Sikaflex® EBT+

• VOC emission classification GEV-Emicode EC1^PLUS.
• Conformity with LEED v4 EQc 2: Low-Emitting Materials.

• CE and UKCA Marked to types F EXT-INT CC and PW EXT-INT CC.

Sika® Purform® polyurethane with a monomeric diisocyanate content of less than 0.1 % by weight. Therefore, users do not require training on the safe use of diisocyanates according to Commission Regulation (EU) 2020/1149.

15 months from date of production if stored in undamaged original unopened containers.

Store in dry conditions and protected from direct sunlight at temperatures between +5 °C and +25 °C.

~ 1.35 kg/L (ISO 1138-1)

~33 after 28 days (ISO868)

~ 1.8 N/mm²

~ 0.6 N/mm² (100 % elongation at +23 °C ISO8339)

~85 % (100 % elongation at +23°C ISO 7389)

± 25 % (ISO 9047)

Resistant to water, seawater, diluted alkalis, cement grout and water dispersed detergents.
Not resistant to alcohols, organic acids, concentrated alkalis and concentrated acids, chlorinated, aromatic (hydro-carbons) fuel.

The joint dimensions must be designed to suit the movement capability of the sealant. The joint width must be ≥ 10 mm and ≤ 35 mm. A width to depth ratio of 1:0.5 for facade joints and a width to depth ratio of 1:0.8 for floor joints must be maintained (for exceptions, see table below).
Typical joint dimensions for joints between concrete elements:

Minimum joint width for perimeter joints around windows is 10 mm.

All joints must be correctly designed and dimensioned in accordance with the relevant standards and codes of practice before their construction. The basis for calculation of the necessary joint widths are the type of structure, dimensions, technical values of the adjacent building materials, joint sealing material and the specific exposure of the building and the joints. Joints ≤ 10 mm in width are for crack control and therefore non-movement joints.

For larger joints contact Sika Technical Services for additional information.

+5 °C min. / +40 °C max.

+5°C min. / +40°C max.

Dry

~ 4 mm / 24 h (+23 °C / 50 % r.h.)

~ 50 minutes (+23 °C / 50 % r.h.)

Approximate Consumption (based on 300 ml cartridge)

Minimum gap width for perimeter joints around windows: 10 mm.
Bonding:

• In dabs: 1 cartridge for 100 x 3 cm dabs of Sikaflex® EBT+ (Diameter =3 cm; thickness = 0.4 cm)
• In strips: 1 cartridge for 12 metres of Sikaflex® EBT+ with 5 x 5 mm cross section.On average 0.2 - 0.6 kg/m² depending on bonding area.

• For good workability, the adhesive temperature should be +20 °C.
• Application during high temperature changes is not recommended (movement during curing).

The substrate must be sound, clean, dry and free of all contaminants such as dirt, oil, grease, cement laitance, old sealants and poorly bonded paint coatings which could affect adhesion of the adhesive / sealant. The substrate must be of sufficient strength to resist the stresses induced by the sealant during movement. Removal techniques such as wire brushing, grinding, sanding or other suitable mechanical tools can be used.
All dust, loose and friable material must be completely removed from all surfaces before application of any activators, primers or adhesive / sealant.
Sikaflex® EBT+ adheres without primers and/or activators.
To ensure adhesion to many substrates, joint durability, and critical high performance applications the following priming and/or pre-treatment procedures must be followed:
Non-porous substrates
Aluminium, anodised aluminium, stainless steel, PVC, galvanised steel, powder coated metals or glazed tiles: slightly roughen surface with a fine abrasive pad. Clean and pre-treat using Sika® Aktivator-205 applied with a clean cloth. Before bonding / sealing, allow a waiting time of > 15 minutes (< 6 hours).
Other metals, such as copper, brass and titanium-zinc: clean and pre-treat using Sika® Aktivator-205 applied with a clean cloth. After a wait-
ing time of > 15 minutes (< 6 hours) apply Sika® Primer-3 N by brush. Allow a further waiting time of > 30 minutes (< 8 hours) before bonding / sealing. 

PVC must be cleaned and pre-treated using Sika® Primer-215 applied with a brush. Before bonding / sealing, allow a waiting time of > 15 minutes (< 8 hours).
Porous substrates
Concrete, aerated concrete and cement-based renders, mortars and bricks: prime surface using Sika® Primer-3 N or Sika® Primer-115 applied by brush. Before bonding / sealing, allow a waiting time of > 30 minutes (< 8 hours).

Note: Primers and activators are adhesion promoters and not an alternative to improve poor preparation / cleaning of the joint surface. Primers also improve the long-term adhesion performance of the sealed joint.
Contact Sika Technical Services for additional information.

Clean all tools and application equipment with Sika^® Remover-208 / Thinner C immediately after use. Hardened / cured material can only be removed mechanically.