Description MASTERTOP 1123 is a static conductive system utilising an epoxy top coat. A hard solvent-free two component, self-smoothing epoxy based compound that produces hard-wearing floor surfaces.
- 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 PRIMER 6 - Is an electrically conductive, water based epoxy primer for use on MASTERTOP PRIMER 2 in combination with MASTERTOP BODY COAT 38 AS to produce static conductive floor coating meeting the requirements of DIN 51953 for use in rooms where sensitive electronic equipment is used as well as rooms where explosion hazards exists.
- MASTERTOP BODY COAT 38 AS - Is a solvent-free, pigmented two component coating based on epoxy resins that produces hard-wearing static conductive industrial floors.
Primary uses
As a conductive flooring system in electronic and explosion risk areas.
Packaging
MASTERTOP 1123 is supplied as follows:
MASTERTOP PRIMER 2 - 30 kg
MASTERTOP PRIMER 6 - 15 kg
MASTERTOP BODY COAT 38 AS - 30 kg
Coverage
| MASTERTOP PRIMER 2 |
0.2-0.3kg/m² depending on surface texture and porosity. |
| MASTERTOP PRIMER 6 |
0.2-0.3kg/m² |
| MASTERTOP BODY COAT 38 AS |
2.0-2.5kg/m² |
Thickness
1.8-2.1mm
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 PRIMER 6 - Typical properties
| Mixing ratio A : B |
40 : 60 by weight |
| Density at 20°C, mixture |
1.07gm/cm³ |
| Solids content |
35 ± 2% |
| Pot life |
2 hours at 23°C / 50% RH |
| Curing at 23°C and 50% RH |
can be walked on after 6 hours |
| Overcoating time |
min. 8 hours, max. 24 hours |
MASTERTOP BODY COAT 38 AS – Typical properties
| Mixing ratio A: B |
100 : 16.6 by weight |
| Mixed density at 20°C |
approx. 1.5 gm/cm³ |
| Pot life at 20°C |
approx. 45 mins. |
| Curing time at 20°C |
Foot traffic, approx. 18 hours. To bear mechanical loads, approx. 2 days. To resist chemicals, approx. 7 days |
| Compressive strength |
approx. 55N/mm² |
Guide to application
Preparation:
Remove laitance, weak or friable concrete and all contaminants that could affect the bond to the substrate.
Suitable preparation includes light grit blasting, surface grinding etc. Surface defects should be repaired using CONCRESIVE 2200 or other suitable repair compounds from the CONCRESIVE or EMACO range.
Priming:
Mix and apply MASTERTOP PRIMER 2 surface conditioner to the prepared dust free surface at approximately 0.2-0.3kg/m².
Allow to dry.
For the production of anti-static floor coatings, do not broadcast sand into the MASTERTOP PRIMER 2.
Self adhesive copper tape with a cross section of 0.09 mm x 19 mm (e.g. 3M Scotch) is firmly applied to the cured MASTERTOP PRIMER 2 at distances of about 20 m. There should be an earthing point for every 100m² floor area. Floors of less than 100m² should have two earthing points.
Mix the two MASTERTOP PRIMER 6 components at the prescribed mixing ratio for at least 3 minutes using a slow running drill. Pour the mixed material into a clean container and re-mix. Application is by means of a lambswool roller to the surface prepared as above.
Do not apply MASTERTOP PRIMER 6 at temperatures below +12°C and above +30°C. The substrate temperature must be at least 3°C above the dewpoint.
Ensure good ventilation during the application.
Overlay application:
Mark the floor are out in 10 or 20m² areas so that consumption can be checked.
Mix the A and B components of MASTERTOP BODY COAT 38 AS together using a slow speed (300-400 rpm), drill fitted with a suitable mixing head. Mix until a uniform streak free colour is obtained. Pour the mixed material onto the floor and spread using a notched trowel to achieve the desired thickness. Roll with a spiked roller to release entrapped air and ensure a smooth surface. Allow to cure.
Note:
Before going ahead with the application of MASTERTOP BODY COAT 38 AS read the method statement and consult your local BASF representative.
Chemical resistance
Contact the Regional BASF 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.