AQUAFIN®-2K/M
Flexible, two-component cementitious waterproofing coating for basements, roof slabs, water tanks, and wet areas.
Properties
AQUAFIN®-2K/M is a flexible elastomeric, 2-comp. polymer modified coating that waterproofs and protects concrete, masonry, brick and some natural stone substrates with crack-bridging properties. AQUAFIN®-2K/M has excellent adhesion characteristics and provides a seamless system which can be left as the finished surface, or can be top-coated with tiles, pavers, paint or other coatings.
Key Benefits
- Flexible and crack-bridging waterproofing protection
- Suitable for positive and negative side waterproofing
- Can be used on concrete and masonry surfaces
- Resistant to water pressure and weather exposure
- Compatible with common waterproofing systems
Where This Product Fits in the System
Technical Data
| Property | Specification |
|---|---|
| Adhesion strength | Approx. 1.5 N/mm² at 28 days |
| Tensile strength | 4.2 N/mm² (ASTM D 412-98a) |
| Elongation | 115% (ASTM D 412-98a) |
| Crack bridging | 2.59 mm (ASTM C 836:95) |
| Water permeability | Nil at 5 bars (BS EN 12390) |
| Abrasion resistance | 109 mg (ASTM D 4060:01) |
| Shore A | Approx. 8.5 |
| Initial surface absorption | Nil (BS 1881 Part 208:96) |
| Rapid chloride permeability | 86% reduction (ASTM C 1202:97) |
| Vapor diffusion resistance number | Approx. 1,000 μ |
| Sd-value | Approx. 2 m |
| Sd-value, CO₂ | Approx. 211 m |
| Flammability class | B2 (DIN 4102 Part 1) |
Product Application
- The surface must be clean, sound, and fine-pored.
- The substrate must be free from grease, dust, pockets, cracks, and ridges.
- AQUAFIN®-2K/M is suitable for smooth concrete, screed, mastic asphalt, plaster, gypsum board, and masonry.
- Coarsely pored surfaces, such as gutter blocks or precast concrete blocks, should be grouted with cement mortar, ASOCRET FS, or AQUAFIN®-1K.
- Highly absorbent surfaces, such as lightweight concrete or gypsum boards, should be primed with ASO®-Unigrund to improve adhesion.
- Substrate preparation should be selected according to surface condition.
- Suitable preparation methods include brushing, vacuuming, grinding, milling, shot blasting, and water jetting.
Application Mixing
Pour approx. 2/3 of the liquid component UNIFLEX®- M into a clean container and add AQUAFIN powder component whilst stirring until a lump-free mass is achieved. A mixing time of 2-3 minutes is required. After that, add the remaining UNIFLEX-M and stir until a uniform consistency is achieved.
NOTE: Depending on the application, max 1.5% (approx. 0.5 l / 35 kg) water can be added during mixing in order to adjust application consistency.
Frequently Asked Questions
Yes. It can be used as part of a flexible waterproofing system for roof slabs, subject to surface preparation and system design.
Yes. It is suitable for water-retaining structures when applied according to the recommended waterproofing system.
Primer or surface conditioning depends on substrate condition and system requirement.
It can bridge small hairline cracks within its system capability, but active cracks and joints must be treated separately.
Need this product for your project?
Share your site condition with Grace Chemicals technical team and get the right product or complete system recommendation.
