MacWrap
Source: Parson Environmental Products, Inc.
MacWrap, an external seal for pipe and manhole joints, is a strong, multi-layered, reinforced collar that is waterproof and flexible. It can be used with joints that have been damaged in handling, which may otherwise be rejected.
The MacWrap, an external seal for pipe and manhole joints, is a strong, multi-layered, reinforced collar that is waterproof and flexible. It can be used with joints that have been damaged in handling, which may otherwise be rejected.
The MacWrap collar is secured around the joint with a steel strap on each side. The straps compress the mastic undersurface of the collar into the exterior of the pipe or manhole wall, providing a watertight seal.
The MacWrap is made up of two layers. The bottom layer (next to the pipe) is made of a tough, woven polypropylene fabric with a thick rubberized mastic coating, with a pliable protective paper, that is removed when the collar is applied to the pipe. The outer layer consists of an impervious polyethylene with a rubberized mastic that is bonded to the bottom layer. Between these layers are steel straps sheathed in tubes that allow the straps to slip freely and tighten aroundthe pipe.
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The MacWrap collar is secured around the joint with a steel strap on each side. The straps compress the mastic undersurface of the collar into the exterior of the pipe or manhole wall, providing a watertight seal.
The MacWrap is made up of two layers. The bottom layer (next to the pipe) is made of a tough, woven polypropylene fabric with a thick rubberized mastic coating, with a pliable protective paper, that is removed when the collar is applied to the pipe. The outer layer consists of an impervious polyethylene with a rubberized mastic that is bonded to the bottom layer. Between these layers are steel straps sheathed in tubes that allow the straps to slip freely and tighten aroundthe pipe.
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