Use the NanKarrow IsoTube™ Soundproofing Closed Cell Corner Sealing Rod to help fill gaps and openings in cracks, wall joints, ceiling joints, floor joints, foundations, and more. IsoTube™ helps cushion and insulate and helps prevent 3-point bonding.
What are Closed Cell Perimeter Sealing Rods?
Closed cell backer rods are designed to limit the depth of sealants, help the sealant assume an hourglass shape (which prolongs sealant life), and serve as a bond breaker to prevent bottom-side adhesion. IsoTube™ does not stain sealants, and is chemically inert. It is non-gassing, non-exuding, and virtually dust-free. Due to physical and chemical inert nature, IsoTube™ is compatible with virtually all known cold sealants, including self-leveling sealants – butyl, polysulfide, acrylic polyurethane, silicone, POP, and most other cold-applied sealants
Contemporary foam sealants are loaded with feature-rich attributes. They seal quickly, with a cell type that prevents fluid ingress. Temperature control and vibration management strategies are readily formed when the foam material is intelligently sourced and expertly installed. Think about it, these adhesives and binding materials bond efficiently, so what else is there to think about? Well, what about a sealing scenario where part of the backing surface is missing?
Backing Rods Fill the Void
Like a gap-filling backbone, the backing rods occupy any and all spatial voids. Picture a series of garages behind a busy street. Water seepage problems are taking place between two units because of a crack in the wall. The obvious solution here is to close this gap at its source. Unfortunately, the gap is several centimetres wide. On the bright side, there’s a sealant that’s up to the job, but it’s not going to properly fill the gap. That’s a job for the backing rods. Properly inserted, the pliable strip fills that linearly stretching gap. Then, once the void is occupied, the foam sealant has a backing surface it can be pushed against. That final joint is strong and entirely weatherproof.
Creating a Three-Walled Joint
If the backing rod isn’t fitted, the sealing material is compressed between two walls, the chasm of the joint, as it were. The third surface is missing. Arguably, the compressed caulking will expand to fill the void. However, it has no third wall to occupy. Because of that absent backing surface, the foam sealant doesn’t have a ‘backbone,’ the one we mentioned a moment ago. It is absolutely imperative that the three-way surface joint forms correctly, so that third surface, the one created by the backing rod, must be installed before the foam sealant is applied. Otherwise, application uniformity cannot be correctly established. Keep these facts in mind while installing this material stripping as an expansion joint before an amorphous sealant is applied.
NanKarrow IsoTube™ Soundproofing Closed Cell Corner Sealing Rod Applications:
- Fills gaps and openings in cracks, wall joints, ceiling joints, floor joints, foundations, floor tiles, window frames, door frames, and more
- Non-absorbent, closed-cell polyethylene material
- Twist multiple strands together to fill large cracks, gaps
- Can be used in expansion joints
- Provides a sound surface for filling gaps with silicone and other cold applied sealants.
It can be used in various places like Hotels, Residential Areas, Auditoriums, Recording Studios, Music Rooms, Home Theaters, Rehearsal Rooms, Dubbing Rooms, Ship & Yacht Buildings, Generator Rooms, Schools & Universities, Conference Rooms & Office Cabins, Commercial Places, etc.
NanKarrow IsoTube™ Soundproofing Closed Cell Corner Sealing Rod Features:
- For Use with Cold Applied Sealants
- Closed Cell Polyethylene Foam
- Nonimpregnated, nonstaining, and nonbleeding
- Inert and does not adhere to sealants
- Colour : White
- Length: 100 feet
Step 1: Install backing rod
Step 2: Seal with silicone or other cold applied sealants
Bharat Pal –
This white color sealing rod with 15mm thickness did the work exactly as advertised. Thank you everyone for helping me out.
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