Product Data Sheet Show all documents

Sikafloor®-263 SL

2-part epoxy covering for smooth and broadcasted flooring surfaces

Sikafloor®-263 SL is a two part, multipurpose binder based on epoxy resin.
"Total solid epoxy composition acc. to the test method Deutsche Bauchemie e.V. (German Association for construction chemicals)"

  • Highly fillable
  • Good chemical and mechanical resistance
  • Easy application
  • Liquid proof
  • Gloss finish
  • Slip resistant surface possible
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Product Data Sheet Show all documents

Usage

Sikafloor®-263 SL is used as:
  • Self-smoothing and broadcast systems for concrete and cement screeds with normal up to medium heavy wear e.g. storage and assembly halls, maintenance workshops, garages, loading ramps etc.
  • The broadcast system is recommended for multi-storey and underground car parks, maintenance hangars and for wet process areas, e.g. beverage and food industry

Advantages

  • Highly fillable
  • Good chemical and mechanical resistance
  • Easy application
  • Liquid proof
  • Gloss finish
  • Slip resistant surface possible

Packaging

Part A

10.0ltr (15.8kg) containers

Part B

4.2ltr (4.2kg) containers

Part A+B

14.2ltr (20kg) ready to mix units

Part A+B+C
1:1(resin:filler SS2)21.28ltr or 40kg (20kg Part C)

Colour

Resin - part A:

coloured, liquid

Hardener - part B

transparent, liquid

 RAL 1002, 7032, 7035, 7037, 7038, 7042
Other colours on request.

Under direct sun light there may be some discolouration and colour variation; this has no influence on the function and performance of the coating.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • 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.
  • 2-part epoxy self-smoothing and broadcast system according to EN 1504-2: 2004 and EN 13813:2002, DoP 02 08 01 02 013 0 000006 2017, certified by Factory Production Control Body No. 0921, certificate 2017, and provided with the CE-mark
  • ISEGA Certificate of Conformity 41583 U16

 
Product Information

Composition

Epoxy

Shelf life

24 months from date of production

Storage conditions

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

Density

Part A~ 1.50 kg/l

Part B

~ 1.00 kg/l

Mixed resin

~ 1.44 kg/l
Filled resin ( 1:1)~ 1.84 kg/l

All Density values at +23 °C.

Solid content by mass

~100 %

Solid content by volume

~100 %
Technical Information

Shore D Hardness

~76 (7 days / +23 °C)

(DIN 53 505)

Abrasion resistance

~41 mg (CS 10/1000/1000) (8 days / +23 °C)

(DIN 53 505)

Compressive strength

~50 N/mm2 (Resin filled 1:0.9 with F34 / 28 days / +23 °C)

(EN196-1)

Tensile strength in flexure

~20 N/mm2 (Resin filled 1:0.9 with F34 / 28 days / +23 °C)

(EN 196-1)

Tensile adhesion strength

> 1,5 N/mm² (failure in concrete)

(ISO 4624)

Chemical resistance

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

Temperature resistance

Exposure*

Dry heat

Permanent

+50 °C

Short-term max. 7 d

+80 °C

Short-term max. 12 h+100 °C

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.

 

Application

Application Information

Mixing ratio

Part A : part B = 79 : 21 (by weight)

Ambient air temperature

+10 °C min. / +30 °C max.

Relative air humidity

80 % r.h. max.

Dew point

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.

Substrate temperature

+10 °C min. / +30 °C max.

Substrate moisture content

< 4 % pbw moisture content.

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

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

Pot Life

Temperature

Time

+10 °C

~ 60 minutes

+20 °C

~ 30 minutes

+30 °C~ 15 minutes

Curing time

Before overcoating Sikafloor®-263 SL allow:

Substrate temperature

Minimum

Maximum

+10 °C

30 hours3 days

+20 °C

24 hours2 days
+30 °C16 hours1 days

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

Applied product ready for use

Temperature

Foot traffic

Light traffic

Full cure

+10°C~ 72 hours~ 6 days~ 10 days
+20°C~ 24 hours~ 4 days~ 7 days
+30°C~ 18 hours~ 2 days~ 5 days

Note: Times are approximate and will be affected by changing ambient conditions.
Application steps

MIXING

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.

APPLICATION

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®-156 / 161 /-160 by brush, roller or squeegee.
Preferred application is by using a squeegee and then backrolling crosswise.
Levelling:
Rough surfaces need to be levelled first. Therefore use e.g. Sikafloor®-156/-161/-160 levelling mortar (see PDS).
Wearing course smooth:
Sikafloor®-263 SL is poured, spread evenly by means of a serrated trowel.
After spreading the material evenly, turn the serrated trowel and smooth the surface in order to achieve an aesthetically higher grade of finish.
Roll immediately in two directions with a spiked roller to ensure even thickness.
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.

CLEANING OF EQUIPMENT

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

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