Not all colours are compatible with epoxy resin.

As long as you are within the 5% maximum error margin specified for this resin system, you’re fine. Note: Make sure to double check the maximum margin of error on your system. Ask Dr. Dave is written by Dave Dunn, Ph.D., of F.L.D. Questions for publication should be directed to him at 242 Trails End, Aurora OH 44202; phone (440) 477-5164; fax (330) 247-1690; or email DrDave242@windstream.net . Make sure that the air humidity remains below 70% during epoxy resin processing, as undesirable effects can occur here as well. |   Legal Notice, Restore your Decorative Concrete with with Nox-Crete’s Deco-Peel and Natraseal – Step by Step.

Answer: This terminology can be confusing because the terms are often used interchangeably between technologies and differently by various manufacturers of the same technology.

Simultaneously, the presence of excess mix water prevents the liquid hardeners from penetrating deep enough into the concrete to react with any calcium hydroxide that may be present. If you take the individual points to heart during processing, you are much more likely to get a result according to your expectations. Things You'll Need ... to improve flow and shorten drying time. All rights reserved. Our epoxy resin calculator will help you with the calculation. The more you open the hardener container, the more oxygen is added and the worse the result will be. Most two-pack primers are mixed at a ratio of 3:1 or 4:1 with a compatible hardener. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated, Raw Materials, Chemicals, Polymers and Additives Handbook, Repairing Leaks in a Fire Sprinkler System. Calculate the amount of hardener needed based on that amount of epoxy resin that you poured. How to Mix Primer & Thinner By Nathan Fisher Hunker may earn compensation through affiliate links in this story. Tipp: Make sure that the air humidity remains below 70% during epoxy resin processing, as undesirable effects can occur here as well. Check the dates on the label of the primer against the technical data sheet provided to ensure the product has not exceeded the recommended shelf life. By visiting this website, certain cookies have already been set, which you may delete and block. With little time to properly hydrate on day one, the concrete slab contains a limited amount of calcium hydroxide available to chemically react with the liquid hardener. Use a measuring cup with a sufficiently fine scale so that you can measure exactly. Visit our updated, This website requires certain cookies to work and uses other cookies to help you have the best experience. Observe Ambient Temperature. I want to hear from you. The “Day 28” disk set continued to outperform the “Day One” disk set ending with a 477% improvement in abrasion resistance over the untreated “Control” at 400 revolutions compared to the “Day One’s” 163% increase in abrasion resistance against the untreated “Control” disks at the same number of revolutions. The 28 day recommendation was based on intuition and a strong understanding of the chemistry behind liquid floor hardeners and the means by which they densify concrete surfaces. Enterprises, a technical consultancy and full-service industrial market-research firm specializing in the adhesives, sealants, specialty rubbers and plastics fields. The more volume you mix, the bigger the problem. Hardeners, having a clear path into the pores and capillaries and able to penetrate beyond the concrete’s surface, react with the calcium hydroxide throughout the slab and create calcium silicate hydrate gels. If you have poured enough primer into the mixing pot to reach number 5 on the left-hand markings, you will need to pour in enough hardener until it reaches the number 5 on the middle of the stick. You can find more information in our guide article Epoxy resin color. Contamination can lead to poor adhesion and slow drying times. In this way, the density of the materials is not important.