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BACKING ROD Extruded Closed-Cell Polyethylene Rod An inexpensive, yet effective "backing", commonly referred to as Backer Rod. Backer Rod is an extruded, chemically inert, closed cell polyethylene "rope" designed to effectively fill in the gaps between logs prior to the application of Perma-Chink or Energy Seal.

Backer Rod is flexible and compressible; it conforms to the irregularities in the log surface. Its primary function is recognized as a median between the log gap and the chinking. Select the proper Backer Rod that fits flush with the logs.

For example, 1/2" rod should be used if your finished chinking application it to be approximately 1" wide (for a 6" thick round log). Place the rod in the joint. Be sure the edges are flush with the log surface.

Trap Rod fills in the gaps on all around log homes where an elasmomeric chinking is used. Trap Rod reduces the amount of Perma-Chink needed to effectively seal the gaps between logs. Perma-Chink will not adhere to the Trap Rod, only to the logs.

Snugly fit the Trap Rod into the gap with the narrow side in. When spacing permits, apply Trap Rod around jams or joints of windows, doors and soffits.

Before you install Trap Rod or Backer Rod make sure gap is free of moisture and foreign material. Directly place it into the gap using a blunt tool, face roller or the tips of your fingers. Apply Perma-Chink over Trap Rod or Backer Rod according to manufacturer's instructions.

Features and Statistics

• Closed cell
• Trapezoid or round
• Increases R value
• Cuts material costs considerably
• Extruded, chemically inert

GRIP STRIP Extruded Closed-Cell Polyethylene Grip Strip is a closed-cell product. Under normal use, it will not cause outgassing. It's unique design provides an excellent fit and surface within the chink joint. This results in a savings in material used.

ADVANTAGES:

• It provides a firm chinking or caulking surface
• Its shape and texture allow it to be easily installed without using staples, nails or glue
• It repels water. (Most open cell products absorb water)
• It’s compatible with all commonly available synthetic chinking
• It helps prevent blistering of chinking surfaces
• It provides extra insulation against heat loss
• It comes in a number of widths and it fits a wide variety of log styles

Round Backing Rod
Size	Box	Price ($)
1/4 inch	6400 feet	226.25
3/8 inch	3600 feet	177.50
1/2 inch	2500 feet	176.25
3/4 inch	1100 feet	153.75
1 inch	550 feet	137.50
TRAPEZOID BACKING ROD - GRIP STRIP BRAND
Size	Box	Price ($)
3/4 inch	1200 feet	183.90
1 inch	960 feet	192.30
1 1/4 inch	600 feet	195.91
1 1/2 inch	460 feet	191.10
2 inch	360 feet	194.48
3 inch	200 feet	214.33
4 inch	144 feet	212.81
5 inch	120 feet	216.55
6 inch	96 feet	216.55
Size	Unit	Price ($)
3/4 inch	300 pieces per box	0.92 per 4 ft. piece
1 inch	240 pieces per box	1.20 per 4 ft. piece
1 1/4 inch	150 pieces per box	1.96 per 4 ft. piece
1 1/2 inch	115 pieces per box	2.49 per 4 ft. piece
2 inch	90 pieces	3.24 per 4 ft. piece
3 inch	50 pieces per box	6.43 per 4 ft. piece
4 inch	36 pieces per box	8.87 per 4 ft. piece
5 inch	30 pieces per box	10.83 per 4 ft. piece
6 inch	24 pieces per box	13.53 per 4 ft. piece

If you would like more information or need a referral to an experienced contractor, or ready to place an order, contact your nearest Perma-Chink Systems, Inc. location.

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