Sealmastic 520 W/P Emulsion
W.R. Meadows Sealmastic 520 Waterproofing Emulsion is a mineral colloid waterproofing emulsion for use as a damp-proof coating. With the addition of reinforcing fabric, it can also be used as a waterproofing coating. Particularly suited for use on PWF foundation or over Styrofoam or any substrates, which would be subject to breakdown with the use of cutback asphalt coatings. Size: 20 L.
Applications
Sealmastic 520 Waterproofing Emulsion is designed for use on concrete, wood, masonry, gypsum, insulation of all types, and asbestos.It is used for damp-proofing and waterproofing bridge decks, split slab floors, parking decks, foundation walls and footings. Sealmastic 520 Waterproofing Emulsion is a versatile damp-proofing material and is compatible with Styrofoam,
Limitations
It is a water/asphalt emulsion and will freeze. Do not allow to freeze.
Standards
Complies with CAN/CGSB-37.2-M88. TO be applied according to CAN/CGSB-37.3-M89. Reinforcing fabric for use with waterproofing emulsion should meet CGSB 37-GP-63M,
Specifications
- Color: Black
- Solids: 54%
- Drying Time-Touch Dry: 2 hours
- Drying Time-Firm Dry: 24 hours
- Application Temperature: 2C (35F) Minimum
- Flammability when Wet: Non-combustible
- Flammability when Dry: Burns
- Service Temperature: to 95C (203F)
Preparatory Work
Surface should be firm and free from loose particles, cracks, grease, oil, frost, ice, and other foreign matter. Surface may be damp, but not wet. Prime with 50% diluted Sealmastic 520. Dilute with clean water only.
Safety Precautions
Harmful if swallowed
Working Characteristics
- Coverage Damp-proofing: 2sq.m/L (100sq.ft/L)
- Coverage Water-Proofing: 1 sq.m/L/ply (50 sq.ft/gal/ply)
The number of plies will depend on the depth of the structure below grade. The following is suggested:
- Depth to 3m (9.8 ft): 2 plies
- Depth to 6m (19.7 ft): 3 plies
- Depth to 9m (29.5 ft): 4 plies
For depths greater than 9m (29.5 ft) add one ply for each additional 3m (9.8 ft). This table is a guide only. Individual design analysis is required. Waterproofing emulsion can be sprayed;please consult technical representative for recommended equipment.
Installation instructions
Damp-Proofing
- Mix thoroughly
- Apply by brush, trowel, glove or sprayer at a minimum rate of 4.1sq.m/L (200sq.ft./gal)
- Protect uncured emulsion from precipitation
- Protect walls with protection board during backfill operations.
Water-Proofing
- Mix thoroughly
- Apply by brush, trowel, glove, or sprayer at a minimum rate of 1.5sq.m/L (75 sq.ft/gal)
- Embed a ply of reinforcing fabric into the emulsion, lap edges 50 mm (2")
- Apply another coat of emulsion, make sure that no fabric is showing
- Continue this program until the required number of plies have be applied
- No ply of reinforcing should be applied until the preceding ply is dry.
- Protect uncured emulsion from precipitation
- Protect walls with protection board during backfill operations
- Use water for cleanup of uncured emulsion
- Use mineral spirits for cleanup of cured emulsion.
