Waterproofing Coating - Sikagard®-7600 VG
TWO-COMPONENT POLYURETHANE, TROWEL GRADE, BITMUEN MODIFIED WATERPROOFING MEMBRANE
Sikagard® 7600 is a two-component, liquid applied, asphalt extended polyurethane sealer used in a waterproofing membrane system. The system is available in 2 grades . Sikagard® 7600 VG - trowel grade can be used for vertical and overhead applications .
- Economical and easy to apply system
- Seamless system which bridges cracks and joints
- Impervious to water and aqueous chemicals
- Abrasion Resistant
- UV Stable
Usage
- Waterproofing
- Tank Liner
- Pond Liner
- Cooling Tower liner
- Potable Water Containment
- Reservoirs
- Planters
- Plaza/Pool Decks with Vegetation
- Traffic system base coat over asphalt surface
Advantages
- Economical and easy to apply system
- Seamless system which bridges cracks and joints
- Impervious to water and aqueous chemicals
- Abrasion Resistant
- UV Stable
Packaging
Component A - 0.45 gal. pail
Component B - 4.05 gal. pail
1 Unit 4 x 4.5 gal. pail A+B
Color
Component A: Transparent
Component B: Black
Product Details
Sustainability / Certifications / Approvals
APPROVALS / STANDARDS- Meets California VOC and AQMD Requirements, Including SCAQMD Areas
- ANSI / NSF 61 Approved for contact with Potable Water
- Complies with LADBS AC-L021: Acceptance Criteria for Below-Grade Exterior Damp-Proofing and Waterproofing Materials requirements for materials that are unexposed, unreinforced sheet membrane barrier.
- City of Los Angeles Research Report: 26199
Product Information
Shelf Life12 months from date of manufacture in original, factory-sealed containers
Storage ConditionsStore indoors at a temperature between 60-95 °F (15-35 °C)
Densitycomp. B: 8 lbs/gal
comp. A: 10.1 lbs/gal
Mixed & Cured: 8.3 lbs/gal
Volatile organic compound (VOC) contentSee Product Safety Data Sheet
Technical Information
Service Temperature-60-220 °F
Chemical ResistanceResistance to aqueous chemicals and waste water.
Behavior after Artificial WeatheringWeathering (ASTM D822) done for > 5000 hrs
Tensile Strength (ASTM D-412) ................................... 1000 psi ± 50 psi 5.86 Mpa ± 0.3 Mpa
Tear Strenght (Die C, ASTM D-624) .............................180 ± 50 pli
Hardness (ASTM D-2240) ............................................ 60 ± 5 Shore A
Adhesion to Concrete (dry) Elcometer ........................ 350 psi
Abrasion Resistance - Weight Loss (ASTM D4060) ..... 1.2 mg loss
Deflection Temperature (ASTM D648) ........................pass
Elastomeric Waterproofing (ASTM C836) ....................exceeds
(ASTM C957) .................. exceeds
Extension to Break (ASTM D2859) ............................. 450 ± 100
Liner Performance Crack Bridging ............................... 10 cycles @ - 15°F > 1/8”; After heat aging > 1/4”
Liner Weight ( 60 mil wet film thickness) .....................30 lbs/100 sq.f.
Mullen Burst Strenght (ASTM D751)........................... 50 mil 155 psi
Recovery from 100% Extention after 5 minutes .......... 98%
after 24 hours ............100%
Softening Point, Ring & Ball (ASTM D36) ................... >400°F
Deflection Temperature (ASTM D648) ........................ -60°F
Application
Application Information
Pot Life20 minutes (standard ambient conditions 70 Fo , 50% humidity)
Consumption
Coverage48 ft²/gal results in 30 ± mils DFT (standard per 1 coat)
24 ft²/gal results in 60 ± mils DFT
16 ft²/gal results in 90 ± mils DFT
12 ft²/gal results in 120 ± mils DFT
Application Steps
APPLICATIONMixing
It is essential that proper mixing methods and tools are used to ensure proper application of Sikagard®-7600 VG.
- Mixing Drill: Mechanical Mixer ( 400-600 rpm)
- Mixing Paddles: Jiffy Style Paddle ( 5-50 Gallon Model) or Mud Mixing Paddle ( 9-5/8" WIDE x 6-1/4" DEEP)
- Premixing: Premix each pail of Sikagard®-7600 VG Part-B (4.05 gal.) by using a mechanical mixer with a jiffy style paddle or a mud mixing paddle at slow speed for a minimum of 1.5 minutes to ensure Sikagard®-7600 VG Part B is a homogeneous mixture in pail.
