Difference between revisions of "Epoxy"
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==Application Overview== | ==Application Overview== | ||
+ | The desired epoxy & hardener amount is calculated beforehand. For a 3:1 mixture (3 parts A to 1 part B), you might have 60ml of epoxy, to 20ml of hardener. | ||
+ | ===Hardener Tricks=== | ||
+ | With our epoxy, you can use one base epoxy resin with different hardeners. For example, you might mix the Base Epoxy with our DEH24 hardener, which mixes at a 4:1 (resin to hardener) mixture. With that same epoxy, at a different time you can also use a different DEH hardener which may have a 3:1 or 5:1 ratio, respectively. | ||
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+ | So for the same resin, you can try different hardeners to get different results. Some hardeners cure better in thicker layers, others in thin layers. Depending on your requirements you can choose the hardener appropriately. | ||
+ | <!-- Need notes about specific use cases here for given hardeners, and example cure sizes, with pictures--> | ||
==Items Needed== | ==Items Needed== |
Revision as of 04:28, 21 December 2019
This article covers Advance Coatings Epoxy Resin, and its properties, pitfalls, and use cases. The base resin is a clear liquid, but can be purchased in colours, or colour-matched.
We currently sell a few different epoxy products, therefore this will be a general page for our epoxy products. While most of this will pertain to all epoxy products, the amounts of Resin to Hardener (whether 5 parts to 1 or 3 parts to 1) may differ.
Common Applications for Epoxy include Coating on top of concrete, plastic, and metal.
Contact us at <info> <at> advancecoatings.com for an SDS sheet.
Safety
Epoxy (part A) is not flammable by itself, however it is a fire hazard, when mixed with Part B in a large mass (such as in a bucket, or drum) and let to sit. The Hardeners (part B) are also corrosive, and skin contact should be avoided. If skin contact is made, use Acetone or a solvent to clean within a short period.
Use Epoxy in a well ventilated area. Some form of breathing protection is recommended. A fan is also a good idea, to keep vapors moving away from you.
Respirator
A recommended Respirator would be the Moldex 7000 Series Reusable Half Mask Respirator link: https://www.moldex.com/product/7000-series-half-mask-respirator/ Note that we sell smaller disposable dust masks, not these.
You should purchase a filter for organic vapors such as the Moldex #7300 Organic Vapor/Acid Gas Cartridges For 7000/7800/9000 Series Respirators link: https://www.moldex.com/product/7000-7800-9000-series-respirator-organic-vapor-acid-gas-cartridge/
You don't have to go with Moldex. There are similar products from 3M. Likely any well known name brand will offer adequate protection. I would recommend buying from official distributors for a product like this. It is not worth cutting corners for a proper respirator.
Epoxy and Hardener will smoke/heat up if a moderate to large amount is left in a mixing container
Our Epoxy has a strong exothermic reaction. If you leave it in a container after mixing with the hardener, within 10 minutes or so it will start to react - smoking and heating up. This means that epoxy should be applied within a reasonable time (0-5 minutes) of mixing. The larger the batch of epoxy, the more dangerous. You can demonstrate this danger on your own, by mixing a 1/2 cup of epoxy with hardener in a small paper cup. Within a few minutes the cup will be hot to the touch, and may smoke. Use caution when testing. It's important to understand this danger, but test in a non-hazardous environment.
Small amounts of reacting epoxy can be mixed with water to suppress the reaction.
Note that once it is applied in a thin layer, such as on a floor, there is no fire hazard. It only reacts when it is in a large mass. Generally, you should cure excess epoxy outside after a job.
Application Overview
The desired epoxy & hardener amount is calculated beforehand. For a 3:1 mixture (3 parts A to 1 part B), you might have 60ml of epoxy, to 20ml of hardener.
Hardener Tricks
With our epoxy, you can use one base epoxy resin with different hardeners. For example, you might mix the Base Epoxy with our DEH24 hardener, which mixes at a 4:1 (resin to hardener) mixture. With that same epoxy, at a different time you can also use a different DEH hardener which may have a 3:1 or 5:1 ratio, respectively.
So for the same resin, you can try different hardeners to get different results. Some hardeners cure better in thicker layers, others in thin layers. Depending on your requirements you can choose the hardener appropriately.
Items Needed
Pitfalls & Tips
Heating up the Part A Epoxy Before Use is Beneficial
The epoxy works best when heated before mixing. For example, if you have a 5 gallon pail of epoxy, a 5 gallon pail heater can be put on the outside for beforehand. The goal is to have the epoxy be liquid, as if like a bottle of water. If you shake the resin, and it is not all fluid, heating it up, may help.
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