For use with cement mortars and concrete mixes to give:

• Excellent water resistance

• Enhanced adhesion

• Good flexibility

• Improved workability with a smooth, “buttery” plaster flow

• Increased strength, resilience and load-bearing properties

• Reduced shrinkage and micro-cracking

• Improved bonding to brick, plaster, concrete and masonry

• Reduced risk of efflorescence (not guaranteed — see explanation below)

Damp Prevention & Water Tanking

CLASSIFLEX™ helps prevent damp on:

• Interior and exterior walls

• Shower floors and walls

• Retaining walls

• Concrete decks and balconies

• Reservoirs, tanks, ponds and dams

• Garden walls and walkways

Creates an impermeable waterproof barrier ideal for tanking basements, below-ground walls, and damp walls above ground.

WHY CLASSIFLEX™ MUST BE USED ON CONCRETE DECKS, BALCONIES & FLOORS

Concrete decks and other horizontal surfaces suffer from:

• Standing water

• Slow drainage

• Thermal expansion

• Foot traffic

• Weathering

• Micro-cracking

• Surface absorption

CLASSIFLEX™ provides:

• Strong waterproofing of horizontal surfaces

• Reduced porosity and water absorption

• Improved flexural strength to resist cracking

• Superior adhesion on dense concrete

• Increased abrasion and impact resistance

• Reduced efflorescence caused by moisture migration

• A tough, flexible polymer-reinforced cement matrix

• Dramatically improved durability and lifespan

CLASSIFLEX™ is essential for all exposed concrete decks, balconies and screeds.

Level of Usage

• Standard: 20% of cement weight

• Thin screeds / high-bond applications: 20–30%

• Compatible with Portland, High Alumina and fast-setting cements

• White cement may be added to lighten colour

KEY FEATURES & BENEFITS

CLASSIFLEX™ is non-toxic, non-corrosive, and easy to use. Prepare mortar normally, use less water, and add CLASSIFLEX™.

APPLICATION BENEFITS

• Superb workability – smooth, creamy, “buttery” application

• Easier trowelling and floating

• Less drag on walls

• More even coating and smoother final surface

• Better slip resistance – plaster “hangs” better on vertical surfaces

• Reduces sagging, slumping and sliding during application

• Allows thicker coats without pulling loose

• Extends open time, giving better finishing control

• Requires less water, resulting in stronger plaster

PLASTER WALL PERFORMANCE BENEFITS

Superior Workability & Flow

• Buttery, creamy consistency

• Reduced labour fatigue

• Easier spreading and levelling

• Better finish with fewer tool marks

Stronger Bond to All Wall Substrates

• Old plaster

• Brick & block

• Concrete

• Screeds

• Properly prepared painted walls

Reduces:

• Delamination

• Debonding

• Hollow spots

• Peeling and blistering

Crack Resistance & Flexural Strength

• Reduces hairline cracks

• Resists thermal expansion

• Reduces crazing

• Stronger corners, edges and reveals

Reduced Shrinkage

• Less mixing water = fewer drying cracks

• Less micro-cracking

• More stable curing

Water Resistance on Plastered Walls

• Reduces absorption

• Prevents damp staining

• Improves exterior durability

• Reduces blistering and paint failure

Efflorescence Reduction (Accurate)

• Reduces water absorption

• Tightens the cement matrix

• Slows salt migration

Complete elimination not guaranteed — efflorescence may still occur with rising damp, high-salt substrates, or continuous moisture exposure.

Enhanced Durability

• Higher impact and abrasion resistance

• Stronger, denser plaster

• Resists knocks and daily wear

• Increased chemical resistance (urine, sugars, lactic acid, dilute chemicals)

ABOUT DAMP & RISING DAMP

CLASSIFLEX™ does:

• Improve surface waterproofing

• Reduce damp staining

• Reduce moisture penetration

• Improve drying times

• Protect paint adhesion

CLASSIFLEX™ does NOT:

• Stop rising damp

• Replace a damp-proof course (DPC)

Rising damp requires:

• A physical damp-proof course, or

• A chemical injection system

CLASSIFLEX™ is a damp-resistant modifier — not a rising damp cure.

