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Sikafloor®-350 N Elastic

2-part PUR highly elastic, crack-bridging coating

Sikafloor®-350 N Elastic is a two part, solvent free, highly elastic polyurethane resin. Suitable for use in hot and tropical climatic conditions.

  • Very good crack-bridging ability even at low temperatures (down to -20°C)
  • Mechanically resistant as a broadcast system
  • Watertight
  • Economical in use
  • Solvent free
 
Sikafloor®-350 N Elastic
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Usage

Sikafloor®-350 N Elastic is used for:
  • Highly elastic, crack-bridging, trafficable, slip resistant wearing layers
  • Particularly suitable for car park decks, garage floors and bridges etc.

Advantages

  • Very good crack-bridging ability even at low temperatures (down to -20°C)
  • Mechanically resistant as a broadcast system
  • Watertight
  • Economical in use
  • Solvent free
 

Packaging

Part A

9.0 kg containers

Part B

21.0 kg containers

Part A+B

30.0 kg ready to mix units

Colour

Pebble grey

Resin - part A:

light brown, liquid

Hardener - part B:

transparent, liquid

Product Details

Sustainability / Certifications / Approvals

SUSTAINABILITY

LEED Rating:
Sikafloor®-350 N Elastic conforms to the requirements of LEED EQ Credit 4.2: Low-Emitting Materials: Paints & Coatings
SCAQMD Method 304-91 VOC Content < 100 g/l

APPROVALS / CERTIFICATES

  • Coating for concrete protection according to the requirements of EN 1504-2:2004 and the EN 13813:2002, provided with the CE-mark.
  • Certified as part of the Surface Protection System OS 11a according to DIN EN 1504-2 and DIN V 18026.
  • Certified as part of the Surface Protection System OS 11b according to DIN EN 1504-2 and DIN V 18026.
  • Reaction to Fire classification according to DIN EN 13501-1. Test institute Hoch Report No. KB-Hoch-101213 and MPA Dresden Report No. 2007-B-0181/8
Product Information

Composition

Polyurethane

Shelf life

12 months from date of production

Storage conditions

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

Density

Part A:

~1.83 kg/l

Part B:

~1.02 kg/l

Part A+B:

~1.18 kg/l

Density value at +23°C.

Solid content by weight

~100%

Solid content by volume

~100%
Technical Information

Shore A Hardness

~60 (14 days / +23°C)

(DIN 53505)

Tensile Strength

~5.0 N/mm2 (14 days / +23°C)(DIN 53504)

Application

Application Information

Mixing Ratio

Part A : part B = 30 : 70 (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.

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

Temperatures

Time

+10°C

~60 minutes

+20°C

~30 minutes

+30°C~15 minutes

Curing Time

Before overcoating Sikafloor®-350 N Elastic broadcast allow:

Substrate temperature

Minimum

Maximum

+10°C

24 hours

*

+20°C

15 hours

*

+30°C

8 hours

*

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

* No max. waiting time if fully broadcast surface is free from all contaminations.

Applied Product Ready for Use

Temperature

Foot traffic

Light traffic

Full cure

+10°C

~24 hours

~5 days

~10 days

+20°C

~15 hours

~3 days

~7 days

+30°C

~8 hours

~2 days

~5 days

Note: Times are approximate and will be affected by changing ambient conditions
Consumption

Consumption

~ 1.2 kg/m2/mm. Please refer to the respective System Data Sheet

This consumption figures are theoretical and do not include any additional material required due to surface porosity, surface profile, variations in level and wastage etc..
Application steps

MIXING

Prior to mixing, stir part B mechanically. When all of part A has been added to part B, mix continuously for 2 minutes until a uniform mix has been achieved. When parts A and B have been mixed, add the quartz sand 0.1 - 0.3 mm 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®-350 N Elastic must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment.

APPLICATION

Sikafloor®-350 N Elastic is poured and spread evenly by means of a serrated/notched trowel. Then, level and remove entrained air with a spiked roller.

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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