What Macropoxy 646?
MACROPOXY 646 FAST CURE EPOXY is a high solids, high build, fast drying, polyamide epoxy designed to protect steel and concrete. in industrial exposures. Ideal for maintenance painting and fabrica- tion shop applications.
What is Macropoxy used for?
Sherwin-Williams® MACROPOXY® 646 is a fast cure Epoxy Mastic with fast dry times. It is ideal for use in protecting steel and concrete in industrial applications. It is commonly used for maintenance and painting in fabrications shop applications. It can be applied to marginally prepped steel surfaces.
Is Macropoxy 646 good?
Designed to protect steel and concrete in industrial exposures, Macropoxy® 646 Fast Cure Epoxy is ideal for maintenance painting and fabrication shop applications. The high-solids content ensures adequate protection of sharp edges, corners and welds.
How do you clean Macropoxy 646?
Minimum surface preparation is Hand Tool Clean per SSPC-SP2. Remove all oil and grease from surface by Solvent Cleaning per SSPC-SP1. For better performance, use Commercial Blast Cleaning per SSPC-SP6/NACE 3/Sa2, blast clean all surfaces using a sharp, angular abrasive for optimum surface profile 50-75 microns.
Can you use Macropoxy on wood?
Under the Product Category Rule (PCR) for Architectural Coatings, Macropoxy 646 falls under the following heading: “a decorative or protective paint or coating that is formulated for interior or exterior architectural substrates including, but not limited to: drywall, stucco, wood, metal, concrete, and masonry.”
What is sweat in time for epoxy paint?
induction time
In fact, many epoxy materials have what is known as an “induction time,” or “sweat-in time,” where the coating is mixed and allowed to react for a period of time (e.g., 30 minutes) so that cross-linking of the components can initiate prior to application of the product.
What is gel time for epoxy?
Gel time is the time it takes for a mixed resin system to gel or become so highly viscous that it can no longer be considered workable or able to be handled.
What sweat means?
These terms refer to the waiting period required between the time you mix and the time you can start applying a two-part product, such as an epoxy. This allows the necessary chemical reactions between the two parts to begin so the coating will cure and perform properly.
How long does it take for resin to thicken?
Repairs – you can use your resin right after the rest period, or you can let it thicken 1-2 hours to use to create thicker bond.
How long does epoxy take to thicken?
General about Epoxy Resin Dry Time Usually, it takes around 72 hours to fully cure the epoxy. Whatever the dry time, the resin should be allowed to fully cure before attempting to move or sand it. If the epoxy isn’t allowed to rest until fully cured, your project will be prone to surface contamination.
Is sweat clean or dirty?
Composed almost entirely of water, with only 1-2% being ingredients like salt, protein, fats and acids, perspiration is entirely odorless on its own. It’s only when sweat gets excreted—and subsequently processed by the bacteria that lives on your scalp, pits and groin—that its distinctive odor rears its ugly head.