Waterproofing Coating - Sikagard®-7600 HG
TWO COMPONENT POLYURETHANE, HORIZONTAL GRADE, BITUMEN MODIFIED WATERPROOFING MEMBRANE
Sikagard®-7600 HG is a two-component, horizontal grade, liquid applied, asphalt extended polyurethane waterproofing membrane/coating system.
- Flexible system that bridges cracks and joints
- Handles full water immersion conditions
- 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
- Hybrid Traffic system base coat over asphaltic surfaces
Advantages
- Flexible system that bridges cracks and joints
- Handles full water immersion conditions
- Impervious to water and aqueous chemicals
- Abrasion Resistant
- UV Stable
Packaging
18 gal. kit - 4 x 4.5 gal. pail A+B
3 gal. kit- 3 x 1 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 Strength (Die C, ASTM D-624) .............................180 ± 50 psi
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.ft
Mullen Burst Strength (ASTM D751)........................... 50 mil 155 psi
Recovery from 100% Extension 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 Life30 minutes (at 70oF, 50% R.H)
(Do not work directly from pail, pot life will be significantly reduced)
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 HG.
- Mixing Drill: Low Speed Mixing Drill ( 400-600 rpm)
- Mixing Paddle: Jiffy Mixer ( 5-50 Gallon Model) or Mud Mixing Paddle ( 9-5/8" WIDE x 6-1/4" DEEP)
- Premixing: Premix each pail of Sikagard®-7600 HG Part-B (4.05 gal.) using the recommended drill and mixing paddle at slow speed for a minimum of 1.5 minutes to ensure Sikagard®-7600 HG Part B is a homogeneous mixture.
- Mixing A & B component: With mixing paddle in the Part-B, turn on mixing drill and begin mixing Sikagard®-7600 HG Part B, and while the mixing paddle is spinning slowly add one 0.45 gallon can of Sikagard®-7600 HG Part-A to the center of the vortex created by the mixing paddle. Once Part-A has been added, mix continuously for an additional 3 minutes using a very slow up and down motion, making sure full pail is mixed evenly, including the sides of the pail.
- NOTE: Take care not to allow entrapment of air into the material. Do not mix in an aggressive up and down motion. Do not estimate mixing time. Do not thin. Do not hand mix. Mix the whole pail. Do not batch down. If a greenish hue can be seen at the top of the pail then product has not been mixed properly.
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 HG 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 HG 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 HG 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 HG can be applied at different thicknesses to accommodate different application and warranty requirements. For best results Sikagard®-7600 HG 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 surface is walkable without damaging the membrane) after initial coat and before proceeding.Sikagard® 7600 HG 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 HG 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 HG is only 30 minutes. Sikagard®-7600 HG can be applied on horizontal surfaces up to 120 mils and on vertical surfaces up to 45 mils.
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 HG. 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 HG, 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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