Under the Sea Wall Decals

Decal Installation Guide

As of March 1, 2024: We've improved our products to better meet your decorating needs. Our decals are now compatible with both Wash and Wear and Teflon paints, eliminating the need for wall prep with primers.

Before You Start: Prepare Your Walls

IMPORTANT: Do not apply wall decals to freshly painted walls. Allow at least 4 weeks for the paint to fully cure and "outgas" before installation. Avoid applying to walls with old, flaky, or improperly applied paint, as this may affect adhesion and durability.

Please note: While our products are designed to be removable, there is a risk of paint damage upon removal, especially if the wall surface is not in ideal condition.

1. Prepare your walls:
   • Wash your hands thoroughly.
   • Wipe down the wall with a damp microfiber cloth to remove dust and debris.
   • Ensure the wall is completely dry before starting.
2. Unroll and apply:
   • Remove your decals from the box and gently roll them flat.
   • Peel away the decal from the backing.
   • Place the decal in your desired location.
   • Smooth it down gently with your hands.
   • Use a felt-tipped squeegee or microfiber cloth-wrapped credit card to remove air pockets.
   • Apply firm, even pressure — the adhesive is pressure-activated.
3. For larger decals:
   • Overlap each piece by approximately 1 cm.
   • Carefully align the pattern from top to bottom.
   • Take your time to ensure a seamless look.
4. Re-stick as needed:
   • Remove and re-stick the decal until you're happy with the placement.
5. Decal features:
   • Opaque design — suitable for colored walls and layering.
   • Clean hands and walls before repositioning to maintain adhesive strength.
6. Storage:
   • Keep the backing paper to roll up decals for future use or transport.

Safe Use Guidelines: Ensure decals are securely applied. Regularly check decals placed near beds or children’s areas to ensure they remain firmly attached and out of easy reach.

Wallpaper Installation Guide

Before You Start: Prepare Your Walls

IMPORTANT: Do not apply wallpaper to freshly painted walls. Allow at least 4 weeks for the paint to fully cure and "outgas". Avoid applying to walls with old, flaky, or improperly applied paint.

Please note: While our wallpaper is designed to be removable, there is a risk of paint damage upon removal if the wall surface is not ideal.

If unsure, we recommend using an experienced installer who is familiar with self-adhesive wallpaper.

Roll out your wallpaper and check for missing panels or print faults before beginning.

1. Clean the walls:
   • Ensure the surface is clean, dry, and dust-free.
   • Remove residue, hooks, tacks, blue tack, and switch plates.
   • Wipe skirting boards and ensure clean hands with no sharp jewellery.
2. Unroll the panels:
   • Start with panel #1 on the left.
   • Lay panel design-side down and peel back the top 20 cm.
   • Fold the backing paper under to keep it out of the way.

Installation

1. Hang the first panel:
   • Use a laser level and mark a straight line.
   • Leave a 5 cm overhang at the top and side.
   • Let the panel fall naturally — realign if needed.
   • Note: Even a 1–2° tilt at the top will throw the whole pattern off. This is not a product fault.
2. Smooth the wallpaper:
   • Use a felt squeegee or cloth-wrapped card from top to bottom.
   • Peel backing in 30 cm sections as you go.
   • Apply even pressure to activate the adhesive.

Dealing with Bubbles

• Large bubbles: Gently peel back to release air.
• Stubborn bubbles: Prick with a pin and smooth down.

Matching & Remaining Panels

• Repeat the steps for all panels.
• Panels overlap by 2 cm — match the pattern carefully.
• Painter’s tape can help align before sticking.

Trimming

1. Trim excess: Use a sharp knife to trim edges and around switches.

Special Areas

1. Windows & wardrobes:
   • Measure and trim, leaving a 1 cm overlap.
2. Switch covers:
   • Remove the cover, cut an "X", fold back flaps, and reattach.

Repositioning

1. Clean hands and walls before moving wallpaper.
2. Attach the panel to its backing paper using painter’s tape.
3. Peel off the wall and line it up on the backing sheet.
4. Roll it up and protect edges with bubble wrap.

Safe Use Guidelines: Regularly check wallpaper near beds or children’s areas to ensure secure placement.

Troubleshooting Tips

• Bubbles: Smooth out or pop with a pin. Peel and reapply if needed.
• Pattern alignment: Use painter’s tape to test alignment before applying.

Disclaimer

Our wallpaper is made from premium, peel-and-stick material and is designed to be removable and renter-friendly. However, we cannot guarantee that it will not cause paint damage upon removal, as wall surfaces, paint types, and conditions vary widely between homes. We provide the product only – installation is your responsibility. 

Correct installation is critical. Issues such as pattern misalignment or bubbling are almost always the result of incorrect wall preparation or improper alignment—particularly if the first panel is not installed straight. These are not considered product faults.

By purchasing and using our wallpaper, you accept full responsibility for the installation process and any outcomes, including the risk of paint damage. If you are unsure or inexperienced, we strongly recommend hiring a professional installer who is familiar with self-adhesive wallpaper and overlapping panel alignment.