USES
SikaProof® A+ 12 is recommended for use by professionals and is applied for:
- Damp-proofing, waterproofing, and protecting basements and other below-ground concrete structures.
- Suitable for:
- Precast reinforced concrete structures
- Cast-in-place reinforced concrete structures
- Existing reinforced concrete structures
FEATURES
- Dual bond: Offers a permanent mechanical and chemical bond with the concrete.
- Pre and post-application: Can be used in both applications.
- Sealing options: Joints can be sealed using either thermal jointing or cold-applied tapes.
- No lateral water movement between concrete and the membrane.
- Radon barrier: Effective in preventing radon diffusion.
- Easy and quick installation.
- High flexibility and excellent crack-bridging properties.
- Watertightness: Tested and proven to meet rigorous standards.
- Resistance to harsh conditions like natural groundwater and soil.
- Temporary resistance to weathering and UV exposure.
- Compatible with other Sika® waterproofing and joint sealing products.
SUSTAINABILITY
- Environmental Product Declaration (EPD) verified by BRE Global according to EN 15804.
- Contributes to satisfying LEED® v4 credits for Materials and Resources, including building product disclosure and optimization.
CERTIFICATES AND TEST REPORTS
- CE marking and declaration of performance according to EN 13967:2012 for waterproofing flexible sheets.
- Multiple watertightness tests and radon diffusion coefficient report.
PRODUCT INFORMATION
- Composition: Flexible Polyolefin (FPO) membrane layer with a cement-modified polymer hybrid layer.
- Packaging: Rolls available in 1.00 m or 2.00 m widths, with a length of 25 m per roll.
- Colour: Light yellow top layer and grey bottom layer.
- Shelf Life: 24 months from production.
- Storage: Store in original, sealed packaging in dry conditions between +5 °C and +30 °C. Keep rolls in a horizontal position and avoid stacking pallets.
TECHNICAL INFORMATION
- Impact Resistance: ≥ 400 mm on hard or soft support.
- Tensile Strength: ≥ 750 N/50mm in both longitudinal and transversal directions.
- Reaction to Fire: Class E (EN 13501-1).
- Watertightness: Passes tests at 60 kPa for 24 hours.
- Durability: Passes tests for watertightness after aging in high temperatures and chemicals.
- Elongation: ≥ 1100% in both longitudinal and transversal directions.
- Service Temperature Range: -10 °C to +35 °C.
APPLICATION INFORMATION
- Ambient Temperature: Maximum +45 °C, Minimum +5 °C.
- Substrate Temperature: Maximum +60 °C, Minimum +5 °C.
SYSTEM INFORMATION
For the pre-applied system, the following products are used:
- SikaProof® A+ 12 sheet membrane
- SikaProof® Tape A+ N for detailing and internal jointing
- SikaProof® Sandwich Tape
For the post-applied system, the following products are used:
- SikaProof® A+ 12 sheet membrane
- SikaProof® Adhesive-03 AE
- SikaProof® ExTape-100
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