Can I tint or color System Three epoxies?
Yes, we offer a pourable Epoxy Pigment Dispersion specifically formulated to be dispersed in System Three epoxy resins. They are available in 7 standard colors and can be blended with each other to create additional colors. Please check our our blog and product page for more information on these color pigments here.
All other dyes and colorants should be tested by the user to ensure it cures to their satisfaction.
Can I use a stain under or over System Three epoxies?
System Three epoxies do not accept stains well and should be applied before the epoxy. In general, oil-based wiping stains can be used so long as they are completely cured before applying mixed epoxy resin. However, it is prudent to do a test by staining some scrap and then applying epoxy. Check for appearance and bonding.
Can polyester or gel coats be applied over epoxy?
The general rule is that epoxies will bond over cured polyester but polyesters do not bond over System Three epoxies. To get around this problem, we developed a resin system that can be used as a "tie-coat" barrier and is unique in allowing polyester resins and gel coats to be bonded directly over it. This epoxy is called the SB-112 and is available on our website here.
Why didn't the epoxy cure?
There are two common reasons why the epoxy didn't cure: incorrect measuring and incomplete mixing. Measuring and mixing is really easy with most System Three® epoxy systems because they mix at a 2:1 or 1:1 volume ratio, but this doesn’t mean you don’t have to pay attention to what you’re doing. First , read the label or Technical Data Sheet to see what the correct ratio is for the product you are using. Customers will call our Technical Support line suggesting that something is wrong with the epoxy because it didn’t cure properly. We know of no situation where properly-mixed resin/hardener has gone bad or has been contaminated and wouldn’t cure. In the majority of cases, it turns out that the batch was either incorrectly measured or insufficiently mixed. Epoxy chemistry just will not allow it to work any other way.
If you’re working on a project that requires you mix many small resin batches, develop a measuring technique that is sufficiently accurate and stay with it. Doing it the same way each time will minimize the chance for error.
The Part A resin has hardened and turned white. Can I still use it?
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.
Will epoxy be damaged if stored in freezing or cold temperatures?
Crystallization occurs when the product is exposed to low temperatures for prolonged periods of time; the presence of any impurities will then initiate the crystallization process.
System Three products are formulated to resist Crystallization, but it can still occur.
Heat will bring the resin back to a usable state, and the best way to heat the resin is to place the container in a water bath with water heated to 125°F.
How do I measure by volume vs by weight?
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.
- Why did my epoxy heat up soon after I mixed it?
Epoxy got hot. What happened?
Most of our liquid epoxy products need to be poured out soon after the two parts are mixed together to prevent premature curing, called "exotherm."
What materials will your adhesives bond together?
System Three® epoxy resin adhesives will bond (glue) all woods, most metals, concrete, masonry, glass. They will also bond some plastics like nylon and Mylar. Following a flame-treatment surface preparation, they will bond to many other plastics including polyethylene, polypropylene, polyvinyl chloride, acrylic and polycarbonate plastics. 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.
What materials will adhere to epoxy surfaces?
System Three® coating/laminating resins present easy-to-bond to surfaces. When these surfaces are cured and prepared properly, nearly any film-forming coating or adhesive will bond well to them. Follow the surface preparation directions on the product you intend to use over the top of the System Three epoxy product.