5 Summer Repairs with Flex Seal Extreme Liquid Epoxy

“5 Summer Repairs with Flex Seal Extreme Liquid Epoxy” was written by a member of the Flex Seal Editorial Team. All photos taken by Flex Seal Studios.

Your to-do list isn’t getting any shorter, but you got this covered. Flex Seal Extreme Liquid Epoxy will make checking off those summer repairs much easier. This powerhouse adhesive cures to a strong, waterproof bond and was designed for extreme conditions, indoors and outdoors.

Here are 5 fixes you can make with our Extreme Liquid Epoxy to help keep your home solid and looking sharp.

5 Summer DIY Repairs with Liquid Epoxy

Materials Needed

Flex Seal Extreme Liquid Epoxy
Putty knife or applicator
Sandpaper or steel wool
Utility brush
Protective gloves and eyewear
Clean, lint-free cloths
Clamp (Optional)

1. Reattach Loose Outdoor Tiles

Loose tiles on patios, steps, or pathways aren’t just eyesores—they’re a tripping hazard. Whether caused by heat expansion or worn-out adhesive, now’s the time to resecure them before summer entertaining is in full swing.
Start by cleaning the tile and the area where it will be reattached. Remove any old adhesive, dirt, or debris using a putty knife or brush.
Lightly sand the underside of the tile to create a better grip for the epoxy.
Apply a thin, even layer of Flex Seal Extreme Liquid Epoxy to the back of the tile.
Press the tile firmly into place, applying pressure for a few minutes to help it bond securely.
Allow the tile to cure fully before stepping on it or spraying the area with water.

Flexpert Tip: Flex Seal Epoxy sets in 3–10 hours and fully cures in 15–24 hours.

2. Seal Exterior Wall Cracks

Warm weather can expand foundation or stucco cracks. Sealing them now can improve your home’s appearance and help prevent moisture damage during summer storms.
Begin by clearing out any loose debris inside the crack using a wire brush, vacuum nozzle, or compressed air. Make sure the surface is clean and dry.
Apply Flex Seal Extreme Liquid Epoxy directly into the crack. Let the product seep deep into the void to create a strong bond.
Use a putty knife to smooth out the epoxy for a clean finish.
Leave the area undisturbed until fully cured—around 15 to 24 hours.

Flexpert Tip: For cracks wider than ¼ inch, apply the epoxy in layers. Let each layer partially cure before adding the next for maximum strength.

3. Repair Cracked Ceramic Planters

Terracotta or ceramic planters can crack easily if they get knocked over. But don’t toss them—repair them! Flex Seal Extreme Liquid Epoxy is a great way to extend the life of your favorite pottery.
First, clean the broken edges. Use a damp cloth or sandpaper to remove any old adhesive or dirt, if needed. Let it dry thoroughly.
Apply a steady line of Flex Seal Extreme Liquid Epoxy along the break on one side of the broken piece.
Press the pieces together and hold for a few minutes. Wipe away any excess epoxy before it dries.
Use painter’s tape or straps to hold the planter in place while it cures overnight.
Once fully cured, the planter will be watertight and ready to be refilled with soil or plants.

Flexpert Tip: For complex breaks, repair one section at a time to maintain control and precision.

4. Reinforce Loose Wooden Stair Treads

Loose stair treads can lead to creaking, wobbling, or accidents. Reinforcing them with Flex Seal Extreme Liquid Epoxy is a strong, lasting fix that helps restore safety and stability to your steps.
Clean out the joint where the stair tread meets the riser, removing dust, splinters, and any old adhesive. Use sandpaper for a smoother surface.
Apply Flex Seal Extreme Liquid Epoxy deep into the joint.
Press the tread back into place and clamp it tightly to maintain pressure during curing. This ensures the epoxy bonds evenly throughout the joint.

Flexpert Tip: Let the repair cure for at least 24 hours before using the stairs again.

5. Bond Outdoor Metal Fixtures

Metal fixtures such as gates can become loose or separated due to rust or weather exposure. Use Flex Seal Extreme Liquid Epoxy to reinforce or reattach them.
Use steel wool to remove any rust or paint flakes from the bonding areas. Then wipe the surfaces clean with a cloth to remove dust or oil.
Apply a thin, even layer of Flex Seal Extreme Liquid Epoxy to the desired surface.
Join the parts together and apply light pressure. If necessary, use clamps or tape to hold the pieces in place.
Let the epoxy cure completely (15–24 hours) before putting any weight or stress on the bond.

Flexpert Tip: Direct sunlight can accelerate curing, which may reduce bonding strength. For best results, do this repair in a shaded area or set up a canopy tent over your work space.

Flex Seal Extreme Liquid Epoxy bonds fast and holds strong—perfect for quick fixes that last. Grab some today and make repairs with confidence.

By Paula Falcon
Paula is a Creative Copywriter for the Flex Seal Family of Products.