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WR Meadows KOOL-ROD 2 Inch Backer Rod - 252 LF Carton
WR Meadows KOOL-ROD is a closed-cell polyethylene foam backer rod, offered here as a 2 inch diameter carton of 252 LF. It backs cold-applied joint sealants, sets sealant depth, and will not stain or adhere to the sealant.
- 2 inch (50.8 mm) diameter for a 1-5/8 inch (41 mm) joint
- 252 LF per carton, 42 pieces per carton
- Meets ASTM C1330 Type C and ASTM D5249 Type 3
$234.40
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WR Meadows KOOL-ROD 2 Inch Backer Rod - 252 LF Carton
WR Meadows KOOL-ROD is a closed-cell, flexible, rope-like polyethylene foam joint backing intended for use with cold-applied joint sealants. It is virtually non-absorbent, chemically inert to most solvents, and will not stain or adhere to the sealant, so it prevents three-sided adhesion. The WR Meadows data sheet lists this 2 inch rod for a 1-5/8 inch (41 mm) joint width.
Key Features
- Controls sealant depth to keep the proper joint design ratio
- Pushes sealant against the joint sidewalls for maximum sidewall adhesion
- Sealants will not adhere to it, which prevents three-sided adhesion failure
- Closed-cell foam that does not allow air or moisture entrapment
- Easily compressible and light weight; installs fast and stays in place
Applications
- Construction, expansion, isolation, control, and pavement joints in concrete
- Vertical and horizontal joints
- Glazing, copings, and joints between precast panels
- Door and window perimeters on the building envelope
Technical Specifications
| Property | Value |
|---|---|
| Material | Flexible, closed-cell polyethylene foam |
| Color | Dark gray |
| Diameter | 2 inch (50.8 mm) |
| Joint width | 1-5/8 inch (41 mm) |
| Length per carton | 252 LF (77 m) |
| Carton contents | 42 pieces per carton |
| Compatible sealants | Acrylic, butyl, polyurethane, polysulfide, silicone, and most other cold-applied sealants |
| Standards | ASTM C1330 Type C; ASTM D5249 Type 3 |
| Density | 1.5 to 1.9 lb/ft³ (ASTM D1622) |
| Water absorption | Less than 0.5% by volume; less than 0.03 g/cc (ASTM C1016, Procedure B) |
| Compression recovery | More than 90% (ASTM D5249) |
| Compression deflection | 5 psi (ASTM D5249) |
| Tensile strength | More than 29 psi (ASTM D1623) |
| Pack | Carton, 252 LF |
| Part number | 4652000 |
Product documents: WR Meadows KOOL-ROD Data Sheet (PDF)
Frequently Asked Questions
What sealants can KOOL-ROD be used with?
It is compatible with acrylic, butyl, polyurethane, polysulfide, silicone, and most other cold-applied sealant compounds. It will not stain or adhere to the sealant.
What joint width is the 2 inch KOOL-ROD for?
The WR Meadows data sheet pairs the 2 inch (50.8 mm) diameter with a 1-5/8 inch (41 mm) joint width. The data sheet table lists the joint width for each KOOL-ROD diameter.
How deep should KOOL-ROD be set?
Install it at the depth recommended by the sealant manufacturer, specifier, or architect. Generally, the joint depth left after the rod is installed should be half the joint width, although very large and very small joints vary from this ratio.
How is KOOL-ROD installed?
Confirm the joint is clean, dry, and free of obstructions. Select the proper diameter, cut it to length or use it directly from the spool, and press it in uniformly with a blunt instrument or roller. Do not tear, puncture, twist, or overly compress the rod, and avoid voids that could trap air or moisture between the rod and the sealant.
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