Product Data Sheet Show all documents
Sika Thoroseal® Acryl 60

Sika Thoroseal® Acryl 60

(former MasterEmaco® A 660)

WATER-BASED ACRYLIC BONDING AND MODIFYING ADMIXTURE

Sika Thoroseal® Acryl 60 is an acrylic-polymer emulsion that enhances the adhesion, physical properties, and durability of Portland cement mortars, plasters, stucco, and concrete mixes. 

  • Acrylic polymer significantly improves adhesion, cohesion, tensile, compressive, and flexural strengths of cement-based materials
  • Excellent chemical and UV resistance promotes long-lasting repairs
  • Improves freeze/thaw stability of Portland cement-based materials for durability in cold climates
  • Retains stability when exposed to water for long-term performance of repairs
Product Data Sheet Show all documents

Usage

  • Interior and exterior
  • Above or below grade
  • Horizontal, vertical, and overhead surfaces
  • Improve adhesion and durability of cement-based mixes
  • As gauging liquid for Sika waterproofing and repair products, such as Sika Thoroseal®-581
Substrates
  • Concrete
Industries/Sectors
  • Commercial
  • Residential
  • Building Restoration
  • Infrastructure
 

Advantages

  • Acrylic polymer significantly improves adhesion, cohesion, tensile, compressive, and flexural strengths of cement-based materials
  • Excellent chemical and UV resistance promotes long-lasting repairs
  • Improves freeze/thaw stability of Portland cement-based materials for durability in cold climates
  • Retains stability when exposed to water for long-term performance of repairs

Packaging

Sika Thoroseal® Acryl 60

  • 1-gallon (3.8 L) bottles
  • 5-gallon (18.9 L) pails
  • 55-gallon (208 L) drums

Product Details

Product Information

Chemical Base

Sika Thoroseal® Acryl 60 is an acrylic-polymer emulsion.

Shelf Life

1-gallon 5-gallon, 55-gallon drums: 12 months when properly stored.

Storage Conditions

Transport and store in unopened containers between 40° and 100 °F (4° and 38 °C). Protect from freezing.

Density

8.65 lbs/gal (1.04 kg/L)

(Lab Method)

Solid content by mass

28% by Volume

(Lab Method)
Technical Information

Specific Advice

Maximum Water Dilution

1 part Sika Thoroseal® Acryl 60 to 3 parts H2O

(Lab Method)

Indicative performance of mortar mix

Test Data
The following properties are for sand/cement mortar samples:

PropertyResultsResultsTest Methods

With Water

With 1-to-1 Sika Thoroseal® Acryl 60

Compressive Strength, 28 days

3,800 (26.2) psi (MPa)

4,500 (31) psi (MPa)

ASTM C 109

Tensile Strength, 28 days

225 (1.5) psi (MPa)

350 (2.4) psi (MPa)

ASTM C 190
Flexural Strength, 28 days1,000 (6.9) psi (MPa)1,800 (12.4) psi (MPa)ASTM C 348
Freeze/Thaw Durability11 at 98 cycles102 at 300 cyclesMethod A

Test results are averages obtained under laboratory conditions at 70 °F (21 °C) and 50% rh. Reasonable variations
can be expected.

Application

Consumption

Coverage

Varies according to application. See Mixing Ratio table.
Application steps

SUBSTRATE PREPARATION

  1. Follow surface preparation recommendations for repair material to be used.
  2. The area to be patched or coated should be in a saturated surface-dry (SSD) condition, with no standing water on surface.
  3. For additional surface preparation guidelines, refer to the instructions for the Sika repair mortar or coating being used.

MIXING

  1. 1 part of Sika Thoroseal® Acryl 60 is typically mixed with 3 parts of potable water. Where increased physical and chemical resistance are required, increase the Sika Thoroseal® Acryl 60 water ratio to 1:2 or 1:1 (see Mixing Ratio table below).
  2. Mechanically mix at low speed to avoid trapping air. Do not overmix or mix at a high speed.

Mixing Ratios

Application

Ratios

To improve the adhesion properties of pointing mortars and to reduce cracking in cement plaster

Use 1-part Sika Thoroseal® Acryl 60 to 3-parts water

For large overlays or topping

Use 2-parts Sika Thoroseal® Acryl 60 to 1-part water

For bonding cement plaster no thicker than 1/4–3/8” (6–10 mm)Use 1-part Sika Thoroseal® Acryl 60 to 3-parts water

Note: The above ratios are for normal conditions. Where bonding is more critical, increase the Sika Thoroseal® Acryl 60
content of the mixing liquid. A TEST PATCH IS ALWAYS RECOMMENDED.

APPLICATION

Sand/Cement Mortar

  1. Thoroughly mix all cement and sand first.  The sand must be clean, free of clay, and dry.
  2. Makeup mixing liquid from a 1:3 or 1:2 Sika Thoroseal® Acryl 60/water mix, depending on requirements.
  3. Slowly add the mixing liquid to the cement/sand mixture and mix with a slow-speed mixer for 1-2 minutes to avoid trapping air.
  4. After preparing, cleaning, and pre-dampening the surface, brush-apply a scrub coat (not diluted) of the Sika Thoroseal® Acryl 60-modified cement/sand. Scrub vigorously into the surface to displace any air pockets.
  5. While the scrub coat is still wet or tacky, fill the repair area with the modified cement/sand mix, being careful not to over-trowel. The trowel should be cleaned frequently, kept wet, and used with minimal pressure.
  6. Maximum time for placement should not exceed 20 minutes. Higher air and surface temperatures or the use of fast-setting repair materials will decrease working and placement time.

Curing

  1. When rapid drying is expected due to high temperatures, rapid air movement, or wind, it is recommended that the surface be covered with wet burlap to retain moisture.
  2. For normal use, allow a 24-hour curing period.
  3. For heavy-wheeled traffic, allow a 4-day curing period.

CLEANING OF TOOLS

Clean all tools and equipment immediately with water. Cured material may be removed by mechanical means.

 

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