Visco-Elastic Anti-Corrosion Adhesive Tape

Product Description

Visco-Elastic Anti-Corrosion Tape is a novel corrosion protection product specifically designed for buried pipelines and irregularly shaped equipment such as flanges, valves, and pumps. Based on advanced polyisobutylene (PIB) technology, the tape offers unique self-healing properties, cold flow characteristics, and a non-curing nature, ensuring permanent and reliable protection.

The Visco-Elastic system features simple application, excellent sealing performance, long service life, and is fully environmentally friendly. Its performance meets the requirements of rigorous international standards including ISO 21809-3 and NACE SP0109.

Application Method: For irregular surfaces such as valves, flanges, pipe fittings, and bolts, the tape should be applied directly over the Visco-Elastic Paste. The paste fills all surface depressions, creating a smooth profile and preventing bridging or voids during tape wrapping.

Key Features

• Self-Healing — Minor damages repair themselves automatically
• Cold Flow — Fills gaps and irregularities over time
• Non-Curing — Never hardens or becomes brittle
• Minimal Surface Preparation — No sandblasting required (St2 grade acceptable)
• Environmentally Friendly — 100% solids, no VOCs, safe for applicators

System Composition Recommendation

For the best results on irregular surfaces, it is highly recommended to use this tape in conjunction with the Visco-Elastic Paste. The paste acts as a filler to create a smooth base, while the tape provides the main corrosion barrier.

Installation Guide & Precautions

Installation Method

The Visco-Elastic Tape is applied by manual wrapping. Unlike heat shrink sleeves, no heating or special equipment is required. The tape is self-adhesive and conforms to the substrate through hand pressure.

Quick Installation Steps (Over Visco-Elastic Paste)

1. Surface preparation: Clean the steel surface to St2 grade (hand tool cleaning). No sandblasting is required.
2. Apply paste: Fill all cavities, bolt recesses, and sharp corners with Visco-Elastic Paste. Press firmly and smooth to create a level surface.
3. Wrap tape: Remove the release liner. Wrap the tape spirally over the paste with 55% minimum overlap. Apply firm hand pressure to ensure intimate contact.
4. Finish: Press the tape end down firmly. No additional protection is required for buried service, though an outer wrap may be added for mechanical protection.

Key Reminders

• No heating needed — The tape is cold-applied and self-adhesive.
• Overlap is critical — Minimum 55% overlap ensures complete sealing.
• Apply firm pressure — Use hand or roller to eliminate trapped air.
• Compatible with paste — The tape alone works on smooth surfaces; always use paste on irregular shapes (flanges, valves, fittings).
• Store in a dry, cool place below 35°C, away from direct sunlight and heat sources.