POLYUREA
MultiFLEX
304
Best use – Waterproofing
Applications
Coating
- Reservoirs and ponds (non-chemical)
- Light to moderate traffic floors
- Geotextiles, green roofs
Sealing
- Concrete foundations
- Concrete pools
- Tunnels, culverts and sumps
- Aquaculture and horticultural ponds
- Pipes, crawl spaces
- Dams
Manufacture of parts
- Foam blocks for various uses
- Mattresses for animals
- Safety cushions
MultiFLEX
304
MultiFLEX 304 is a 100% pure elastomeric polyurea of medium hardness used as a generic coating. It forms a monolithic barrier ideal for sealing and waterproofing work. This high performance coating, which offers an economical coating option, can be used on most substrates such as concrete, wood and steel. It is an ideal coating for waterproofing a foundation.
Physical properties
| Properties | Methods | Results |
|---|---|---|
| Hardness (Shore A/D) | ASTM D2240 | 90A/40D |
| Tensile strength (psi) | ASTM D638 | 1750 |
| Abrasion resistance (mg) | ASTM D4060 | 8.0 |
| Elongation (%) | ASTM D638 | 300 |
| Glass transition | D7028-07 | -54°C |
| Tear strength (N/mm) | ASTM D624 | 44 |
10-15 sec
Cure time
2-4 min
Dry to touch
1 h
Light traffic
12-24 h
Return to service*
30 min - 10 h
Recoat**
* Polyurea reaches its full maturity after a few weeks, varying according to the type of product and the different environmental conditions.
** If the time is exceeded, the use of a surface activator is necessary to apply another coat.
Characteristics
- Waterproofness and resistance to chemicals
- High adhesion on a wide variety of surfaces
- Good flexibility
- High elongation, up to three times its original length
- Versatile and efficient use
- Free from volatile organic compounds (VOCs)
100%
Solid by weight
1:1
Mix ratio A:B (by volume)
100%
Solid by volume
1 year
Shelf life
Equipment settings
| Description | Pression | Temperature |
|---|---|---|
| Hoses | Minimum 145 BAR | 2100 psi | 65°C | 150°F |
| Part A | 175 BAR | 2500 psi | 60°C | 140°F |
| Part B | 175 BAR | 2500 psi | 70°C | 160°F |
*The values indicated on this technical data sheet are based on tests produced under laboratory conditions. Equipment configurations as well as application conditions can produce deviations in the values of the final system. The user is responsible for the resulting performance and for ensuring that the product is what is needed for the application he intends to do with it. For best results, these settings should be used.
Surface preparation
Make sure you have a ready application surface free of dirt, dust, oil, grease or any other contaminant before you begin. A CSP-4 through CSP-5 surface profile is required for application to concrete to achieve the best possible adhesion, producing a profile equivalent to 60 grit sandpaper or coarser. In addition, make sure that the surface is dry and that the air temperature exceeds that of the dew point. If the product is applied to a concrete surface, a cure time of approximately 28 days is recommended for optimum adhesion. In some cases, the use of a primer may be necessary. Please see the MultiFLEX Application Guide for details on application, surface preparation and recommended thickness.
Available on demand
- UV stabilization and resistance additives
- Primers and surface activators
- Adhesion additives
- Solvents and cleaners
- Surface varnish
- Membrane protection products