What you choose ISTOYO Crystal Clear Epoxy Resin Kit? Clear and Self leveling Our resin is easy to self leveling and fully resistant to yellowing, which will remain clear all the time. Premium Quality Safe comes first,our customized art resin epoxy clear is made with premium quality, being 100% safe for use indoors and outdoors. No dangerous reactions,NON-TOXIC and low odor! Durable and Long-Lasting Our products are highly durable and built to last, with an exceptional resistance to water and moisture, temperature, and chemicals. Reliable Formula ISTOYO resin feature a reliable formula that provides consistent results every time. With the dependable performance, you can trust that your projects will be strong, durable, and long-lasting. Remind kindness of resin epoxy： ✔1. Resin and hardener: Make sure you used resin and hardener and not all resin or all hardener; double check the proper 1:1 by volume mix ratio was used. ✔2. Fully mixed: Upon mixing, be sure to scrape sides and bottom of mixing container to ensure all resin and hardener are fully blended. Failing to do so can result in soft spots in coating; ✔3. Pouring: NEVER scrape or brush the sides or bottom of the container you just mixed. There will always be an unmixed portion which can be dislodged and will leave a wet or sticky spot on your coating; ✔4. Temperature: Temperature: All materials and work space should be maintained at 70°F-80°F. Epoxy is a temperature sensitive material. When cool, it's thicker and sets slower. When warm, it's thinner and sets faster. When the material or working conditions are below 70°F, epoxy resin may become too viscous to properly release air and self level. Working in conditions or with material above 80°F, epoxy resin may set too quickly and become too hot and exothermic, which could cause it to yellow, distort or crack. ✔5. Using environment: Use them in a well ventilated area. Keep out of reach of children under.