Sarnafil® G 410-72 SA
72 mil thick PVC thermoplastic membrane with adhesive backing
Sarnafil® G 410-72 SA Roof Membrane is a PVC thermoplastic membrane with a factory applied pressure‐sensitive adhesive backing and siliconized polyethylene release liner. It is produced with an integral fiberglass mat reinforcement for excellent dimensional stability, is highly reflective, with heat‐weldable seams, and a unique lacquer coating applied to the top of the membrane to reduce dirt pick up.
- VOC free and odor free
- Factory applied adhesive to reduce on‐site installation labor and ensure uniform adhesive application
- Low temperature application limit of 20°F (‐7°C)
- Excellent dimensional stability
- Factory applied lacquer coating to reduce dirt pick up
- Proven membrane performance
- Heat welded seams
- Superior fire resistance
Usage
Used in adhered systems for new roofs and reroofs. AREAS OF APPLICATIONSika Approved Insulations and Cover Boards
- Polyisocyanurate Insulations
- High Density Polyisocyanurate Roof Boards
- Gypsum Boards with Primed Facer
- Plywood
Advantages
- VOC free and odor free
- Factory applied adhesive to reduce on‐site installation labor and ensure uniform adhesive application
- Low temperature application limit of 20°F (‐7°C)
- Excellent dimensional stability
- Factory applied lacquer coating to reduce dirt pick up
- Proven membrane performance
- Heat welded seams
- Superior fire resistance
Packaging
72 mil (1.8 mm) Membrane
6.56 ft x 65.6 ft (2 m x 20 m) roll, 220 lbs (100 kg) per roll
15 rolls per pallet
Colour
-
Top: Copper Brown, Evergreen*, or Lead Gray
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Bottom: Gray
-
Pressure Sensitive Adhesive: Clear
*Evergreen is not a stocked color. For lead time and minimum roll order requirements, contact Sika Roofing Customer Service.
Product Details
APPROVALS / CERTIFICATES
- FM Global
- Underwriters Laboratories
- Underwriters Laboratories of Canada
- ICC Code Compliance – ESR 1157
- NSF/ANSI 347: Platinum Certified
Composition / Manufacturing
High-quality PVC membrane containing ultraviolet light stabilizers, flame retardant, fiberglass reinforcement, with a unique lacquer coating on the top surface and pressure-sensitive adhesive with a removable siliconized polyethylene release liner on the back surface.
Reinforcing Material
Fiberglass
Shelf Life
Sarnafil G 410 SA has a shelf life of up to 12 months. An extension may be offered, when properly stored between 60°F (16°C) and 80°F (27°C), and out of direct sunlight upon technical review.
Storage Conditions
Store rolls on pallets and fully protected from the weather with clean canvas tarpaulins. Unvented polyethylene tarpaulins are not accepted due to the accumulation of moisture beneath the tarpaulin in certain weather conditions that may affect the ease of membrane weldability.
Overall Thickness
| 72 mil (1.8 mm), minimum thickness 45 mil | (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
Thickness Above Scrim
| 35 mil 16 mil | (ASTM D-7635) (ASTM Type II D-4434 Spec. Requirement) |
Resistance to Static Puncture
| Pass 33 lbf (15 kg) | (ASTM D-5602) (ASTM Type II D-4434 Spec. Requirement) |
Resistance to Dynamic Puncture
| Pass 7.3 ft-lbf (10 J) | (ASTM D-5635) (ASTM Type II D-4434 Spec. Requirement) |
Tensile Strength
| 100 lbf/in (445 N) 55 lbf/in (245 N) | (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
Tear Strength
| 20.5 lbf (91 N) 10 lbf (45 N) | (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
Seam Strength
| Pass 75% of original1 | (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
1 Failure occurs through membrane rupture not seam failure.
Linear Dimensional Change
| -0.02% 0.1% | (ASTM D-1204) (ASTM Type II D-4434 Spec. Requirement) |
Low Temperature Flexibility
| Pass Pass ‐40°F (‐40°C) | (ASTM D-2136) (ASTM Type II D-4434 Spec. Requirement) |
Weight Change after Immersion in Water
| 1.8% + 3.0% | (ASTM D-570) (ASTM Type II D-4434 Spec Requirement) |
Resistance to UV Exposure
| Pass 5,000 hours | (ASTM G-154) (ASTM Type II D-4434 Spec. Requirement) |
| Cracking (7x magnification) | None |
| Crazing (7x magnification) | None |
Retention of Properties after Heat Ageing
| Breaking Strength, % of original: Pass Elongation, % of original: Pass Breaking Strength, % of original: 90 Elongation, % of original: 90 | (ASTM D-751) (ASTM D-751) (ASTM Type II D-4434 Spec. Requirement) |
Application
APPLICATION
Sarnafil® G 410-72 SA is installed after proper preparation of the approved substrate. The membrane is unrolled and positioned in place with the selvage edge lapping the adjacent roll to allow for the 3" (76 mm) side lap. Fold back half of the sheet onto itself in the long direction and carefully cut the release liner with the cutting tool provided by Sika without damaging the membrane. Peel back 3 - 5" (76 - 127 mm) of the release liner and press firmly onto the substrate. Weight may be necessary on the membrane when first starting. Continue removing the release liner from the membrane in a smooth, wrinkle‐free manner while maintaining the 3" (76 mm) side lap. Immediately roll the membrane with a minimum 75 lb (34 kg) steel roller. Remove the remaining release liner from the other half of the membrane using the above
process and immediately roll the membrane with the steel roller. Sarnafil® G 410-72 SA side lap seams are heat‐welded together by trained operators using hot‐air welding equipment. End laps and all cut edges are butted together and an 8" (203 mm) Sarnafil G 410 coverstrip is hot‐air welded over the butt and cut edge joints.
