For sealing wall and floor junctions, puddle flanges, and plumbing penetrations without waiting for liquid sealants to cure, BRW PF Tape provides an instant, self-adhesive moisture barrier. This butyl rubber sealing band sticks directly to common substrates including primed concrete, timber, compressed fibre cement sheeting, and metals, allowing you to apply surface finishes immediately after installation.
The tape utilizes a high-tack butyl rubber backing paired with a fleece-textured fabric face. The butyl layer deforms easily over irregular substrates to create an immediate mechanical seal against water ingress and vibration. Because the fabric face is highly compatible with cement-based and liquid systems, you can apply Gripset tile adhesives, membranes, renders, and screeds directly over the tape without adhesion failure. This mechanical bondbreaker system accommodates joint movement and flexing at critical intersections, preventing stress transfer from the substrate through to the finished tile or coating layer.
On clean, dry, stable, and dust-free surfaces, BRW PF Tape can be applied without a primer. Highly porous or dusty substrates must be primed with Gripset GP, E60, or Xpress H20 Primer Plus. For damp substrates, prime with Gripset E60 before tape application.
To install, measure and cut the tape to length. Peel back the release paper to expose the grey butyl adhesive and press the tape firmly into place, ensuring the white fabric face is exposed upwards. Use a spatula or a vinyl roller to smooth out all air pockets and creases to guarantee full connection with the substrate. Finishes, coatings, and tile adhesives can be applied immediately once the tape is rolled down.
No, Gripset BRW PF Tape requires a dry surface for application. If the surface is damp or has high residual moisture, it must first be sealed and primed with Gripset E60 to ensure proper adhesion and performance.
The primary advantage is instant sealing properties, which means no drying or curing time is needed. You can apply finishes immediately, avoiding delays associated with liquid alternatives and speeding up project completion.
Priming is generally not required over non-porous surfaces like metals and PVC plastics. However, highly porous surfaces or those with dust or residues must be primed using Gripset GP, E60, or XPRESS H20 PRIMER PLUS to ensure reliable adhesion.
No, this tape is not designed for exposed applications. It must always be finished over with a suitable surface covering such as Gripset membranes, coatings, mortars, or renders.
| Application | Key benefit | Primary trades |
|---|---|---|
| Wall/floor junctions & joint transitions as a bondbreaker | Provides a flexible, instant seal that prevents cracking and accommodates movement without drying time. | Waterproofers, tilers, builders |
| Sealing puddle flanges, penetrations & waterstops | Ensures an immediate, watertight seal around critical points, allowing instant application of subsequent finishes. | Plumbers, waterproofers |
| Detailing over plumbing pipes, PVC, and flashings | Offers high adhesion and conformability for complex shapes, providing an instant barrier against moisture ingress. | Plumbers, roofers, waterproofers |
| Guttering & roofing repairs | Delivers an instant, rupture-resistant patch for leaks, maintaining integrity across a service temperature range of -30ºC to 80ºC. | Roofers, general maintenance |
| Patching pin holes and pitted metal surfaces | Creates a quick, reliable seal on metal, ready for immediate overcoating or finishing. | Maintenance, roofers |
Clean the substrate thoroughly and measure the length of the joint or penetration to be sealed.
Use sharp scissors or a utility knife to cut the tape to size, allowing for overlaps at corners.
Remove the backing paper and press the butyl side onto the substrate with the fabric face exposed.
Use a spatula or small roller to force out air bubbles and ensure 100% contact with the surface.
Wear safety shoes and gloves. The SDS suggests gloves suitable for intermittent contact should be worn. Always wash hands before eating, drinking, or using the toilet.
Natural ventilation is adequate under normal use conditions.
Store in a cool, dry, well-ventilated place, out of direct sunlight, and away from foodstuffs and incompatible materials like oxidising agents. Keep containers closed and upright. The product is best used within 12 months of purchase but remains stable if stored correctly. Dispose of material and containers according to local regulations.
Proper surface preparation and correct priming ensure optimal adhesion and long-term performance for Gripset BRW PF Tape.
Surface prep: Ensure surfaces are clean, dry, sound, and free from dirt, dust, oil, grease, or any contaminants. Structurally unsound layers should be mechanically removed.
Primer: Not required. These non-porous and dense surfaces typically do not need priming.
Surface prep: All surfaces must be clean, dry, sound, smooth, and free of loose material, moisture, or contaminants. Masonry needs defects filled and levelled. Mechanically remove unsound layers.
Primer: Optional. For highly porous surfaces, or those with dust or residues, priming is required. Use Gripset GP, E60, or XPRESS H20 PRIMER PLUS. If the surface is damp or has high residual moisture, Gripset E60 must be used.
| Property | Value |
|---|---|
| Colour | Fabric face: white, Butyl backing: grey |
| Thickness | 0.8 mm |
| Solids | 100% |
| Specific Weight | 1.45 g/cm³ |
| Tensile Strength (EN 12311-1) | >100N longitudinal & transverse directions |
| Elongation at Break (EN 12311-1) | 70% longitudinal and transverse directions |
| Peel Adhesion (ASTM D1000) | >80N |
| Loop Tack Test (ASTM D6195) | >70N |
| Vertical Flow (ISO 7390) | <10mm |
| Service Temperature | -30ºC to 80ºC |
Here are some common examples on where Gripset BRW PF Tape used by our customers.
