Description
Characteristics & Advantages
• Low VOC
• Environmentally Friendly
• Pre-batched and ready for use
• Mixes and applies easily
• Good adhesion to sound substrates
• Increases frost and salt resistance
• Impermeable
• Resist carbon dioxide penetration
• Non-toxic
• Slightly flexible
Application Area
• Potable water tanks
• Terraces and balconies
• RC gutters
• Bathroom floors and walls
• Basements
• Retaining walls
• Seawalls
Pot Life / Shelf life
Shelif life:
6 months when unopened.
Pot life:
30 minutes at 30°C and will be shortened at higher temperatures.
Storage
Store in a dry and cool place.
Uses
Obaproof AP Top Coat 117 can be used for positive and negative side waterproofing, sealing of hair line cracks and as a protective coating against aggressive chemicals such as carbon dioxide (e.g. in concrete repair work), frost and de-icing agents.
Surface Preparation
• Surfaces must be clean, free from grease, oil and loosely adhering particles. All surfaces must be as flat and level as possible.
• Absorbent surfaces have to be thoroughly saturated with water prior to application for first coat of Obaproof AB Top Coat 117. However, no loose standing water should be on the surface before application.
Application
Add Part B (Green Cement) gradually to Part A (Liquid) and mix thoroughly until it blends completely with the cement compound using a slow speed mixer. Use mixture within 30 minutes. Apply or plaster first and finish coat of Obaproof AB Top Coat 117 to construction surface by using brush, roller or spray method. The time interval between coats shall be 4-8 hours, and make sure that the first layer of plastering has been dried and formed as membrane.
Curing Time
For optimum performance, Obaproof AB Top Coat 117 should be allowed to cure for 24 hours before the finishing concrete, tiles, etc. During this time, precautions must be taken in order to prevent damaging the coating.
Coverage
• Bathrooms, terraces and balconies: 1.0kg/m² per coat
• For waterproofing coating up to 1m water head: 1.5kg/m² per coat
• For waterproofing coating more than 1m water head: 2.0kg/m² per coat”
Overcoating
After the primer, Obaproof AB Top Coat 117 can be applied directly to the areas exposed to hot drying winds. For indoor areas, it is recommended to allow approximately 30 minutes of wait time after the primer. For overcoating with cementitious materials, allow the second coat to harden for at least 2 days before overcoating. (For more details, please refer to the Technical Department.)
Mixing
Under normal circumstances, when the full quantities of both components are mixed together, a consistent mortar will result. 1 set of Obaproof AB Top Coat 117 can be added <1kg of water for smooth application.
Note
• Minimum ambient and substrate temperature is 5°C.
• Never apply more than 5 kg/m² of Obaproof AB Top Coat 117 in one single layer.
• Apply only to clean, sound substrates – surfaces should be well dampened but free of surface water and leaks.
• Obaproof AB Top Coat 117 must be applied in minimum 2 coats.
• More coats may be required in areas of extremely high infiltration.
Cleaning of Tools
Tools and equipment can be cleaned with clean water immediately after use. Hardened material can only be mechanically removed.
Technical Data
• Tensile strength (ASTM D412(Die C): 8.3kgf/cm²
• Elongation (ASTM D412(Die C): 24.30%
• Tear strength (ASTM D624): 7.20kgf/cm
• Hardness (Shore A) (ASTM D2240): 54
• 100% Modulus of Elasticity (ASTM D412(Die C): 5.80kgf/cm²
• Shear Strength (ASTM D1002): 4.70kgf/cm²
• Water Vapor Transmission of Material
i. WVT (g/hxm²)(23°C, 50%)- ASTM E96 : 37
ii. Permearce (g/sxm² × Pa)- Method B : 1.98 × 10¯⁵
• Abrasive Test – Taber CS-17, 1000g, 1000 Cycles (ASTM C501): 0.043g
• Puncture: 9kgf
• Compressive strength at 28days (n/mm²) (ASTM E154) : > 40
Safety
As cement is alkaline and may cause irritation, applicators are recommended to wear gloves and goggles when using Obaproof AB Top Coat 117. In case contact with eyes, flush immediately with clean water and seek medical assistance if symptoms persist.