Drywall finishing with setting-type joint compound
Here's why information technology's worth information technology to use setting drywall compound.
When finishing drywall, about DIYers stick with the ready-to-use stuff sold in buckets and shy abroad from the powdered stuff sold in bags. That's often a smart option. "Setting" compound is a hassle: You accept to mix it with water, it's harder to clean up, and you don't get one of those nifty buckets. Still, setting compound is sometimes worth the trouble.
When to utilise information technology
Setting compound is perfect for deep gaps earlier you tape the joints. It hardens fast, then you don't have to wait all 24-hour interval before you lot tape over information technology. And because it barely shrinks, you don't have to apply several layers to fill deep voids.
If you utilise mesh articulation tape, use setting compound to embed the record. Mesh isn't as strong as newspaper tape, merely the extra strength of setting chemical compound provides a strong joint. There'southward no need to use setting compound afterwards the beginning coat.
What to buy
Buy "lightweight" setting compound. Never, ever buy regular setting compound; it gets stone-difficult and is virtually impossible to sand.
Setting compounds have brand names that include a number to signal roughly how many minutes of working time you'll get before hardening begins. Ii examples are Quick Set Lite v and Like shooting fish in a barrel Sand 210. For deep filling, xx- or 45-infinitesimal compounds are a skillful option. For embedding mesh tape, choose xc minutes or longer.
Mixing and cleanup
You can mix modest batches with a putty pocketknife, only for larger amounts, a powerful drill with a mixer is best. Either way, the key to a smoothen mix is to let it sit or "slake" for a infinitesimal or two after the initial mixing. That gives the chunks time to absorb water. And then mix until the chemical compound is complimentary of chunks.
Clean your tools ASAP. Don't just toss them in a bucket of water. Unlike standard joint compound—which softens after a skillful soaking—setting compound continues to harden even under water.
— Gary Wentz, Senior Editor
For more great information about finishing and sanding drywall, check out these articles:
– Tips for Finishing Drywall
– How to Sand Drywal
– How to Repair Holes in Drywall
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Source: https://www.familyhandyman.com/article/drywall-finishing-with-setting-type-joint-compound/
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