The Most Tested Expansion Joints in the Industry

FIELD SPLICE PROCEDURE

Neoprene & EPDM

• Butt Splice Process:

• Use a miter box saw, with the teeth edge of the saw ground off to a razor edge.

• When cutting the profile with the modified box saw, use slow forward strokes so as to eliminate any distortion of the rubber profile during the cutting process. The use of a spray bottle, filled with water will provide continuous lubrication during the cutting process. NEVER use oils or other lubricants on the seal.

• After cuts are complete, dry fit the ends for alignment. Inspect the cut ends for proper fit; there shall be a hairline fit between the two cuts. If there are voids between the two seals to be mated, use a hand or belt grinder to grind the mating ends flat and flush, as recommended. Clean off all dust and contaminants from the end of the seal.

• Apply a thin layer of profile glue to one of the seal ends that is to be spliced. Press together firmly and align the two profiles of the mating seals. Hold the seal splice in position for sixty seconds. After the seal is spliced, inspect the connection closely, looking for any gaps or suspect areas. If necessary, apply a light bead to the area in question; allow to dry and then proceed with the installation as usual.

• Field Splice of Intersecting at 90 Degree Turns:

• At 90 vertical or horizontal direction changes, miter mating seal ends to half the desired total angle of change desired. For 90 up turns bevel cut mating 45 angle cuts to each seal end.

• After cutting is complete, dry fit the ends for alignment. Inspect the cut ends for proper fit; there should be a hairline fit between the two cuts. Check for the desired angle. If there are voids between the two seals to be mated, use a hand or belt grinder to grind the mating ends flat and flush, as recommended. Clean off all dust and contaminants from the end of the seal.

• Apply a thin layer of profile glue to one of the seal ends that is to be spliced. Press together firmly and align the two profiles of the mating seals. Hold the seal splice in position for sixty seconds. After the seal is spliced, inspect the connection closely, looking for any gaps or suspect areas. If necessary, apply a light bead to the area in question; allow to dry and then proceed with the installation as usual.

• Tee Connection Treatment at Intersection:

• Tee connections at intersections require no mitering of mating seal ends. The primary joint line will pass through the intersection. The side of the seal at the intersection should have the side fins ground flush with the root depth of the side wall of the seal. The width and depth of the grind is determined by the size and width of the secondary seal at the intersection.

• Prepare the secondary seal ends to glue onto the side wall of the primary seal. A contour cut on the end of the secondary seal should exactly match the side of the primary seal.

• After cutting is complete, dry fit the ends for alignment. Inspect the cut ends for proper fit; there should be a hairline fit between the two cuts. Check for the desired angle. If there are voids between the two seals to be mated, use a hand or belt grinder to grind the mating ends flat and flush, as recommended. Clean off all dust and contaminants from the end of the seal.

• Apply a thin layer of profile glue to one of the seal ends that is to be spliced. Press together firmly and align the two profiles of the mating seals. Hold the seal splice in position for sixty seconds. After the seal is spliced, inspect the connection closely, looking for any gaps or suspect areas. If necessary, apply a light bead to the area in question; allow to dry and then proceed with the installation process.

• Apply profile glue to the entire surface of the end capped secondary seal. Align the seal to the primary seal side, which has been ground and cleaned. Press the connections firmly together for sixty seconds. After the end cap is glued, inspect the connection closely, looking for any gaps or suspect areas. If necessary, apply a light bead to the area in question; allow to dry and then proceed with the process.

• Cross and Irregular Intersections:

• Cross connection intersections require no mitering of mating seal ends. The primary joint line will pass through the intersection. The sides of the seal at the intersection should have the side fins ground flush with the root depth of the side wall of the seal. The width and depth of the grind is determined by the size and width of the secondary seal at the intersection.

• Prepare the secondary seal ends to glue onto the side wall of the primary seal. A contour cut on the end of the secondary seal should exactly match the side of the primary seal.

• After cutting is complete, dry fit the ends for alignment. Inspect the cut ends for proper fit; there should be a hairline fit between the two cuts. Check for the desired angle. If there are voids between the two seals to be mated, use a hand or belt grinder to grind the mating ends flat and flush, as recommended. Clean off all dust and contaminants from the end of the seal.

• Apply a thin layer of profile glue to one of the seal ends that is to be spliced. Press together firmly and align the two profiles of the mating seals. Hold the seal splice in position for sixty seconds. After the seal is spliced, inspect the connection closely, looking for any gaps or suspect areas. If necessary, apply a light bead to the area in question; allow to dry and then proceed with the installation process.

• Apply profile glue to the entire surface of the end capped secondary seal. Align the seal to the primary seal side, which has been ground and cleaned. Press the connections firmly together for sixty seconds. After the end cap is glued, inspect the connection closely, looking for any gaps or suspect areas. If necessary, apply a light bead to the area in question; allow to dry and then proceed with the process.

• Equipment List:

• Miter box saw with the teeth edge ground off to create a razor-sharp cutting edge.

• 4” hand grinder with abrasive wheel.

• Stiff nylon brush.

• Lean cloth rags.

• Neoprene end cap material 1/8” thick.

• A pair of scissors to cut neoprene sheet.

• Profile adhesive.

• Combination Square.

• Spray water bottle for lubricant.

• Miter box

• Safety glasses