluminum and glass well. It does not bond to Teflon, polyethylene, polypropylene, nylon, or Mylar. It bonds poorly to polyvinyl chloride, acrylic and polycarbonate plastics. The only way to tell if an epoxy will bond to a material is to try it. Generally, epoxy adhesives are the best choice for bonding dissimilar materials together. If epoxy bonds to Material A and to Material B it will bond the two materials to each other. The best thing to do is to try it and see for yourself.

We will guarantee the performance of our epoxy products for three years from the date of manufacture, printed on the bottom of the containers, provided they are stored properly. They will probably last much longer, but they should be tested first after the three-year period. The resin may crystallize or the hardener may darken but this does not affect its performance. Crystallized resins should be reheated in a water bath that is 125 F until the resin clears up prior to use in your application.

Up-to-date SDS documents are available on the individual product pages or in the RESOURCES section at SystemThree.com

Yes. The white solid or haziness is a mass of resin crystals. Crystallized resin will not cure properly. To bring the resin back to a usable state, heat the bottle up in a water bath above 125 degrees F until the resin clears up. It will then be ready for use.

See Technical Data Sheet or container for surface prep information.

See Technical Data Sheet or container for coverage areas.

Liquid products can easily be measured by volume; paste and solid products must be measured by weight. To measure by volume, the use of disposable cups with graduation marks on the side is adequate. Pour the Part A resin and the Part B hardener on top of each other, in the same container. For measurement by weight, a gram scale (for small batches), or a postal scale(for larger batches) is necessary.

Different products have different minimum tolerable application temperatures. Please see the individual product pages on the website or the Technical Data Sheets for the product.

No. Epoxy resin systems are two-part products where each part is designed to go with the other in the specified proportions.

Epoxy adhesives, being gap-filling glues, need only enough clamping to close the joint. Unlike other glues, epoxy requires low pressure and a proper film thickness of resin to make a proper glue joint. 

For wood substrates, we recommend using our QuickCure 5 in either u-TAH or 50 mL cartridges with the proper mix tips. QuickCure 5 provides an air-free and clear epoxy finish that will not allow for bubbles to release from the wood since it sets up so quickly.

Please layer up the epoxy in the void or crack over time (5 minutes in between layers), in order to prevent the epoxy from getting too hot and inducing an exothermic reaction. 

See Technical Data Sheet or container for working times.

See Technical Data Sheet or container.

See Technical Data Sheet or container.

The only way to speed the cure of our epoxy resin products, once they've been applied, is to heat the room or the area that your project is in. Every 18°F increase in temperature cuts the time it takes for the resin to cure in half.