MASTERTOP 1120 T 

Description

MASTERTOP 1120 T is a two component, solvented, epoxy resin coating specifically designed to provide continuous protection and an aesthetically pleasing finish for a variety of substrates including concrete and mortar surfaces. Ideal for use in light to medium duty situations. Apply by brush, roller or airless spray.

Primary uses

MASTERTOP 1120 T gives good general protection to concrete surfaces in numerous industrial and commercial applications. Specifically it can be used to provide a hard wearing, easily cleaned, non-dusting surface in production and warehousing areas subjected to foot and soft wheeled vehicle traffic.

MASTERTOP 1120 T offers resistance to a wide range of chemicals and aggressive solutions found in general industry, but as in all corrosive situations, a full analysis of operating and exposure conditions is required followed by reference to chemical resistance data, to ensure product suitability.

MASTERTOP 1120 T is frequently used as a top coat for MASTERTOP 1240 Plus floor finishes to provide a brighter more attractive sealed surface.

MASTERTOP 1120 T is used extensively in the following application areas:

• Engineering - including car production
• Aircraft maintenance and assembly
• Warehousing
• Laboratories
• Chemical production and processing
• Battery and pump rooms

Advantages

• Economical and easily applied
• Good wear and abrasion resistance
• Good general chemical resistance
• Easily cleaned, non dusting surface

Packaging

MASTERTOP 1120 T is supplied as a 4 litre dual unit. SOLVENT NO. 2 is supplied in 20 litre containers.

Hygiene

From all available information it has been found that MASTERTOP 1120 T shows a minimal risk of tainting foodstuffs after complete cure has taken place. However, there is a significant risk of tainting foodstuffs during curing. Therefore it is recommended that MASTERTOP 1120 T should not be applied where foodstuffs are being used, processed or stored.

Typical properties*

Application procedure

Preparation:

MASTERTOP 1120 T must be applied to a clean, dry substrate free from laitance, dust, dirt, oil, grease and other contaminants. A clean surface will ensure adhesion between substrate and overlay.

The method of surface preparation will be dictated by the size of area to be treated, location and degree of contamination. Specialist finishes should not be applied to concrete which contains more than 5% moisture by mass. The substrate can be considered sufficiently dry only when the Relative Humidity (RH) at the surface falls to 75% or less when measured with a hygrometer to BS 8201: 1987 Appendix A.

New construction:

Floors to be coated or overlaid should be at least 28 days old unless water reducing admixtures have been incorporated. Consult MBT ME's Technical Services Department for further advice.

The removal of laitance and contaminants is best achieved by mechanical means such as vacuum recovery shot blasting.

All contamination must be removed and a sound clean substrate exposed. Mechanical means of preparation are preferred followed by the removal of dust and other loose debris using an industrial vacuum.

In areas of deeply penetrating contamination by oils, greases and fats, hot compressed air, treatment followed by impregnation with a low viscosity sealer / primer is the recommended treatment.

Uneven concrete should be levelled to produce a smooth flat surface. For heavy wear situations a suitable repair mortar or epoxy screed from the EMACO or MASTERTOP ranges should be used.

Priming:

Brush or roller apply a priming coat consisting of MASTERTOP 1120 T diluted with SOLVENT NO. 2. The primer should be allowed to dry for a minimum of 4 hours and a maximum of 24 hours before overcoating with MASTERTOP 1120 T.

Mixing:

MASTERTOP 1120 T is supplied in two components; Part A and Part B. Thoroughly mix the two components using a slow speed drill with a suitable paddle, making sure to reach the bottom and sides of the can. Continue mixing for 1-2 minutes to produce a fully blended, uniform material. It is important to maintain constant mixing times throughout contracts to ensure consistent colour and to avoid introducing excessive air into the system.

Application:

Apply 2 coats of MASTERTOP 1120 T allowing a minimum of 4 hours between coats, and a maximum 24 hours. Apply the second coat at right angles to the first.

To ensure specified performance, a minimum temperature of 10°C should be maintained during the curing period, by the use of additional heating if necessary. MASTERTOP 1120 T should be allowed 24 hours at this temperature prior to receiving light traffic. Full cure is achieved after 7 days.

To get a non-slip coating immediately broadcast Mastertop Aggregate SRA No. 3 onto the wet coat at the rate of 1.5-2kg/m².

Coverage

The following coverage rates have been calculated using theoretical and practical data and include an allowance for wastage. Coverage rates will vary according to the nature of the substrate.

Priming:

MASTERTOP 1120 T mixed with 10% SOLVENT NO. 2

8-10m²/litre.

MASTERTOP 1120 T

5 - 6m²/litre/coat

The application rates will give an approximate dry film thickness (D.F.T.) of 100 microns per coat.

All calculated usages assume constant thickness on a regular substrate. Failure to achieve the required surface regularity will lead to additional material being used.

Watchpoints

MASTERTOP 1120 T is a solvented system. During application, drying and curing, sufficient ventilation must be provided. Do not use where contamination of foodstuffs could occur during initial cure.

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. Shelf life is up to 1 year when stored as above.

Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult MBT's Technical Services Department.

Note

Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local MBT representative.

MBT reserves the right to have the true cause of any difficulty determined by accepted test methods.