Sikagard®-7600 HG

• 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

12 months from date of manufacture in original, factory-sealed containers.

Store indoors at a temperature between 60–95 °F (15–35 °C)

comp. B: 8 lbs/gal
comp. A: 10.1 lbs/gal
Mixed & Cured: 8.3 lbs/gal

See Product Safety Data Sheet

-60–220 °F

Resistance to aqueous chemicals and waste water.

Please see chemical resistance chart.

Weathering (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

30 minutes  (at 70^oF, 50% R.H)

(Do not work directly from pail, pot life will be significantly reduced)

48 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

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

Detailing:

For moving and non-moving cracks less than 1/16” width: Apply a 30 mil detail coat of Sikagard®-7600 HG, extending 2” on either side and centered over the crack.

For cracks 1/16” width or greater and less than 1” width: Must be routed to at least ¼” by ¼”, and sealed with an appropriate Sikaflex® sealant, installed per sealant Product Data Sheet, and coated with a 30 mil detail coat of Sikagard®-7600 HG, extending 2” on either side and centered over the crack. Non-moving cracks can be filled with compatabile rigid repair materials.

NOTE: Cracks may indicate a structural issue and should be addressed by a structural engineer or appropriate design professional.

For joints 1/16” or greater and less than 1.5” width: Joints should be sealed with the appropriate Sikaflex® sealant, installed per sealant Product Data Sheet, and coated with a 30 mil detail coat of Sikagard®-7600 HG, extending 2” on either side and centered over the crack.

For expansion joints 1.5” or greater width: Should be treated as expansion joints and brought up through the Sikagard®-7600 HG membrane and/or Emseal Expansion Joint System, Sikadur Combiflex SG or other appropriate joint sealing system should be used. Contact Sika Technical Services for recommendations prior to application.

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, use a 3” wide strip of Sika Flexitape Heavy as the reinforcing.  Please see the Sika Flexitape Heavy product data sheet for installation instructions.

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 coating 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 surfaces. Apply using a 3/8” nap roller or notched squeegee and back-rolled. 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.