Sika® CarboDur® S

5 years from date of production

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures of max. +50 °C. Protect from direct sunlight.

Transport only in the original packaging, or otherwise adequately protected against any mechanical damage

1.60 g/cm³

> 68 %

The system build-up and configuration as described must be fully complied with and may not be changed.

*Average ultimate value minues 3 standard deviations

1.85 %

(calculated from the average tensile strength and the modulus of elasticity)

Note: consumption is based on a 3 mm (1/8 in) nominal thickness and does not take into consideration the plane, roughness of substrate as well as laminate crossings. Actual consumption of adhesive will then be higher.

Sika® Carbodur® plates externally bonded to concrete surfaces

Concrete must generally be older than 28 days.

Concrete pull-off strength after surface preparation:

• Minimum: 1.5 MPa (218 psi) with concrete substrate failure.

Sika® Carbodur® plates externally bonded to concrete surfaces

• Surface must be clean and sound. It may be dry or damp, but free of standing water.
• Remove dust, laitance, grease, curing compounds, impregnations, waxes, foreign particles, disintegrated materials, and other bond inhibiting materials from the surface.
• Blast clean, shotblast or use other approved mechanical means to provide an open roughened texture equivalent to CSP 3 minimum, as per ICRI 310.2R.
• Existing uneven surfaces must be filled with an appropriate repair mortar (i.e. Sikadur®-30 with the addition of 1 part sand).
• The adhesive strength of the concrete must be verified after surface preparation by random pull off testing (ACI 503R) at the discretion of the engineer.
• Planeness of substrate to be checked with a metal batten. Tolerance for 2 m (6.5 ft) length max. 10 mm (3/8 in), or 2.5mm (3/32 in) for 50 cm (20 in) length respectively.

Consult Sikadur®-30 Product Data Sheet for information.

Sika® Carbodur® externally bonded to other types of substrates

• Steel: Sandblast to white metal finish (SSPC SP5).
• Timber: Plane, sand or grind. Remove all dust from the surface with an industrial vacuum cleaner.
• Sika® CarboDur® S: Surface should be wiped clean using an appropriate cleaner. Using a clean white cloth, wipe down the side receiving the adhesive (this side is not labeled) with acetone until all residual carbon dust is removed (i.e. white cloth remains white after wiping the laminate). In case where the design requires “stacking” of the strips, the bottom surface of the strip (labeled) should be lightly sanded (emery paper type 180) and wiped clean, prior to the second strip application.

1. Apply the neat mixed Sikadur®-30 onto the concrete with a trowel or spatula to a nominal thickness of 1.5 mm (1/16 in)
2. Apply the mixed Sikadur®-30 onto the Sika® CarboDur® S with a ‘roof-shaped’ spatula to a nominal thickness of 1.5 mm (1/16 in)
3. Within the epoxy open time and depending on the temperature, place Sika® CarboDur® S onto the concrete surface
4. Using a hard rubber roller, press the plate into the epoxy resin until the adhesive is force out on both sides
5. Remove excess adhesive
6. Glue line should not exceed 3 mm (1/8 in)
7. The laminate must not be disturbed for a minimum of 24 hours. The epoxy will reach its design strength after 7 days