Description
A polyurethane based flooring system for commercial and institutional applications.
- MASTERTOP PRIMER 2 - Is a solvent free, two component, low viscosity epoxy preconditioning coat/primer, which stabilises the prepared substrate; acts as the bonding media for the aggregate key, and isolates subsequent PU coatings from the alkalinity of concrete, which is known to assist degradation of polyurethanes. MASTERTOP PRIMER 2 exhibits a high degree of capillary-pore penetration and will prevent rising damp from reaching subsequent coatings.
- MASTERTOP BODY COAT 32 - Is a two component solvent free polyurethane. The tough elastic liquid applied floor covering has excellent sound deadening and fatigue reducing properties.
- MASTERTOP TOP COAT 44P - Is a solvented 2-component polyurethane coating which, when applied to MASTERTOP systems, produces a permanently elastic, wear-resistant surface. It is available with a matt, silk or gloss finish.
Primary uses
As a sound deadening, comfortable system where heavy pedestrian traffic is anticipated i.e. corridors, production areas, hospitals.
Packaging
MASTERTOP 1325 is supplied as follows:
MASTERTOP PRIMER 2 - 30 kg
MASTERTOP BODY COAT 32 - 30 kg
MASTERTOP TOP COAT 44P - 10 kg
Coverage
| MASTERTOP PRIMER 2 |
0.2-0.3kg/m² depending on surface texture and porosity. |
| MASTERTOP BODY COAT 32 |
2.0-2.5kg/m² |
| MASTERTOP TOP COAT 44P |
0.08-0.12kg/m² per coat. |
Thickness
Approximately 2-2.5mm
Typical properties*
MASTERTOP PRIMER 2 - Typical properties
| Mixing ratio A:B |
100 : 45 by weight |
| Mixed density at 20°C |
approx. 1.09 gm/cm³ |
| Application time |
approx. 30 mins. at approx. 20°C |
| Application temperature |
+8°C - +40°C substrate temp |
| Recoatable after |
approx. 3 hours at +30°C |
| |
approx. 5 hours at +20°C |
| |
approx. 10 hours at +10°C |
| Tensile strength DIN 53455 |
approx. 30 N/mm² |
| Breaking elongation DIN 53455 |
approx. 5% |
| Compressive strength |
90-100 N/mm² (depending on the aggregates) |
| Flexural strength |
65-70 N/mm² |
| E-module |
3000-3300 N/mm² |
MASTERTOP BODY COAT 32 - Typical properties
| Mixing ratio A : B |
3.5 : 1 by weight |
| Mixed density at 20°C, mixture |
1.29 gm/cm³ |
| Viscosity at 20°C, mixture |
1,700 ± 400 mPas |
| Pot life at 20°C |
35 ± 5 minutes |
| Shore A hardness |
80 ± 5 (approx. 70 at 24 hours) |
| Tensile strength (DIN 53504) |
6-8 N/mm² |
| Elongation at break (DIN 53504) |
160 ± 20 % |
MASTERTOP TOP COAT 44P - Typical properties
| Mixing ratio part A : part B |
4 : 1 by weight |
| Density at 20°C, mixture |
1.05 gm/cm³ (colourless) |
| |
1.30 gm/cm³ (coloured) |
| Touch dry |
After approx. 4 hours |
| Curing, to foot traffic |
After 24 hours Bearing loads after approx. 3 days |
| Potlife at 20°C |
Approx. 1.5 hours |
Guide to application
Application temperature
The quality of the final coating is dependent on the substrate and the material temperatures. We recommend a substrate temperature of min. +10°C and max. +30°C. The optimal material temperature is +15°C to +25°C.
Surface preparation:
The surface to be coated must be clean and dry, free of laitance, oil, grease or any substance that may impair adhesion.
The preferred methods of preparation are; captive blasting, high pressure water jetting, surface grinding or similar. Weak or damaged concrete must be removed, then replaced with a suitable repair compound from the Emaco or Concresive range of products.
Surface conditioning / priming
The prepared surface must be conditioned to receive the MASTERTOP BODY COAT 32 by the application of MASTERTOP PRIMER 2 surface conditioner / sealer applied at the rate of 0.2-0.3kg/m² depending on the absorption of the concrete substrate.
Mixing:
Pour the B component into the A component and mix until streak free.
Do not mix more primer than can be used within 15 minutes at 25°C. See MASTERTOP PRIMER 2 technical datasheet.
Apply the mixed material by paint roller, brush or airless spray.
Into the wet coating, broadcast SRA No. 1 at the rate of 1.0-1.2kg/m² do not apply to excess, but do not leave bald areas.
Allow to cure for minimum 5 hours with a substrate temperature of 20°C or 3 hours at 30°C.
MASTERTOP BODY COAT 32 application:
Remove loose aggregate by vacuuming cleaning or sweeping. Scrape the edge of a trowel over the surface to remove aggregate that may be too proud of the surface and clean the surface again.
Mixing:
Mix the A and B components of the MASTERTOP BODY COAT 32 together adding 10kg of SRA No. 1 per 30kg unit whilst mixing. Use a slow speed (400 rpm) drill with a spiral mixing head. Work the mixer round the mixing pail to ensure it scrapes the side and bottom of the pail.
Application:
Pour the material onto the floor in pools and spread at the required coverage of 2-3kg of mixed material per m².
Allow to cure overnight.
Top coat / sealer:
MASTERTOP BODY COAT 32 must be sealed with MASTERTOP TOP COAT 44P to improve UV and abrasion resistance.
Application MASTERTOP TOP COAT 44P:
Pour the B component into the A component and mix until a uniform streak free colour is obtained.
Apply by roller or airless spray at 80-120m m w.f.t. per coat.
For light duty applications (pedestrian / rubber wheeled trolleys) apply one coat at 120m m w.f.t. For medium to heavy wear (heavy rubber wheeled and fork lift) situations or when chemical resistance is required, apply two coats of 100-120 microns m² w.f.t. each.
MASTERTOP TOP COAT 44P is normally applied, but not restricted to, elastic MASTERTOP products.
Chemical resistance
Contact your BASF Regional office.
Storage
Store under cover out of direct sunlight and protect from extremes of temperature. In tropical climates the product must be stored in an air conditioned environment.
Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult BASF's Technical Services Department.
Safety precautions
For further information, a material safety data sheet is available to the specialist applicator.
Note
Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local BASF representative.
BASF reserves the right to have the true cause of any difficulty determined by accepted test methods.
Quality and care
All products originating from BASF's Dubai, UAE facility are manufactured under a management system independently certified to conform to the requirements of the quality, environmental and occupational health & safety standards ISO 9000, ISO 14001 and OHSAS 18001.
01/99 BASF-ME revised 02/2003
* Properties listed are only for guidance and are not a guarantee of performance