BASF

MasterSeal 581 - formerly Thoroseal

$42.62 - $49.11
Sprayable
Availability:
In Stock
SKU:
MasterSeal 581 multiple
Waterproof cement-based coating for concrete and masonry
Can be used on vertical interior or exterior surfaces
Certified to the NSF/ANSI Standard 61 for potable water contact
Adding to cart… The item has been added

Product Description

Cement based waterproofing for concrete. Mixed with MasterSeal A660 (1-1/2 quarts A660 with 4-1/2 quarts water per bag) and diluted with clean, potable water to produce a cementitious coating that is used to seal, waterproof and protect concrete and masonry substrates. Can be used on interior or exterior, above or below grade applications.

Benefits: 

  • Waterproof to help protect building interiors from dampness and moisture damage
  • Resistant to both positive and negative hydrostatic pressure, making MasterSeal 581 suitable for use below grade interior and exterior and in water treatment construction
  • Breathable, allowing interior moisture to escape without damaging coating
  • Compatible with high-performance coatings, including a wide range of architectural coatings and textured finishes
  • Hides minor surface defects and blemishes in architectural concrete
  • Certified to the NSF/ANSI Standard 61 for potable water contact

Applications:

  • Vertical surfaces
  • Interior and exterior
  • Above and below grade
  • Waterproofing basement and retaining walls
  • Foundations

Limitations: This product is not color uniform, adequately ventilate for proper curing in enclosed areas; not intended to be used as a wearing surface; protect surfaces not being coated; metal, glass and wood.

Coverage
1st Coat: 225 ft²/bag; 2nd Coat: 450 ft²/bag.
Initial Set
10 min @ 70°F
Final Set
90 min @ 70°F
Mixing (dilution ratio with A660)
1-part A660 (1-1/2 quarts) to 3-part water (4-1/2 quarts)
Mixing (total liquid needed per bag)
6 quarts
Re-coat time
24 hrs

Video

Documentation

Contact us for Data and Safety Data Sheet documentation

Related Products