Description A multi-component, polyurethane based system for the protection of concrete floors subject to medium-heavy traffic (fork lift trucks, pallet trucks etc.).
- 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 31 - Is a hard but flexible, solvent-free 2-component, self-smoothing compound based on PU that produces hard-wearing, smooth or non-slip floor surfaces.
- MASTERTOP TOP COAT 42P - Is a solvented 2-component polyurethane coating which, when applied to MASTERTOP coatings, produces a flexible wear-resistant surface.
Primary uses
Industrial floors which require a smooth matt silk finish for medium to heavy duty applications.
Packaging
MASTERTOP 1324 is supplied as follows:
- MASTERTOP PRIMER 2 - 30 kg
- MASTERTOP BODY COAT 31 - 30 kg
- MASTERTOP TOP COAT 42P - 10 kg
Coverage
| MASTERTOP PRIMER 2 |
0.2-0.3kg/m² depending on surface texture and porosity. |
| MASTERTOP BODY COAT 31 |
Approx. 1.8 kg - 3.0 kg/m² |
| MASTERTOP TOP COAT 42P |
0.08-0.12kg/m² per coat |
Thickness
1.5-2.5mm
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 31 - Typical properties
| Mixing ratio A: B |
5 : 1 by weight |
| Mixed density at 20°C |
approx. 1.55gm/cm³ |
| Flash point |
Part A/B > 200°C |
| Tensile strength DIN 53 504 |
approx. 30 N/mm² |
| Breaking elongation DIN 53 504 |
approx. 10% |
| Pressure resistance |
approx. 65 N/mm² |
| Flexural strength |
approx. 32 N/mm² |
| Shore-D-hardness |
75 |
| Elasticity module DIN 53 457 |
approx. 1200 N/mm² |
| Application time |
approx. 30 mins. at 20°C |
| Recoatable after |
min. 6 hours, max. 72 hours at 20°C |
| Curing time |
To bear mechanical loads at +5°C, approx. 24 hours. To bear mechanical loads at +15°C, approx. 12 hours. To resist chemicals at + 5°C, approx. 5 days. To resist chemicals at + 15°C, approx. 3 days |
MASTERTOP TOP COAT 42P - Typical properties
| Mixing ratio A:B |
10 : 1 acc. to weight |
| Mixed density |
approx. 1.0g/cm³ MASTERTOP TOP COAT 42P, colourless |
| |
approx. 1.3g/cm³ MASTERTOP TOP COAT 42P, coloured |
| Curing at 20°C at 60% rel. atm. Humidity |
to be walked on after approx. 16 hours capable of bearing loads after approx. 48 hours |
| Recoatable after |
24 hours at the earliest at 20°C after 3 days at the earliest at 10°C |
| Note |
If the seal is recoated earlier, a glossy surface must be expected |
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 +20°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.
Maximum moisture content 5% by weight of concrete.
Steel:
Prepare surface by means of grit blasting, high pressure water jetting or other suitable means to Swedish standards SA 2½. The amplitude of the profile to be greater than 20 microns.
Asphalt:
Contact your local BASF Representative.
Wood:
Timber must be sound and free of substances that might impair adhesion.
Conditioning:
Cement bound substrates.
The substrate must be sealed using MASTERTOP PRIMER 2.
Mix the A and B components of MASTERTOP PRIMER 2 together according to the datasheet.
Using a suitable roller, apply the sealer at the rate of
0.2-0.3kg/m² depending on substrate profile and porosity. Scatter SRA No. 3 into the wet surface at the minimum rate of 0.5kg/m². Allow to cure for 5 hours at 20°C.
Smooth finish
- Mix the A and B components of MASTERTOP BODY COAT 31 mix using a drill and paddle operating at 300-400rpm. Add 15kg of SRA No. 1 whilst continuing to mix.
- When the mix looks uniform, pour the material into a clean container and remix for about 45 seconds.
- Pour the mixed material onto the sealed surface in pools or as a long strip.
- Using a trowel, pin screed or notched trowel spread the MASTERTOP BODY COAT 31 to the required thickness.
- To release trapped air and assist with the smoothing operation roll the material within 5 minutes after it is levelled, using a spiked roller. The operative using the spiked roller must wear spiked shoes so that he can walk in the wet MASTERTOP BODY COAT 31.
- Allow to cure 12 hours at 20°C before allowing light traffic.
- To protect from UV attack and / or to improve chemical resistance MASTERTOP BODY COAT 31 can be overcoated with MASTERTOP TOP COAT 42P.
- To achieve a non-slip textured finish apply
- MASTERTOP BODY COAT 31 mixed as points 1 and 2 but applied at 1kg/m².
- When the material has been levelled broadcast SRA No. 3 to saturation (1.5-2kg/m²).
- Allow to cure for 8 hours at 20°C, then remove excess aggregate. Remove prominent aggregate particles by scraping the surface with the edge of a trowel. Vacuum clean to remove loose aggregate. Apply the top coat of MASTERTOP BODY COAT 31, mixed without the addition of aggregate, at the rate of 0.8kg/m² using a squeegee / wiper or medium pile roller.
- Allow to cure for 12 hours at 20°C before allowing use by light traffic.
- To provide UV protection apply a sealer coat of MASTERTOP TOP COAT 42P.
Note: Detailed method statements should be requested and referred to as part of the application planning process.
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.