Description TN525 is a self-adhesive medium density PVC foam tape with a pressure sensitive acrylic adhesive supplied on an easy to use roll. Packaging Thickness 1.5 mm, 3 mm & 6 mm in black & grey 4.5 mm, 7.5 mm, 9 mm, 10.5 mm & 12mm in black only Widths: Depending on thickness from 6 mm to 1,220 mm (the 1.5 mm & 3 mm are 1,220 mm, 4.5 mm & 6 mm are 1,210 mm and the rest are 1,180 mm). Colour Black and grey (other colours to order). Technical Information Property Fire Rating Foam Density Tensile Strength Elongation Water Absorption Resistance to Chemicals Acids Mineral Oil Alcohol Alkalis Petrol Soap & Detergents Good Good Good Good Good Good Compression Required to Achieve a Positive Waterseal Peel Adhesion 180° 10 Minimum Dwell Application Temperature Service Temperature Store in shaded dry conditions not exceeding 23°C and 50% RH Shelf Life 24 months when stored as recommended in original unopened packaging Preparation • Ensure bonding surfaces are free from irregularities and loose particles which may impair adhesion. • Dust, dirt and grease can be removed using AT115 Solvent Cleaner. Where substrates are sensitive to solvent attack, clean with warm water and allow to dry. • The substrate must always be dry before application of the tape. Water, Air & Dust Seal Usage / Purpose TN525 is a single sided medium density PVC foam tape which when compressed by 30% can be used to form a water and air/dust seal. Insulation performance against shock, vibration and movement • When under compression (30%), provides an effective weather seal against wind and rain • Provides a barrier to thermal bridging, galvanic corrosion and acoustic transmission • Pale blue release paper on the nonadhesive face to prevent stretching when applying and

• The exposed adhesive face should be unwound gradually, and carefully located onto the surface of the substrate. Care must be taken to avoid compressing or stretching the tape during location - this could induce peeling forces and cause the tape to lift from the substrate. • Once the tape has been positioned then apply even pressure throughout the length using a roller, starting at the centre and moving to each end to avoid stretching. • The assembly must provide sufficient force to compress the tape by 30% of original thickness if a weatherseal performance is required. Over compression should...