Sikafloor®-263 SL

• Conforms to Australian Standards AS 4586-2013  for a variety of textures - (Refer Sika Technical Dept.).
• VOC- Australian Standards ASTM D3960 - Green Star Building Council - V2IEQ-13    V1IEQ-11
• Particle emission certificate Sikafloor®-263 SL CSM Statement of Qualification – ISO 14644-1, class 5– Report No. SI 0904-480 and GMP class A, Report No. SI 1008-533.
• Outgassing emission certificate Sikafloor®-263 SL CSM Statement of Qualification – ISO 14644-8, class 6,5 - Report No. SI 0904-480.
• Good biological Resistance in accordance with ISO 846, CSM Report No. 1008-533
• Fire classification in accordance with EN 13501-1, Report-No. 2007-B-0181/14, MPA Dresden, Germany, February 2007.
• Synthetic resin screed material according to EN 13813:2002, Declaration of Performance 02 08 01 02 05 00000002 1008, and provided with the CE marking.
• Coating for surface protection of concrete according to EN 1504-2:2004, Declaration of Performance 02 08 01 02 05 00000002 1008, certified by notified factory production control certification body 0921, certificate of conformity of the factory production control 2017, and provided with the CE marking.
• ISEGA Certificate of Conformity 41583 U16

Epoxy

12 months from date of production

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5°C and +30°C.

All Density values at +23 °C.

~100 %

~100 %

Short-term moist/wet heat* up to +80°C where exposure is only occasional (steam cleaning etc.).

*No simultaneous chemical and mechanical exposure and only in combination with Sikafloor® systems as a broadcast system with approx. 3 - 4 mm thickness.

Resistant to many chemicals. Contact Sika technical service for specific information.

Part A : Part B = 78 : 22 (by weight)

+10 °C min. / +30 °C max.

80 % r.h. max.

Beware of condensation!
The substrate and uncured floor must be at least 3 °C above dew point to reduce the risk of condensation or blooming on the floor finish.

Note: Low temperatures and high humidity conditions increase the probability of blooming.

+10 °C min. / +30 °C max.

< 4 % pbw moisture content.

Test method: Sika®-Tramex meter, CM-measurement or Oven-dry-method.

No rising moisture according to ASTM (Polyethylene-sheet).

Note: Use Sikafloor 161 Primer for substrates to 6 pbw.  For substrates with moisture content above 6% pbw use Epocem 81

Before overcoating Sikafloor®-263 SL allow:

Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

For accelerated curing times, Sikafloor Booster can be used.  Refer to Sika Techncal Dept. for direction.

~1.8 kg/m²/mm (1L/m2/mm) applied as a self-smoothing wearing course.

These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc. For detailed info, please refer to the System data sheet Sikafloor® Multidur ES- 23 / 24 and Sikafloor® Multidur EB-24

Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 3 minutes until a uniform mix has been achieved. When parts A and B have been mixed, add the quartz sand and if required the Extender T and mix for a further 2 minutes until a uniform mix has been achieved. To ensure thorough mixing pour materials into another container and mix again to achieve a consistent mix. Over mixing must be avoided to minimise air entrainment.

Mixing Tools

Sikafloor®-263 SL must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment. For the preparation of mortars use a forced action mixer of rotating pan, paddle or trough type. Free fall mixers should not be used.

Care should be given to use a mixing head/ mixing vessel combination that has the mixing head submerged beneath the surface of the full mix.

Failure to do this may entrain excess air into the mix that can create difficulties in expelling all air from the applied floor with the spiked roller.

Prior to application, confirm substrate moisture content, relative air humidity and dew point. If > 4 % pbw moisture content, Sikafloor® EpoCem® may be applied as a T.M.B. (temporary moisture barrier) system.
Primer:
Make sure that a continuous, pore free coat covers the substrate. If necessary, apply two priming coats. Apply Sikafloor® 161 /-160 by roller then squeegee to overcome any possibilty of entrapped air from the substrate creating pin/air holes in the finished product.
Preferred application is by using a squeegee and then backrolling crosswise.
Levelling:
Rough surfaces need to be levelled first. Therefore use e.g. Sikafloor® 161/-160 levelling mortar (see PDS).
Wearing course smooth:
Sikafloor®-263 SL is poured, spread evenly by means of a serrated tooth pattern trowel or pin rake.
Roll immediately in two directions with a spiked roller to ensure even thickness and expell all latent, entrapped air from the mixing process.
Broadcast system:
Sikafloor®-263 SL is poured, spread evenly by means of a serrated trowel.
Then, level and remove any entrapped air with a spiked roller and after about 15 minutes (at +20 °C) but before 30 minutes (at +20 °C), broadcast with quartz sand, at first lightly and then to excess.

When the floor has set hard (approx 10 hours @ 21 degrees C), remove all excess broadcast sand by sweeping and thorough vaccuming.

Note: Use Sikafloor Booster additive to accelerate this process; (refer to Sika Technical Dept for direction.)

Apply finish coats of Sikafloor 264 high build flowable epoxy. Usually 2 coats required.

Coverage rates: 2-3m2 per L first coat . 5-6 m2 per L second coat ( rates will vary depending on the size of the broadacst aggregate selected.

Clean all tools and application equipment with Thinner C immediately after use. Hardened and/or cured material can only be removed mechanically.