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Caulk Gaps and Joints Using Sponge Caulking

17:20
22:47
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At 17:20 in

Flawless Interior Trim Prep & Paint | Pro Tips for Airless Sprayer Finish (New Construction)

What happens here

Using a caulk gun, apply Big Stretch caulk to all vertical and horizontal joints where trim meets the wall or where trim pieces meet each other. For MDF trim, specifically, caulk the cut ends to prevent swelling from water-based paint. Immediately after applying a bead of caulk, use a damp sponge to smooth it out, removing excess and ensuring a neat, consistent line. This 'sponge caulking' method ensures a professional finish by preventing the unsightly appearance of dried caulk lines and addressing porous MDF edges.

Goal: Apply caulk to all remaining gaps and joints in the trim and smooth it with a damp sponge for a clean, seamless appearance.

Tools and materials

  • Caulk Gun
  • Damp Sponge
  • Painter's Rags
  • Big Stretch Caulk Big Stretch

What they say

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[Music] some cocking. you know, this door jam just and I'm going to give you a little tip. When this is MDF, which you know, when you spray it with, you know, your paint, especially a water-based product, it swells up, kind of gets rough like sandpaper. Um, you could prime it, you'll brush it, and it's kind of like a pain in the neck to deal with. You know, that's the the carpenters, that's just how they leave it. A good little tip, method to deal with it is just put some cocking on the end of it. Smear that cocking. The cocking is going to smooth it out. It's going to seal it from your water-based paint and keeping that from swelling up. Now, I just take my finger, you know, smooth it out the best you can so it actually looks smooth like the rest of the trim. And now that's going to be sealed and it's going to look so much better. Like once if you were to prime it and then paint it, sand it and you can brush it again, it's not going to look nearly as good as actually doing this caulking method. So just a simple little tip dealing with cut ends of the MDF that the carpenters you haven't put a nice reveal on. [Music] Heat. Heat. [Music]

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