Navodya Group Pvt. Ltd. : ER. Shuttering Water Tape is a heavy-duty, self-adhesive waterproof sealing tape designed to seal formwork joints, seams, and corners during concrete pouring.
What is ER Shuttering Water Tape and Why is It Essential?
ER Shuttering Water Tape is an engineered high-tack adhesive tape manufactured with a durable, water-resistant backing and pressure-sensitive adhesive. It is applied over joints and gaps between adjacent shuttering plates, plywood sheets, and column boxes.
During concrete pouring and mechanical vibration, cement slurry and water frequently leak through unsealed formwork gaps, resulting in honeycombing, gravel pockets, and weak edges. ER Shuttering Water Tape seals these gaps completely, ensuring sharp, solid, and structurally sound concrete edges.
Installation Guide for Site Contractors
Applying the tape firmly along formwork seams takes only minutes and saves hours of concrete patching.
- Joint Check: Inspect shuttering joints and ensure gaps do not exceed recommended structural tolerances.
- Surface Cleaning: Wipe dust, concrete slurry, and moisture from the tape contact area with a dry cloth.
- Centered Application: Unroll the tape and press it firmly centered along the joint seam between shuttering plates.
- Firm Pressure: Press down firmly with your thumb or a roller to ensure full contact and eliminate air pockets under the tape.
- Striking: After concrete cures, the tape releases cleanly along with the formwork without leaving stubborn adhesive residue.
Eliminates Concrete Honeycombing
Keeps the vital water-cement slurry inside the mold, preventing gravel voids and honeycombing along beam and slab corners.
Water & Vibration Resistant
Engineered with water-insoluble adhesive that will not loosen or tear under the intense pressure of mechanical needle vibrators.
Frequently Asked Questions About Shuttering Water Tape
Even small 1-2 mm gaps between plates leak liquid cement slurry when vibrated. This slurry loss causes weak, porous concrete edges (honeycombing) that require expensive post-pour patching.
For best adhesion, apply the tape to clean, dry shuttering joints first, and then apply shuttering oil to the plate faces afterwards.
No. The backing material has high tensile strength and puncture resistance specifically designed to withstand the abrasive pressure of concrete aggregates and vibrators.
Yes. The specialized synthetic adhesive releases cleanly with the formwork or easily strips off concrete edges without leaving gummy residues.
ER Shuttering Water Tape is commonly supplied in standard 2-inch (50 mm) and 3-inch (75 mm) widths to bridge various joint configurations.