The original ZipStrip control joint is a rigid polystyrene extrusion that creates a straight line, controlled crack on the surface of all on grade slabs. ZipStrip eliminates random cracking in all variations and thicknesses of slabs where a control joint is required. ZipStrip is the economic alternative to saw cutting to create similar straight line surface joints.

ZipStrip is inserted in the concrete when the concrete is still wet, preferably after screeding and tamping. A straight vertical line of weakness is formed where ZipStrip was inserted. The top portion of the ZipStrip is removed leaving the vertical portion in the concrete to form a weakness in the surface of the slab to the ground. The new joint can be tooled with a radiused edger or the surface of the slab can be finished over the top of the joint. As the slab shrinks during the normal curing process a slight straight line separation on the surface of the slab will appear where ZipStrip was inserted.

When panels are poured on top of the floors in tilt up construction where ZipStrip was used, the probability of telegraphed lines on the exterior panels will be minimal eliminating the need for costly repairs.

A polystyrene expansion cap with a removable top, VoidCap can be placed over all types of expansion joint. After the concrete is poured the top of the VoidCap is level with the surface of the slab. After the surface of the concrete is finished, the top portion of the VoidCap can be removed leaving a void 1/2” deep. Any type of self-leveling caulk can be placed into the void sealing the joint from surface moisture.

NEW PVC VoidCap also available… Constructed of
Heavy-duty PVC with UV inhibitors that shield the VoidCap from the damaging ultra-violet (UV) rays from the sun.

KeyWay is a re-usable polyethylene strip that is nailed to a form or header before pouring. When stripped out later, a key way is left in the concrete. This key way is used to lock multiple on-grade slabs together in tilt-up buildings, industrial floors, curbs, driveways and wherever specified. Keyway will not split, chip or crack in any temperature. This re-usable polyethylene profile can be nailed or stapled to a form or header of any slab.

Polyfoam is a non-cross link, flexible polyethylene foam with a 1/2" score slit on one end. It is used in various concrete applications where an expansion joint is required. After the surface of the slab is finished, the top 1/2" portion of PolyFoam can be separated and removed from the bottom portion creating a 1/2" void at the surface of the slab. Latex, rubber or polysulfide sealants can be placed into the void.

Sill Seal Foam is a non-cross link, flexible polyethylene foam 1/4" thick and is available in 3-1/2", 5 1/2" and 7 1/2" widths. Rolls are 100 ft in length. This is often referred to as poly seal or sill plate. Sill seal is used to seal between framing and concrete floors and around windows and doors. It is also used to wrap water pipes for insulation.

The NEW, improved Double Chamfer features a re-designed profile configuration. Only one product is necessary for both top and bottom usage. When using the chamfer on top, the legs are stapled or nailed to both sides to create a seal and hold the chamfer to the form. Another new feature are the protruding nipples located on the bottom of the chamfer. They guarantee that the seal takes place if the form is not exactly flat.

In tilt-up construction, Double Chamfer is used on common forms of tilt-up panels where chamfered edges are required. It is economical and easy to apply. After the panels are raised the chamfered edges remain free of any needed further finishing. Double Chamfer is constructed with ultra-violet (UV) inhibitors to protect from the sun.

Expansion water stop made of polyvinyl strip is used primarily around swimming pools, decks, patios and walkways. This product provides weak and plane control joints in decking. Deckstrip includes tape along the top to protect exposed area during construction. Tape is removed when construction is complete.