Look to Mac/Tac Film for your next underground waterproofing system!
Mac/Tac Film is MacPave's "Tac-Back" water-proofing membrane designed specifically as a moisture barrier to prevent water penetration through surfaces and the subsequent damage that moisture causes.
Mac/Tac Film represents a second-generation peel-and-stick waterproofing system employing the latest asphalt technology and an adhesive formulation made specially to bond tenaciously to clean, dry surfaces. On vertical walls under cold, damp conditions, a small amount of an approved primer is required.
Specific
suitable applications for Mac/Tac Film include:
HIGHWAY INDUSTRY |
Box
culverts
Retaining walls
Abutment
Backwalls
Concrete pipe
Median & paved shoulder inlets
|
Catch
basins
Head
walls
Manholes
Barrier median inlets
|
HOUSING
INDUSTRY |
Foundations
Underground house roofs
|
Basements
Underground walls
|
Mac/Tac Film Application Procedures
Surface Preparation
A.
Surface must be clean and dry prior to Mac/Tac Film application.
B. PRIMER - use of a primer is
recommended for vertical walls. A latex emulsion is suitable at a rate of 1/10 gallon per
square yard. No prime coat is needed on horizontal surfaces above 50°F.
Placement Procedure
A. Remove release liner and place
adhesive side to surface.
B. Mac/Tac Film should be lapped 1" on previous roll.
C. Mac/Tac Film has been formulated with an extremely aggressive adhesive and is
very difficult to reposition when it comes in contact with a surface.
Storage
Mac/Tac Film should be stored indoors at
temperatures not to exceed 120°F.
For demonstration purposes:
Take the two pieces of samples, and on one of the samples, pull back the blue release sheet about an inch on one side. Lap the sticky side on top of the gray plastic film and press slightly on lap. Notice the complete seal that develops on lap.
It is recommended that an approved primer be applied to vertical walls.
Material comes in 42" wide x 48' long rolls.
ITEM SPECIAL - MAC/TAC FILM WATERPROOFING:
After completion of the box culvert and wingwalls, and before backfilling begins, the Contractor shall apply Mac/Tac Film Waterproofing to the structure. The entire top and side surfaces of the culvert shall be coated. At the ends, the Contractor shall treat the vertical joint between the wingwall and the culvert for its entire length at a width of two (2) feet onto the wingwall. The Contractor shall apply a primer, as specified by the manufacturer, to all concrete surfaces prior to the placing of the Mac/Tac Film. Mac/Tac Film is manufactured by the MacPave Corporation, Miamisburg, Ohio 45342.
Payment for all labor, equipment and materials (including the primer) needed to perform this item shall be included in the square yard unit price bid for item special, Mac/Tac Film Waterproofing.