- Mixing A & B component: After premixing continue to mix Sikagard®-7600 VG Part B, slowly add one 0.45 gallon pail of Sikagard®-7600 VG Part-A to the vortex created while mixing Sikagard®-7600 VG Part B. Once Part-A has been added, mix continuously for 3 minutes.
- Take care not to allow entrapment of air into the material. Ensure mixed evenly including sides of pail. Do not mix in an aggressive up and down motion. Do not estimate mixing time to avoid any errors. Do not thin. Do not hand mix. Mix the whole pail. Do not batch down.
Top: Jiffy Style Paddle Bottom: Mud Mixing Paddle
Priming:
When primer is required use the following coverages for concrete; Sikalastic® FTP LoVOC primer at 200 sq. ft/gal or Sikadur® 22 Lo-Mod FS at 160 sq. ft/gal. Apply using a brush or phenolic core roller. This will result in 8-10 dry mils of primer. Don’t prime over an existing crack and joint detail coats. For primer application over asphalt contact Sika Technical Services for recommendation. Due to age and porosity of asphalt coverage rates can change drastically.
NOTE: For rough or porous concrete or when outgassing is a concern, use Sikadur® 22 Lo-Mod FS, Sikalastic FTP LoVOC or Sikalastic® PF LoVOC Primer at an approximate rate of 160 - 210 sq.ft/gal. This rate may vary on the porosity of the substrate. The surface must be totally covered with primer with no dry spots or spots where the primer has completely absorbed into the substrate. Allow primer to become tack free before proceeding to the next phase.
Detailing:
Non-structural cracks less than 1/16"- Apply a detail coat of Sikagard®-7600 VG at 30 WFT, 3" wide, centered over the crack. Allow detail coat to become tack-free before overcoating.
Crack and joints greater than 1/16" up to 1" - Rout (min 1/4" W x 1/4" D) and Seal crack with Sikaflex sealant and allow to cure sufficently before overcoating. Then apply a detail coat of Sikagard®-7600 VG at 30 WFT, 3 " wide, centered over the crack or joint. Allow detail coat to become tack-free before overcoating.
Joints greater than 1" - Should be treated as an expansion and be honored up through the Sikagard®-7600 VG membrane.
Fabric reinforcement - Sika does not require reinforcing of the detail coat when going over cracks and joints. In situations where reinforcing detail coats is required, then the width of the detail coat must be increased to 4” and use a 3” wide strip of Sika Flexitape Heavy as the reinforcing.
Application:
Sikagard®-7600 VG can be applied at different thicknesses to accommodate different application and warranty requirements. For best results Sikagard®-7600 VG should be applied in two coats. Please follow the coverage rate section above to determine proper coverage for 30, 60, 90 mil coating layers. Allow to cure (4-6 hours or until membrane) after initial coat and before proceeding. Sikagard®-7600 VG should be applied in the shade or during evening hours. When applying in direct sunlight it is possible that the surface of the coating can cure too quickly and entrap solvent resulting in blisters.
Sikagard®-7600 VG can be applied over both horizontal and vertical surface. Apply using a 3/8” nap roller or notched squeegee and back-roll . Please note that pot life for Sikagard®-7600 VG is only 20 minutes. Sikagard®-7600 VG can be applied on horizontal surfaces up to 120 mils and on vertical surfaces up to 90 mils.
Sikagard®-7600 VG can be applied to an overhead surface. Apply using a trowel and backroll.
Recoat: After application at 75 °F (24 °C) and 50 % R.H, second or multiple coats must be completed within 16 hours from the start of the previous applications of Sikagard®-7600 VG. If a rain event occurs during the 16 hour window or the 16 hour window is missed and does not go beyond 72 hours or get covered with significant dirt or other contamination, it is necessary to solvent wipe with xylene, acetone or other approved solvent, and prime with Sikalastic Recoat Primer. Once beyond 72 hours from the start of the previous applications of Sikagard®-7600 VG, it is necessary to clean, abrade, solvent wipe with xylene, acetone or other approved solvent, and prime with Sikalastic Recoat Primer.
Details
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