DURABILITY BENEFITS

• Excellent water resistance

• Weather resistant

• UV stable

• Alkali resistant

• Increased abrasion and impact resistance

• Strong long-term performance in all climates

APPLICATIONS

• Reservoirs

• Ponds

• Tanks

• Shower floors & walls

• Screeded roofs & balconies

• Concrete masonry

• Veranda floors (before tiling)

• Retaining walls

• Tile adhesives & grouts

• Bagging & render coats

TECHNICAL DATA

• Solids: 45–46%

• Density: 1.04 (emulsion) / 1.07 (dry polymer)

• Viscosity: 200–800 cPs / 800–1500 cPs

• Specific Gravity: 1.49–1.51

• pH: 7–8

• Flash Point: Not applicable

• Colour: Milky white

• Packaging: 5L, 20L, 225kg drums, (1060kg mini-bulks, 5.5mt bulk - Bulk Prices available on Quotation depending on delivery)

STANDARD APPLICATION PROCEDURE

• Ensure surfaces are clean, sound and free of contaminants

• Smooth rough concrete using CLASSIFLEX™-modified mortar

• Dampen dry concrete (no standing water)

• Add CLASSIFLEX™ and reduce water accordingly

• Apply plaster, mortar, screed or grout normally

• Concrete may be poured as usual

IMPORTANT

• Use/store between 5°C–35°C, humidity 10%–85%

• Avoid adverse weather

• Clean tools immediately

• Lab data may vary on-site

• Always keep out of reach of children and animals.

• Do not take in orally - harmful if swallowed. Seek medical attention and do not induce vomiting.

• If accidental contact with skin, wash immediately with soap and water or a good quality skin cleaner.

• If accidental contact with eyes, rinse immediately with plenty of water and seek medical advice.

• Do not let a freshly painted room be occupied, particularly not by older people, children, or pets.

• Wear a respirator if the area being painted cannot be adequately ventilated, and work for short periods only.

• Ventilate the area to be painted, opening all doors and windows and using fans during application and drying.

• Protect floors with cloth drop cloths, not plastic, which is far more slippery.

• Do not paint or store paint near any heat source such as a water heater or fireplace and never smoke while painting.

• Make sure your ladder is in good shape. Set the legs on an even surface and lock the cross braces. Do not stand on the top of the ladder or on the utility shelf. If you are having difficulty reaching a spot, get down from the ladder and move it rather than leaning out.

• Clean up carefully and thoroughly when you are done for the day.

• If rags have alkyd paint or thinner on them, leave them to dry outside to avoid any chance of spontaneous combustion.

• Choose an area inaccessible to children and pets, and when they are thoroughly dry, take them to a toxic-waste dump site.

Different surfaces and environmental conditions require specific painting systems to produce the best possible results - It is, therefore, recommended that you contact a representative from Classic Paints for advice on all your painting requirements, whenever possible.

The information, and the recommendations relating to the application and end-use of Classic Paints products, are given in good faith based on Classic Paints’ current knowledge and experience of the products when properly stored, handled, and applied under normal conditions. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the Product Data Sheet for the product concerned copies of which will be supplied on request.

No guarantee is implied by the recommendations contained herein since conditions of use, method of application and cleanliness of the substrate prior to painting are beyond our control.

01/11/2025 - This supersedes all previous publications - This technical data furnished is obtained from controlled laboratory tests under ideal application conditions. No guarantee of any performance characteristic is given or implied and we do not hold ourselves responsible for any consequential damage of whatsoever nature that may arise from use of our products. In the event of a proven product fault our liability will be limited to the replacement of the product only. It is the user’s responsibility to confirm the currency of product data sheets.

Nothing contained in any CLASSIC PAINTS (PTY) LTD literature or materials relieves the user of the obligation to read and follow the warnings and instructions for each CLASSIC PAINTS (PTY) LTD product as set forth in the current product label, Product Data Sheet and Safety Data Sheet prior to use of the CLASSIC PAINTS (PTY) LTD product. It is the user’s responsibility to confirm the currency of product data sheets.