DIY Cinder Block Bench: Cute Outdoor Seating

Check the manufacturer’s label on recoat times, but you should be able to flip the blocks after an hour and your time to recoat is probably going to be approximately 4 hours under ideal conditions.

If after 4 hours, the blocks feel dry and are not tacky, then go ahead and apply the first coat of paint.

Alternatively, if you don’t have a paint sprayer, use a paint brush to prime and paint the blocks.

If you are using the same acrylic exterior paint as I have recommended in the materials list, then your time to recoat is approximately 4 hours.

So if the paint feels dry and isn’t tacky after 4 hours, you can apply your second coat of paint. You may need three coats.

If you see any lighter spots still coming through, then go ahead and apply a third.

Step 3. Sand And Stain The 4x4s

First sand all of the 4×4’s using an orbital sander and 220 grit paper, and then wipe them down with a lint-free cloth.

Next, use a paint brush to apply the wood conditioner, be sure to wipe away any excess. Let the conditioner sit for 15-30 minutes.

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