Cement-Acrylic Based, Two Component, Flexible Waterproofing Material for Negative-Positive Application - CHIMEX 235

Cement-Acrylic Based, Two Component, Flexible Waterproofing Material for Negative-Positive Application - CHIMEX 235


Cement and acrylic based, super elastic, two component, resistant to positive and negative water pressure waterproofing material with high crack bridging property.

Fields of Application

Features and Benefits

Technical Data




Mixture Density

Adhesion Strength

Resistance to Pressurized Water

Capillary Water Absorption

Maturity Period

Application Temperature

Service Temperature

Application Tools

Drying Time 

Mechanical Strength

Water Impermeability

Final Strength

HS Code

 : Component A: Polymer modified additives and special cement

   Component B: Copolymer acrylic dispersion

 : Grey, White

 : 25 kg A component : 10 kg B component

 : 1,44 g/cm3

 : ≥1,00 N/mm(28 days)

 : 1 bar negative / 1,50 bars positive

 : ≤0,10 g (after 4 hours) (TS EN 12808-5)

 : 3-5 minutes

 : +5°C to +30°C

 : -20°C to +80°C

 : Brush / Trowel

 : 2 days

 : 7 days

 : 14 days

 : 3824.

Application Procedure

Preparation of Substrate

Application substrate must be dry, sound, mainly smooth, clean and fine pored. The application surface must be clear of materials which prevent bonding, such as oil, dust, paint, silicone, curing agents, detergents and paraffin wax. Weak parts of the concrete must be repaired, plasters that are not well adhered must be removed, the surface must be flat and sound, static cracks on the building must be repaired with a plaster containing LATEX or REPAMERK 301. Holes that have water outflow must be filled with WATERSHOCK. The surface must be saturated with water and must be kept moist during the application. Perpendicular corners should be beveled.

Application Method

Pour liquid Part B into a clean mixing container and slowly add powder Part A while mixing with a 400-600 rpm mixer. Continue mixing for at least 3-5 minutes until a homogenous and uniform mixture is obtained. Wait for 3-5 minutes and mix again for approximately 30 seconds and becomes ready to use. Prepared CHIMEX 235 mixture is applied by brush or trowel as two or three layers. Brush application direction in each layer must be perpendicular to each other. Minimum 5 - 6 hours and maximum 24 hours, must be waited after first coat application at +20°C. Second layer must be applied before the first layer is not completely dry. In case the first layer is dry, the surface must be moisturized again before the application of the second layer. The surface must be protected from sunlight and prevented from drying quickly, for 3 days after the application of the second layer. It is recommended to use a mesh between the layers. Using mesh increases the reinforcing properties of the product.


1,25 - 1,5 kg/m2 is applied for each layer. Recommended at least 2 coats application. If needed high protection, 3 coats application can be applied.


35 kg set

Powder A component: 25 kg kraft bag / Liquid B component: 10 kg plastic drum

Shelf Life

12 months in original, unopened package.


Store in dry area between +5°C and +35°C. Protect from heat, freezing and direct sunlight.

Cleanup Information

Clean tools and equipment with water immediately after use. Dried material can only be removed mechanically.

Cautions / Limitations

Health and Safety

Warning! Cause eye and skin irritation. If eye or skin contact, get immediate medical attention. If swallowed, do not induce vomiting. Call a physician or poison control center. Never give anything by mouth to an unconscious person.

Wash hands thoroughly after handling. Wear protective clothing, gloves, eye and face protection. Do not eat, drink or smoke when using this product. Take off contaminated clothing and wash it before reuse. Dispose of unused, contents, container and other contaminated wastes in accordance with local, state, federal and provincial regulations.

Keep container closed when not in use. Keep out of the reach of children.

Limited Warranty: This product is subject to a written limited warranty which can be obtained free of charge from BAUMERK Company. Please contact with technical service department for further information and support.

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Dursunköy Mah. Uygur Cad. No:44 34555
Hadımköy - Arnavutköy - İstanbul / TÜRKİYE