This document describes the features and characteristics of the 3997 Waterproof Cloth Tape, including the backing material, adhesive type, strength, and water resistance.
The 3M 3997 Waterproof Cloth Tape is a general‑purpose polyethylene cloth laminate coated with an off‑white rubber resin adhesive. It is designed for industrial use such as splicing, holding, wrapping, patching and repairing, and offers high strength, water resistance, and easy tear.
The sheet lists key physical and performance specifications, including adhesive type, backing material, thickness, colour options, shelf life, adhesion strength, tensile strength, elongation, temperature limits, and water vapour transmission rate, together with recommended application techniques and storage conditions.
| Adhesive Type | Rubber resin |
|---|---|
| Backing | Polyethylene treated cloth |
| Tape Colour | Black, White or Silver |
| Shelf Life | 12 months from date of despatch |
| Adhesion to Stainless Steel (ASTM P‑3330) | 4.0 N/10 mm |
| Tensile Strength (ASTM D‑3759) | 35.0 N/10 mm |
| Maximum Temperature | 50 °C |
| Water Vapour Transmission Rate | 25 g water/m²/24 h |
Store it in the original carton at 21 °C (70 °F) and 50 % relative humidity for up to 12 months from the date of despatch.
Apply the tape to a clean, dry surface that is above 0 °C.
The tape is available in black, white, or silver.