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TREMproof 200EC :


Key Benefits Summary

Environmentally friendly.

Water clean up.

Convenient equal part mixing.

Non flammable.

Negligible odour and toxicity.

Excellent adhesion to brick, masonry, concrete, com- pressed fibreboard, stone and timber.

 

Standards

Approved for use with Potable Water - Conforms to AS4020 (1999).

 

Product Information

 

Description

TREMproof 200 EC is a two part waterborne epoxy coating system designed to act as a moisture and vapour barrier primarily over cementitious substrates.

 

Usage/Purpose

Recommended substrates

In-situ concrete

Brick, block and stone work

Fibre cement and ACC systems

Precast and tilt up panels

 

Pack Size        Colour     Product Code

20L                White      225200

Colour pack    Grey        225201

 

Technical Information

 

Composition

TREMproof 200EC is a uniform paste epoxy coating.

 

Characteristics

SPECIFIC GRAVITY    Approx. 1.25 @ 2 5 oC

VOLUME SOLIDS       50%

WEIGHT SOLIDS       65%

POT LIFE                  2 hours @ 25 oC

 

Performance (Typical Properties)

 

VISCOSITY

Approx. 50000cps - 100000cps

RE-COAT TIME  4 hours @  25 oC  50% RH

FULL CURE  7 days @ 25 oC  50% RH

WATER VAPOUR BARRIER

3m2/litre/coat

PRIMER/SURFACER

5m2/litre/coat

 

NOTE: Typical Properties should not be used as Specifications.

 

Usage Guidelines

 

Surface Preparation

All surfaces to be treated must be structurally sound and all previous coatings, adhesives, efflorescence or laitance should be removed by chipping, abrasive blast cleaning, high pressure water washing, mechanical scrubbing or other suitable means. All surfaces must be cleaned free from dirt, grease, oil or other surface contaminants. Holes, non-structural cracks and other surface deformities should be repaired using a Third Party product in accordance with the technical data sheets. Very porous or boney concrete may require 3 coats of TREMproof 200EC. The first coat acting as a primer, penetrating into the pores of the concrete. Dilute 20% water. Ensure recoat times are adhered to between applications (refer to precautions). A minimum of 4 hours is required between coats, preferably overnight if temperature is below  20 oC.

 

Mixing

Mixing should be by means of a mechanical forced action mixer with a high shear stirrer. First, premix each individual component to form a homogeneous paste.

Second, join the two components by equal volume, mixing thoroughly for a minimum of 5 minutes until a homogeneous blended paste is obtained. Avoid trapping air during mixing, this may cause later pin holing in the coating during application. Only mix as much as may be used within the pot life of the product.

 

Placing

TREMproof 200EC is a minimum two-coat system. The coverage rate as specified must be achieved to ensure transmission barrier and low permeability is obtained. Applying with a brush or roller, ensure to work the material into the substrate surface to fill voids and eliminate pinholing. Successive coats should be applied at right angles to the previous coat. It is recommended that as application progresses, the coating depth be tested at random points with a wet film gauge/ comb. Extreme care is necessary, and if required, protection should be provided to ensure TREMproof 200EC is not damaged in any way between or after final coating.

 

Clean Up

Wash all equipment in water or water/detergent immediately on completion of application and mixing. TREMproof 200 EC will cure under water, hence ensure dirty equipment is not left soaking in water.

 

Precautions

TREMproof 200EC cure rates will be dramatically reduced if relative humidity is above 85%. Do not add cementitious products to TREMproof 200EC. TREMproof 200 EC is a vapour barrier and not a waterproof membrane. TREMproof 200EC is not trafficable and must be covered with floor toppings, coatings or conventional coverings prior to foot or vehicle traffic introduction. In enclosed areas, such as water tanks or reservoirs, ventilation should be provided during curing cycle to enable adequate evaporation of the coating. Allow to cure for a minimum of 24 hours at 25C/50% R.H. before applying adhesives, mortars, decorative coatings or other surface treatments. TREMproof 200EC will tend to yellow when exposed to UV light. Discard any material that has exceeded the pot life or working time of the product. Do not apply over any substrates that have been previously treated or coated with curing compounds, PVA concrete bonding agents or acrylic coatings. These areas must be mechanically cleaned by grinding or shot blasting to produce a contamination free surface.

 

Cold Substrates and Cool Climate Conditions

TREMproof 200EC cure rates will be dramatically in- creased if substrate surface or ambient temperature is below +10 oC. If TREMproof 200EC is applied in cold or cooler climatic conditions, substrate temperatures can produce amine blush, resulting in an oily residue and/or areas of uncured tacky discolouration (usually off white or yellow). If amine blush or any other form of surface contamination or discolouration appears on the coating, TREMproof 200EC should be allowed to cure and then be washed with clean fresh water, Methylated Spirits or Xylene depending on the severity of the amine blush. Ensure thorough removal of contamination prior to the application of any further coating. Failure to perform this procedure will result in delamination between coatings. Follow the mixing instructions exactly. Mixing slightly longer (eg, extra 1 minute) after homogeneous paste is obtained is better than under mixing. Allowing the product to stand for approximately 5 minutes after mixing will assist in accelerating the drying reaction. Never apply thin coats as the rapid moisture loss will arrest or slow the drying reaction. Thin coats can result in amine blush presence on the surface producing uncured or tacky areas. If possible store the TREMproof 200EC in a 20oC environment 24 hours prior to use. If possible warm the substrate surface area where TREMproof 200EC is to be applied by air blower or use a blower after application.

 

Storage

Store between 10 oC and 30 oC.

 

Shelf Life

12 months when stored as recommended in original unopened packaging. Partly used continers must be sealed tight when not in use.

 

Health and safety precautions

The Material Safety Data Sheet (MSDS) must be read and understood prior to use

 

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